BlockBefore

San Mateo County, California

194 topographic sheets cover 104 settlements here, and 63 properties are on the National Register of Historic Places.

Research this county

From the record

63 National Register listings published here, 2 of them National Historic Landmarks.

Sources: the National Register database, National Park Service

California within the United States
San Mateo County within California
Explore by year 1894 1905

What the record shows

  • 4,457 topographic sheet readings cover the county's settlements.
  • 63 properties here are on the National Register of Historic Places: 45 buildings, 11 districts, 3 structures, 3 sites and 1 object.
  • 18 of the 63 listings were added during the 1970s.
  • The Geographic Names Information System records 107 populated places in this county; 104 are covered by at least one topographic sheet.

Places on the National Register

63

Every property in this county listed on the National Register of Historic Places, with the year it was listed and the federal nomination document.

Photograph PropertyType ListedReference
Barron-Latham-Hopkins Gate Lodgebuilding198686001951
Bourn-Roth Estatebuilding197575000479
Nathanial Brittan Party Housebuilding199494001500
Burlingame Railroad Stationbuilding197878000769
Carolands, Thebuilding197575000478
Casa de Tabletabuilding197373000447
Church of the Nativitybuilding198080000855
Ernest Coxhead Housebuilding200000000322
Eugene J. De Sabla Jr. Teahouse and Tea Gardendistrict199292000965
Dickerman Barnstructure198282002259
John Dielmann Housebuilding201515000681
First Congregational Church of Pescaderobuilding198080000856
Folger Estate Stable Historic Districtdistrict200404000328
Golden Gate National Cemeterydistrict201616000058
Mortimer Green Gables-Fleischhacker Country Housedistrict198686002396
Green Oaks Ranch Housebuilding197676000526
Arthur and Mona Hofmann Housebuilding199191000926
Holbrook-Palmer Estate, "Elmwood"building201616000663
Hotel St. Matthewbuilding199897001663
Howard-Ralston Eucalyptus Tree Rowssite201212000127
Independence Hallbuilding197878000772
James Johnston Housebuilding197373000446
Kohl Mansionbuilding198282002258
Lathrop Housebuilding197373000448
Martin Buildingbuilding199797000043
Arthur C. and Judith Mathews Housebuilding2021100007224
Menlo Park Railroad Stationbuilding197474000556
Methodist Episcopal Church at Half Moon Baybuilding198080000854
Methodist Episcopal Church of Pescaderobuilding198282002260
Robert Mills Dairy Barndistrict199090000120
National Bank of San Mateobuilding199797000331
New Sequoia Theater Buildingbuilding199494000431
Newhall Estatebuilding200707000308
John Offerman Housebuilding201515000682
Our Lady of the Waysidebuilding197777000338
POLARIS (research vessel)structure201515000100
Pigeon Point Lighthousedistrict197777000337
Pilarcitos Creek Bridgestructure201414000110
Point Montara Light Stationdistrict199191001094
Portola Valley Schoolbuilding197474000557
Princeton Hotelbuilding197979000543
William C. Ralston Housebuilding196666000234
Redwood City Historic Commercial Buildingsdistrict197777000339
Redwood City Woman's Clubbuilding2021100006305
San Francisco Bay Discovery Sitesite196868000022
San Gregorio Housebuilding197777000341
San Mateo County Courthousebuilding197777000340
Sanchez Adobe Parkdistrict197676000525
Sequoia Union High Schooldistrict199595000389
William Adam Simmons Housebuilding199292000995
South San Francisco Hillside Signobject199696000761
Southern Pacific Depotbuilding198484001191
Southern Pacific Depotbuilding197878000770
Southern Pacific Railroad Bayshore Roundhousebuilding201010000113
Timby Housebuilding2024100007818
US Post Main Office-San Mateobuilding198888000443
Union Cemeterysite198383001237
Amelia Vollers Housebuilding201514001205
Commodore James Watkins Housebuilding200878000768
William A. Whifler Housebuilding201616000096
Woodside Storebuilding198585001563
X-100building201616000381
Yoshiko Yamanouchi Housedistrict2023100009653

Bird's-eye views and land ownership maps

2

Drawn when these were printed as single large sheets: the town seen from the air, and the county divided into its farms with every owner named. Each opens the original at the Library of Congress.

Bird's-eye view, 1905 - [San Mateo Park
Bird's-eye view (1905) - [San Mateo Park. Library of Congress.
Land ownership map, 1894 - Official map of San Mateo County, California
Land ownership map (1894) - Official map of San Mateo County, California. Library of Congress.

Photographs from libraries nationwide

6 of 91 shown

Selected from the Digital Public Library of America's 91 image records catalogued for this county. Every one shown here carries a public-domain status or a licence that permits reuse on a site that carries advertising; non-commercial, share-alike and restricted images are excluded. The selection is spread across the county's towns (at most eight per town), so no single institution's bulk upload crowds out the rest. Each opens the holding library's record, and the complete set at the Digital Public Library of America is one click away.

Burberick Motor Sales, The Peninsula's Most Modern and Best Equipped Motor Car Dealer, 790 San Mateo Drive, San Mateo, Calif., Boston Public Library - undated
Burberick Motor Sales, The Peninsula's Most Modern and Best Equipped Motor Car Dealer, 790 San Mateo Drive, San Mateo, Calif.. Boston Public Library, via the Digital Public Library of America.
The Casino, Boston Public Library - undated
The Casino. Boston Public Library, via the Digital Public Library of America.
The sand team, Boston Public Library - undated
The sand team. Bellows, George, 1882-1925, Boston Public Library, via the Digital Public Library of America.
Hotel Benjamin Franklin, San Mateo, California, Boston Public Library - undated
Hotel Benjamin Franklin, San Mateo, California. Boston Public Library, via the Digital Public Library of America.
Burberick Motor Sales, The Peninsula's Most Modern and Best Equipped Motor Car Dealer, Boston Public Library - undated
Burberick Motor Sales, The Peninsula's Most Modern and Best Equipped Motor Car Dealer. Boston Public Library, via the Digital Public Library of America.
Casa Mateo Inn, San Mateo, California, Boston Public Library - undated
Casa Mateo Inn, San Mateo, California. Boston Public Library, via the Digital Public Library of America.

The county from the air

48 shown

Flown by the U.S. Geological Survey between 1937 and 1989, the Aerial Photo Single Frames collection is the definitive mid-century view of the land: fields, roads and rivers as the camera saw them. The Survey holds 7,719 frames inside the rectangle that bounds this county; the 48 frames below were taken over the county itself, chosen across the decades of flights (at most four a year from that rectangle), so one flight cannot crowd out the rest. The full set is free to browse and download at EarthExplorer under the dataset Aerial Photo Single Frames.

U.S. Geological Survey aerial photograph, 1953-07-01, scale 1:23600
1953-07-01, scale 1:23600. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1953-07-01, scale 1:23600
1953-07-01, scale 1:23600. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1953-07-01, scale 1:23600
1953-07-01, scale 1:23600. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1953-07-01, scale 1:23600
1953-07-01, scale 1:23600. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1966-04-05, scale 1:21670
1966-04-05, scale 1:21670. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1966-04-05, scale 1:21670
1966-04-05, scale 1:21670. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1966-04-05, scale 1:21670
1966-04-05, scale 1:21670. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1967-09-19, scale 1:21670
1967-09-19, scale 1:21670. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1967-09-19, scale 1:21670
1967-09-19, scale 1:21670. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1967-09-19, scale 1:21670
1967-09-19, scale 1:21670. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1967-09-19, scale 1:21670
1967-09-19, scale 1:21670. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1968-04-16, scale 1:30000
1968-04-16, scale 1:30000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1968-04-16, scale 1:30000
1968-04-16, scale 1:30000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1968-04-16, scale 1:30000
1968-04-16, scale 1:30000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1968-04-16, scale 1:30000
1968-04-16, scale 1:30000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1946-07-29, scale 1:23600
1946-07-29, scale 1:23600. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1946-07-29, scale 1:23600
1946-07-29, scale 1:23600. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1946-07-29, scale 1:23600
1946-07-29, scale 1:23600. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1946-07-29, scale 1:23600
1946-07-29, scale 1:23600. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1948-09-26, scale 1:23600
1948-09-26, scale 1:23600. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1948-09-26, scale 1:23600
1948-09-26, scale 1:23600. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1948-09-26, scale 1:23600
1948-09-26, scale 1:23600. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1948-09-26, scale 1:23600
1948-09-26, scale 1:23600. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1956-06-27, scale 1:34000
1956-06-27, scale 1:34000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1956-06-27, scale 1:34000
1956-06-27, scale 1:34000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1956-06-27, scale 1:34000
1956-06-27, scale 1:34000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1956-06-27, scale 1:34000
1956-06-27, scale 1:34000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1958-07-25, scale 1:30000
1958-07-25, scale 1:30000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1958-07-25, scale 1:30000
1958-07-25, scale 1:30000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1958-07-25, scale 1:30000
1958-07-25, scale 1:30000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1958-07-25, scale 1:30000
1958-07-25, scale 1:30000. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1960-04-10, scale 1:61600
1960-04-10, scale 1:61600. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1960-04-10, scale 1:61600
1960-04-10, scale 1:61600. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1960-04-10, scale 1:61600
1960-04-10, scale 1:61600. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1960-04-10, scale 1:61600
1960-04-10, scale 1:61600. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1966-04-05, scale 1:21670
1966-04-05, scale 1:21670. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1969-07-17, scale 1:122664
1969-07-17, scale 1:122664. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1969-07-17, scale 1:120344
1969-07-17, scale 1:120344. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1969-07-17, scale 1:120344
1969-07-17, scale 1:120344. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1969-07-17, scale 1:119758
1969-07-17, scale 1:119758. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1970-03-10, scale 1:100386
1970-03-10, scale 1:100386. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1970-03-10, scale 1:100842
1970-03-10, scale 1:100842. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1970-03-10, scale 1:101270
1970-03-10, scale 1:101270. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1970-03-10, scale 1:101270
1970-03-10, scale 1:101270. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1971-03-31, scale 1:61627
1971-03-31, scale 1:61627. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1971-03-31, scale 1:61627
1971-03-31, scale 1:61627. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1971-03-31, scale 1:61627
1971-03-31, scale 1:61627. U.S. Geological Survey aerial photograph.
U.S. Geological Survey aerial photograph, 1971-03-31, scale 1:61627
1971-03-31, scale 1:61627. U.S. Geological Survey aerial photograph.

Weather records

45 stations, 16 gages

The thermometers that kept this county's weather, and the gages that measured the flow of its streams, as the federal records hold them. The extremes below are measured values from those records, not estimates.

The 1950 census, district by district

282 districts

Who lived here in 1950, one enumeration district at a time, as the Census Bureau described each district. Each row opens its official National Archives result, with Population Schedules and ED Maps available there.

  • 41-1Burlingame city, comprising parts of Judicial Townships 1 and 5: Burlingame city - That part in Judicial Township 1 Bounded by City limits; Judicial Township line; City limits; City limits
  • 41-2Burlingame city - That part in Judicial Township 5 Bounded by City limits; City limits; Dwight Rd.; Howard Ave.
  • 41-3Burlingame city - That part in Judicial Township 5 Bounded by City limits; City limits; Howard Ave.; Dwight Rd., Dwight Rd. extended
  • 41-4Burlingame city - That part in Judicial Township 5 Bounded by City limits; Dwight Rd. extended, Dwight Rd.; Howard Ave.; Bloomfield Rd., Oak Grove Ave., Oak Grove Ave. extended
  • 41-5Burlingame city - That part in Judicial Township 5 Bounded by Bloomfield Rd.; Howard Ave.; Southern Pacific Railroad.; Oak Grove Ave.
  • 41-6Burlingame city - That part in Judicial Township 5 Bounded by City limits; Oak Grove Ave. extended, Oak Grove Ave.; Southern Pacific Railroad; Morrell Ave., Morrell Ave. extended
  • 41-7Burlingame city - That part in Judicial Township 5 Bounded by City limits; Morrell Ave. extended, Morrell Ave.; Southern Pacific Railroad, City limits; City limits
  • 41-8Burlingame city - That part in Judicial Township 5 Bounded by City limits, Southern Pacific Railroad; Grove Ave.; El Camino Real; Dufferin Ave.
  • 41-9Burlingame city - That part in Judicial Township 5 Bounded by Southern Pacific Railroad; Broadway; El Camino Real; Grove Ave.
  • 41-10Burlingame city - That part in Judicial Township 5 Bounded by Southern Pacific Railroad; Palm Dr., Edgehill Dr.; Paloma Ave., Sanchez Ave., Laguna Ave.; Broadway
  • 41-11Burlingame city - That part in Judicial Township 5 Bounded by Edgehill Dr., Palm Dr., Southern Pacific Railroad; Oak Grove Ave.; Acacia Dr.
  • 41-12Burlingame city - That part in Judicial Township 5 Bounded by Southern Pacific Railroad; South Lane, California Dr., Burlingame Ave.; Primrose Rd., Floribunda Ave., Ansel Ave.; Oak Grove Ave.
  • 41-13Burlingame city - That part in Judicial Township 5 Bounded by Dwight Rd.; City limits; Southern Pacific Railroad; Howard Ave.
  • 41-14Burlingame city - That part in Judicial Township 5 Bounded by Southern Pacific Railroad; City limits; El Camino Real; Burlingame Ave., California Dr., South Lane
  • 41-15Burlingame city - That part in Judicial Township 5 Bounded by Ansel Ave., Floribunda Ave., Primrose Rd.; Burlingame Ave.; El Camino Real, City limits, El Camino Real; Oak Grove Ave.
  • 41-16Burlingame city - That part in Judicial Township 5 Bounded by Acacia Dr.; Oak Grove Ave.; El Camino Real; Edgehill Dr.
  • 41-17Burlingame city - That part in Judicial Township 5 Bounded by Laguna Ave., Sanchez Ave., Paloma Ave.; Edgehill Dr.; El Camino Real; Broadway
  • 41-18Burlingame city - That part in Judicial Township 5 Bounded by El Camino Real; Broadway; Bernal Ave.; Easton Dr.
  • 41-19Burlingame city - That part in Judicial Township 5 Bounded by El Camino Real; Easton Dr.; Bernal Ave. Hillside Dr.
  • 41-20Burlingame city - That part in Judicial Township 5 Bounded by El Camino Real; Hillside Dr.; Bernal Ave., Devereux Dr.; Ray Dr.
  • 41-21Burlingame city - That part in Judicial Township 5 Bounded by City limits; Dufferin Ave., El Camino Real, Ray Dr., Devereux Dr., Bernal Ave., Adeline Dr.; City limits; Judicial Township line, City limits
  • 41-22Burlingame city - That part in Judicial Township 5 Bounded by Bernal Ave.; Hillside Dr.; Alvarado Ave., City limits; City limits, Adeline Dr.
  • 41-23Burlingame city - That part in Judicial Township 5 Bounded by Bernal Ave.; Broadway; City limits, Alvarado Ave.; Hillside Dr.
  • 41-24Burlingame city - That part in Judicial Township 5 Bounded by El Camino Real; Carmelita Ave., Drake Ave., City limits; City limits; Broadway
  • 41-25Burlingame city - That part in Judicial Township 5 Bounded by El Camino Real; City limits; City limits, Drake Ave.; Carmelita Ave.
  • 41-26Burlingame city - That part in Judicial Township 5 Bounded by El Camino Real; Ralston Ave., Occidental Ave.; City limits; City limits
  • 41-27Burlingame city - That part in Judicial Township 5 Bounded by El Camino Real; City limits; Occidental Ave., Ralston Ave.
  • 41-28Millbrae city, comprising parts of Judicial Townships 1 and 5: Millbrae city - That part in Judicial Township 1 Bounded by City limits; City limits, El Camino Real; Paramount Dr.; Barcelona Dr., City limits
  • 41-29Millbrae city - That part in Judicial Township 1 Bounded by City limits; City limits; City limits; Park Blvd., Juanita Ave., Santa Florita Ave.
  • 41-30Millbrae city - That part in Judicial Township 1 Bounded by City limits; Santa Florita Ave., Juanita Ave., Park Blvd., City limits; Capuchino Dr.; Santa Margarita Ave., Santa Barbara Dr., Santa Anita Ave., Bayview Ave., Bayview Ct., Bayview Ct. extended
  • 41-31Millbrae city - That part in Judicial Township 1 including non- adjacent area west of Skyline Blvd. Bounded by City limits, Bayview Ct. extended, Bayview Ct., Bayview Ave., Santa Anita Ave., Santa Barbara Dr., Santa Margarita Ave., Capuchino Dr., City limits, Barcelona Dr., Paramount Dr.; El Camino Real; Judicial Township line, City limits; City limits
  • 41-32Millbrae city - That part in Judicial Township 1, including non- adjacent Areas A and B and excluding San Francisco Municipal Airport (Mills Field) (part) Bounded by City limits; City limits; Judicial Township line; El Camino Real
  • 41-33San Francisco Municipal Airport (Mills Field) - That part in Millbrae city, Judicial Township 1 (Remainder of San Francisco Municipal Airport (Mills Field) is in San Bruno and South San Francisco cities, Millbrae city in Judicial Township 5, and in Judicial Township 1)
  • 41-34Millbrae city - That part in Judicial Township 5 excluding San Francisco Municipal Airport (Mills Field) (part) Bounded by Judicial Township line, City limits, Judicial Township line; City limits, Judicial Township line, City limits; City limits; El Camino Real
  • 41-35San Francisco Municipal Airport (Mills Field) - That part in Millbrae city, Judicial Township 5 (Remainder of San Francisco Municipal Airport (Mills Field) is in San Bruno and South San Francisco cities, Millbrae city in Judicial Township 1 and in Judicial Township 1)
  • 41-36Millbrae city - That part in Judicial Township 5 Bounded by Judicial Township line; El Camino Real; City limits; Elder Ave. extended, Elder Ave.
  • 41-37Millbrae city - That part in Judicial Township 5 Bounded by Judicial Township line; Elder Ave.; Hillcrest Blvd.; Judicial Township line
  • 41-38Millbrae city - That part in Judicial Township 5 Bounded by Hillcrest Blvd.; Elder Ave., Elder Ave. extended; City limits; Judicial Township line
  • 41-39Judicial Township 1, outside Burlingame and Millbrae cities: Colma town
  • 41-40Daly City: Daly City - That part Bounded by City limits; City limits; Crocker Ave.; Bellevue Ave.
  • 41-41Daly City - That part Bounded by City limits Bellevue Ave.; Templeton Ave.; Winchester, Oliver
  • 41-42Daly City - That part Bounded by City limits; Oliver, Winchester; Evergreen Ave.; Mission
  • 41-43Daly City - That part Bounded by City limits; Mission, Evergreen Ave.; Winchester; Crocker Ave., Flournoy, San Jose Ave.
  • 41-44Daly City - That part Bounded by City limits; San Jose Ave.; Los Olivos Ave.; Santa Barbara Ave.
  • 41-45Daly City - That part Bounded by City limits; Santa Barbara Ave.; Los Olivos Ave.; Southern Pacific Railroad.
  • 41-46Daly City - That part Bounded by City limits; Southern Pacific Railroad; Westlake Ave. extended, Unnamed road, Unnamed road extended, City limits; City limits
  • 41-47Daly City - That part Bounded by Los Olivos Ave.; San Diego Ave.; North Parkview Ave., North Parkview Ave. extended; Southern Pacific Railroad
  • 41-48Daly City - That part Bounded by Los Olivos Ave.; Mission; North Parkview Ave.; San Diego Ave.
  • 41-49Daly City - That part Bounded by Flournoy, Crocker Ave.; Peoria, East Vista Ave.; Hillside Blvd., Mission, San Jose Ave.
  • 41-50Daly City - That part Bounded by Winchester; Templeton Ave.; Bellevue Ave.; Crocker Ave.
  • 41-51Daly City - That part Bounded by East Vista Ave., Peoria, Crocker Ave.; City limits; City limits, Thiers; Hillside Blvd.
  • 41-52Daly City - That part Bounded by Hillside Blvd., Thiers, City limits; City limits, Price; Mission
  • 41-53Daly City - That part Bounded by N. Parkview Ave. extended, N. Parkview Ave.; Mission; Citrus Ave.; Niantic Ave., Westlake Ave., Westlake Ave. extended, Southern Pacific Railroad
  • 41-54Daly City - That part Bounded by Unnamed road extended, Unnamed road, Westlake Ave. extended; Westlake Ave., Niantic Ave., Citrus Ave.; Mission; School; City limits
  • 41-55Daly City - That part Bounded by School; Mission, City limits; City limits; City limits
  • 41-56Daly City - That part Bounded by Price; City limits; City limits; Mission
  • 41-57San Bruno city: San Bruno city - That part Bounded City limits; City limits, San Mateo Ave.; San Bruno Ave.; Huntington Ave.; Southern Pacific Railroad Right of Way
  • 41-58San Bruno city - That part Bounded by City limits; City limits, Southern Pacific Railroad Right of Way.; Euclid Ave., Masson Ave., San Bruno Ave.; El Camino Real
  • 41-59San Bruno city - That part excluding U.S. Naval Advance Base Personnel Depot (part) Bounded by City limits; El Camino Real; Angus Ave., Acacia Ave., Kains Ave., Cherry Ave., Jenevein Ave.; City limits
  • 41-60U.S. Naval Advance Base Personnel Depot - That part in San Bruno city (Remainder of U.S. Naval Advance Base Personnel Depot is in Judicial Township 1)
  • 41-61San Bruno city - That part Bounded by San Bruno Ave., Masson Ave., Euclid Ave.; Southern Pacific Railroad Right of Way; Angus Ave., Masson Ave., Kains Ave. El Camino Real
  • 41-62San Bruno city - That part Bounded by City limits; City limits; San Bruno Ave. E. extended, San Bruno E.; San Mateo Ave.
  • 41-63San Bruno city - That part, excluding San Francisco Municipal Airport (Mills Field) (part) Bounded by San Bruno Ave. E., San Bruno Ave. E. extended; City limits; City limits; Huntington Ave.
  • 41-64San Francisco Municipal Airport (Mills Field) - That part in San Bruno city (Remainder of San Francisco Municipal Airport (Mills Field) is in South San Francisco city, Millbrae city in Judicial Township 1 and 5 and in Judicial Township 1)
  • 41-65San Bruno city - That part Bounded by Kains Ave., Masson Ave., Angus Ave.; Huntington Ave.; Sylvan Ave.; El Camino Real
  • 41-66San Bruno city - That part Bounded by Kains Ave., Acacia Ave., Angus Ave.; El Camino Real; Jenevein Ave.; Cherry Ave.
  • 41-67San Bruno city - That part Bounded by Jenevein Ave.; El Camino Real; Crystal Springs Ave.; City limits
  • 41-68San Bruno city - That part Bounded by Sylvan Ave.; Huntington Ave.; Georgia Ave., Chapman Ave.; El Camino Real
  • 41-69San Bruno city - That part Bounded by Crystal Springs Ave., El Camino Real, Chapman Ave., Georgia Ave.; Huntington Ave.; City limits, San Felipe Ave.; Cypress Ave.
  • 41-70San Bruno city - That part Bounded by City limits, Crystal Springs Ave., Cypress Ave., San Felipe Ave.; City limits; City limits; City limits
  • 41-71South San Francisco city: South San Francisco city - That part Bounded by City limits; City limits; City limits; Bay Shore State Hwy., Pine Ave., Linden Ave., Bay Shore State Hwy.
  • 41-72South San Francisco city - That part Bounded by City limits; Bay Shore State Hwy.; Linden Ave., Hillside Blvd.
  • 41-73South San Francisco city - That part Bounded by Hillside Blvd.; Linden Ave.; Aspen Ave.; Maple Ave., south and west boundary of Martin Grammar School, west boundary of Public park
  • 41-74South San Francisco city - That part Bounded by City limits, Hillside Blvd.; West boundary of Public park, west and south boundary of Martin Grammar School, Maple Ave. Park way, Palm Ave., Magnolia Ave., Miller Ave.; Chestnut Ave.
  • 41-75South San Francisco city - That part Bounded by City limits; Chestnut Ave.; Mission Rd., City limits; City limits
  • 41-76South San Francisco city - That part Bounded by City limits, Mission Rd.; State Hwy. (El Camino Real); City limits; City limits; City limits
  • 41-77South San Francisco city - That part Bounded by Miller Ave.; Orange Ave., W. Orange Ave.; State Hwy. (El Camino Real); Chestnut Ave.
  • 41-78South San Francisco city - That part Bounded by Miller Ave.; Spruce Ave.; Baden Ave.; Orange Ave.
  • 41-79South San Francisco city - That part Bounded by Miller Ave.; Linden Ave.; Baden Ave. Spruce Ave.
  • 41-80South San Francisco city - That part Bounded by Park way; Maple Ave.; Miller Ave.; Magnolia Ave., Palm Ave.
  • 41-81South San Francisco city - That part Bounded by Aspen Ave;. Linden Ave.; Miller Ave.; Maple Ave.
  • 41-82South San Francisco city - That part Bounded by Pine Ave.; Bay Shore State Hwy.; Grand Ave.; Linden Ave.
  • 41-83South San Francisco city - That part excluding San Francisco Municipal Airport (Mills Field) (part) Bounded by Grand Ave.; Bay Shore State Hwy.; City limits; City limits, Linden Ave.
  • 41-84San Francisco Municipal Airport - That part in South San Francisco city (Remainder of San Francisco Municipal Airport is in San Bruno city, Millbrae city, Judicial Townships 1 and 5, and in Judicial Township 1)
  • 41-85South San Francisco city - That part Bounded by Baden Ave.; Linden Ave.; Railroad Ave.; Spruce Ave.
  • 41-86South San Francisco city - That part Bounded by Baden Ave.; Spruce Ave.; Railroad Ave.; Orange Ave.
  • 41-87South San Francisco city - That part Bounded by Railroad Ave.; Linden Ave., City limits; City limits, Southern Pacific Railroad; Magnolia Ave. extended, Magnolia Ave. SUPERVISOR NOTE: THIS Enumeration District IS EXPECTED TO REQUIRE SUBDIVISION. EXAMINE BEFORE ENUMERATION. SEE INSTRUCTIONS.
  • 41-88South San Francisco city - That part Bounded by Railroad Ave.; Magnolia Ave., Magnolia Ave. extended; Southern Pacific Railroad; W. Orange Ave.
  • 41-89South San Francisco city - That part Bounded by W. Orange Ave.; Southern Pacific Railroad; City limits; State Hwy. (El Camino Real), City limits, State Hwy. (El Camino Real) SUPERVISOR NOTE: THIS Enumeration District IS EXPECTED TO REQUIRE SUBDIVISION. EXAMINE BEFORE ENUMERATION. SEE INSTRUCTIONS.
  • 41-90South San Francisco city - That part Bounded by City limits; State Hwy. (El Camino Real); City limits; City limits
  • 41-91South San Francisco city - That part Bounded by City limits; State Hwy. (El Camino Real); City limits; City limits
  • 41-92Judicial Township 1 - That part Bounded by County line; Bay Shore Hwy.; Geneva Ave., Tarawa Rd., Savo Bay, K; Schwerin
  • 41-93Judicial Township 1 - That part Bounded by County line; Schwerin; Partridge Ave., Oriente, Ottilia, Rio Verde, Geneva Ave.
  • 41-94Judicial Township 1 - That part Bounded by Geneva Ave., Rio Verde, Ottilia; Oriente, Partridge Ave., Schwerin; Carquinez, Cow Palace property fence line; Cow Palace property fence line, Santos
  • 41-95Judicial Township 1 - That part Bounded by County line; County line; County line, Unnamed stream; Bay Shore Hwy, Main, Iwo Jima, Lingayen Rd., Schwerin, K, Savo Bay, Tarawa Rd., Geneva Ave., Bay Shore Hwy.
  • 41-96Judicial Township 1 - That part Bounded by Unnamed stream, County line; County line; South San Francisco city limits; Bay Shore Hwy. , San Bruno Ave., San Francisco Ave., San Francisco Ave. extended, Bay Shore Hwy.
  • 41-97Judicial Township 1 - That part Bounded by Mariposa; San Bruno Ave., Annis Rd.; Humboldt Rd., Kings Rd.; San Benito Rd., Visitacion Ave.
  • 41-98Judicial Township 1 - That part Bounded by Humbolt Rd., San Francisco Ave. extended, San Francisco Ave. San Bruno Ave., Mariposa, Visitacion Ave.; San Benito Rd.; Kings Rd., Trinity Rd., Humbolt Rd.
  • 41-99Judicial Township 1 - That part Bounded by County line, Santos, Cow Palace property fence line, Carquinez, Schwerin, Lingayen Rd., Main, Iwo Jima; Bay Shore Hwy., San Francisco Ave. extended, San Francisco Ave., San Francisco Ave. extended, Humbolt Rd., Trinity Rd., Kings Rd., Humbolt Rd., Annis Rd., San Bruno Ave., Bay Shore Hwy. South San Francisco city limits; South San Francisco city limits, Hillside Blvd.; Colma town limits, Wyoming, Byrne, Lisbon, Daly City limits
  • 41-100Judicial Township 1 - That part Bounded by Daly City limits; Hillside Blvd, Lisbon, Byrne, Wyoming, Colma town limits; Colma town limits; Clark Ave., A, Taylor, Daly City limits
  • 41-101Judicial Township 1 - That part Bounded by Daly City limits; Taylor, A, Clark Ave.; Colma town limits; Junipero Serra Blvd., Pierce, San Pedro Ave., Daly City limits
  • 41-102Judicial Township 1 - That part Bounded by 88th, Daly City limits; Daly City limits, San Pedro Ave.; Pierce; Annie, Washington
  • 41-103BJudicial Township 1 - That part Bounded by 87th, Larchmont Dr., Mac Arthur Dr., Washington, Annie, Pierce, Junipero Serra Blvd.; San Pedro Ave. (County Rd.); Skyline Blvd.
  • 41-103AJudicial Township 1 - That part Bounded by Daly City limits; N. White, White, Midway Ave., Mac Arthur Dr., Mac Arthur Dr., Larchmont Dr., 87th; Skyline Blvd.
  • 41-104Judicial Township 1 - That part Bounded by Daly City limits; Daly City limits; 88th, Mac Arthur Dr., Midway Ave.; White, N. White, Daly City limits
  • 41-105Judicial Township 1 - That part Bounded by County line; Daly City limits; Daly City limits; Daly City limits
  • 41-106Judicial Township 1 - That part Bounded by County line; Daly City limits; Daly City limits, Olympic Club boundary line; County line
  • 41-107Judicial Township 1 - That part Bounded by Olympic Club boundary line, Daly City limits, Skyline Blvd., County Rd. (San Pedro Ave.) Junipero Serra Blvd., Colma town limits, Hillside Blvd.; South San Francisco city limits, boundary line of California Golf Club of San Francisco, Junipero Serra Blvd., South San Francisco city limits, San Bruno city limits; Sneath Rd., Skyline Blvd., County Rd.; Coast Hwy., Charing Cross way, Clarenden Rd., Ressa Rd., Moana Way, Kaumea Lane, Talbot Ave., San Pedro Ter., Vallejo Ter. Carmel Ave., Mirador Ter., Paloma Ave., Coast Hwy., Milagra Creek, County line
  • 41-108Judicial Township 1 - That part Bounded by Milagra Creek, Coast Hwy. Paloma Ave., Mirador Ter., Carmel Ave., Vallejo Ter., San Pedro Ter., Talbot Ave.; Kaumea Lane, Moana Way, Ressa Rd.; Clarenden Rd., Charing Cross way, Coast Hwy., Clarendon Ave., Clarendon Ave. extended; County line
  • 41-109Judicial Township 1 - That part Bounded by Boundary line of California Golf Club of San Francisco, South San Francisco city limits; South San Francisco city limits; South San Francisco city limits, boundary line of California Golf Club of San Francisco; Boundary line of California Golf Club of San Francisco
  • 41-110Judicial Township 1 - That part excluding U.S. Naval Advance Base Personnel Depot (part) Bounded by Clarenden Ave. extended, Clarenden Ave., Coast Hwy., County Rd., Skyline Blvd., Sneath Rd., San Bruno city limits; San Bruno city limits, Millbrae city limits, Judicial Township line, Burlingame city limits, Judicial Township line; Judicial Township line; County line
  • 41-111U.S. Naval Advance Base Personnel Depot - That part in Judicial Township 1 (Remainder of U.S. Naval Advance Base Personnel Depot is in San Breno city)
  • 41-112Judicial Township 1 - That part Bounded by San Bruno city limits; Southern Pacific Railroad; Santa Inez Ave.; Millbrae city limits, San Bruno city limits
  • 41-113Judicial Township 1 - That part excluding San Francisco Municipal Airport (Mills Field) (part) and U.S. Coast Guard Air Base Bounded by South San Francisco city limits; County line; Judicial Township line, Millbrae city limits, Judicial Township line, Millbrae city limits, Judicial Township line; Millbrae city limits, Santa Inez Ave., Southern Pacific Railroad, San Bruno city limits
  • 41-114San Francisco Municipal Airport (Mills Field) - That part in Judicial Township 1 (Remainder of San Francisco Municipal Airport is in San Bruno and South San Francisco cities, and in Millbrae city in Judicial Townships 1 and 5)
  • 41-115U.S. Coast Guard Air Base (In Judicial Township 1) (Remainder of Judicial Township 1 is in Burlingame and Millbrae cities)
  • 41-116Hillsborough town, comprising parts of Judicial Townships 2 and 5: Hillsborough town - That part in Judicial Township 2 Bounded by Town limits; Town limits; Town limits; Hillsborough Blvd., Parkside Ave., Ralston Ave., Eucalyptus Ave., Forest View Ave., Oaks Dr., Oakdale Rd., Summit Dr.
  • 41-117Hillsborough town - That part in Judicial Township 2 Bounded by Judicial Township line, Town limits, Summit Dr., Oakdale Rd., Oaks Dr., Forest View Ave.; Eucalyptus Ave., Ralston Ave., Parkside Ave., Hillsborough Blvd. Town limits, Hillsborough Blvd.; W. Santa Inez Ave., Black Mountain Rd.; Town limits
  • 41-118Hillsborough town - That pert in Judicial Township 2 Bounded by Black Mountain Rd., W. Santa Inez Ave.; Brentwood Rd., El Cerrito Ave., Town limits; Town limits; Town limits
  • 41-119Hillsborough town - That part in Judicial Township 2 Bounded by Town limits; Town limits ;Town limits; E Cerrito Ave., Brentwood Rd., W. Santa Inez Ave., Hillsborough Blvd.
  • 41-120Hillsborough town - That part in Judicial Township 5 Bounded by Town limits; Town limits; Judicial Township line; Town limits
  • 41-121Judicial Township 2, outside Hillsborough town: Belmont city: Belmont city - That part Bounded by City limits; City limits; City limits; Alameda de las Pulgas, Ralston Ave., County Rd., City limits
  • 41-122Belmont city - That part excluding College of Notre Dame Bounded by City limits; Ralston Ave.; Alameda de las Pulgas, Arbor Ave., Folger Dr., Notre Dame Ave., North Rd., City limits
  • 41-123College of Notre Dame (In Belmont city)
  • 41-124Belmont city - That part Bounded by City limits; North Rd., Notre Dame Ave., Folger Dr.; Arbor Ave.; Alameda de las Pulgas
  • 41-125Belmont city - That part excluding California Sanatorium and St. Joseph's Military Academy Bounded by City limits; Alameda de las Pulgas, Ralston Ave., Alameda de las Pulgas; City limits; City limits, Cipriani Blvd., Newlands Ave.
  • 41-126California Sanatorium (In Belmont city)
  • 41-127St. Joseph's Military Academy (In Belmont city)
  • 41-128Belmont city - That part Bounded by City limits, Newlands Ave.; Cipriani Blvd.; City limits; City limits
  • 41-129ASan Carlos city - That part Bounded by Manzanita Ave., Chestnut, Magnolia Ave., Elm, Oak, El Camino Real, City limits; City limits; E. San Carlos Ave., San Carlos Ave.; Sycamore
  • 41-129BSan Carlos city - That part Bounded by City limits; El Camino Real; Oak, Elm, Magnolia Ave., Chestnut, Manzanita Ave., Sycamore, Right of Way (Hillside Ave. ) Madrona; Highland Ave., Dartmouth Ave.
  • 41-130San Carlos city - That part Bounded by City limits; City limits, Dartmouth Ave., Northam Ave., Highland Ave., Madrona, Hillside Ave., Sycamore; San Carlos Ave.; San Carlos Ave.
  • 41-131San Carlos city - That part Bounded by San Carlos Ave.; San Carlos Ave., Alameda de las Pulgas; City limits; City limits
  • 41-132San Carlos city - That part Bounded by San Carlos Ave.; Cordilleras Ave.; Brittan Ave.; Alameda de las Pulgas
  • 41-133San Carlos city - That part Bounded by San Carlos Ave.; Chestnut, Woodland Ave.; Brittan Ave.; Cordilleras Ave.
  • 41-134San Carlos city - That part Bounded by San Carlos Ave., E. San Carlos Ave.; City limits; Brittan Ave. extended, Brittan Ave.; Woodland Ave., Chestnut
  • 41-135San Carlos city - That part Bounded by Belmont Ave., Southern Pacific Railroad, Brittan Ave. extended; City limits; City limits; Warwick, Eaton Ave., Cedar
  • 41-136San Carlos city - That part Bounded by Brittan Ave.; Southern Pacific Railroad; Belmont Ave.; Oakhurst Ave., Howard Ave., Cordilleras Ave.
  • 41-137San Carlos city - That part Bounded by Brittan Ave.; Cordilleras Ave., Howard Ave., Oakhurst Ave., Belmont Ave., Cordilleras Ave., Emerald Ave., Garnet Ave.; St. Francis Way; City limits
  • 41-138AN/A
  • 41-138BN/A
  • 41-139San Carlos city - That part Bounded by St. Francis Way; Cedar, Eaton Ave., Warwick; City limits; City limits
  • 41-140San Mateo city: San Mateo city - That part Bounded by City limits; City limits; Monte Diablo Ave extended, Monte Diablo Ave.; N. Grant, Indian Ave., N. Grant, Poplar Ave., Bayshore Ave.
  • 41-141San Mateo city - That part Bounded by City limits Bayshore Ave.; Poplar Ave.; N. Humboldt, City limits
  • 41-142San Mateo city - That part Bounded by City limits; N. Humboldt; Poplar Ave.; Southern Pacific Railroad
  • 41-143San Mateo city - That part Bounded by City limits; Southern Pacific Railroad; Villa Terrace, San Mateo Dr., Grand Blvd.; El Camino Real
  • 41-144San Mateo city - That part Bounded by City limits; El Camino Real; Clark Dr.; Costa Rica Ave.
  • 41-145San Mateo city - That part Bounded by City limits; Costa Rica Ave.; Clark Dr., Edgewood Rd.; City limits
  • 41-146San Mateo city - That part Bounded by Edgewood Rd., Clark Dr.; Costa Rica Ave.; City limits; City limits
  • 41-147San Mateo city - That part Bounded by Clark Dr.; El Camino Real; Santa Inez Ave., Erickson Ave., City limits; Costa Rica Ave.
  • 41-148San Mateo city - That part Bounded by Grand Blvd., San Mateo Dr., Villa Terrace; Southern Pacific Railroad; Poplar Ave.; El Camino Real
  • 41-149San Mateo city - That part Bounded by Poplar Ave.; N. Grant, Indian Ave.; Monte Diablo Ave. Southern Pacific Railroad
  • 41-150San Mateo city - That part Bounded by Poplar Ave.; Southern Pacific Railroad; Tilton Ave.; San Mateo Dr.
  • 41-151San Mateo city - That part Bounded by Poplar Ave.; San Mateo Dr.; Tilton Ave.; El Camino Real
  • 41-152San Mateo city - That part Bounded by Erickson Ave., Santa Inez Ave.; El Camino Real; 3rd Ave., Eaton Rd.; City limits
  • 41-153San Mateo city - That part excluding Benjamin Franklin Hotel Bounded by Tilton Ave.; Southern Pacific Railroad; 5th Ave.; El Camino Real
  • 41-154Benjamin Franklin Hotel (In San Mateo city)
  • 41-155San Mateo city - That part Bounded by San Mateo Creek; S. Fremont; 4th Ave.; Southern Pacific Railroad.
  • 41-156San Mateo city - That part Bounded by Monte Diablo Ave.; N. Grant; San Mateo Creek; Southern Pacific Railroad.
  • 41-157San Mateo city - That part Bounded by Monte Diablo Ave.; Bayshore Blvd.; San Mateo Creek; N. Grant
  • 41-158San Mateo city - That part Bounded by Monte Diablo Ave.; Huron Ave., N. Norfolk, S. Norfolk, 3rd Ave.; San Mateo Creek; Bayshore Blvd.
  • 41-159San Mateo city - That part Bounded by Monte Diablo Ave., Monte Diablo Ave. extended; City limits; San Mateo Creek, 3rd Ave.; S. Norfolk, N. Norfolk, Huron Ave.
  • 41-160San Mateo city - That part Bounded by San Mateo Creek; City limits; City limits; Bayshore Blvd., 10th Ave., S. Idaho
  • 41-161San Mateo city - That part Bounded by San Mateo Creek; S. Idaho; 10th Ave.; S. Fremont
  • 41-162San Mateo city - That part Bounded by 4th Ave.; S. Fremont; 10th Ave.; Delaware
  • 41-163San Mateo city - That part Bounded by 4th Ave.; Delaware; 10th Ave.; Southern Pacific Railroad
  • 41-164San Mateo city - That part Bounded by 5th Ave.; Southern Pacific Railroad; 10th Ave.; El Camino Real
  • 41-165San Mateo city - That part Bounded by City limits, Eaton Rd., 3rd Ave.; El Camino Real; Aragon Blvd.; Edinburgh, Virginia Ave., Franklin, Fairfax Ave., Harvard Rd.
  • 41-166San Mateo city - That part Bounded by City limits, Harvard Rd., Fairfax Ave., Franklin; Virginia Ave., Edinburgh; Aragon Blvd.; City limits, Alameda de las Pulgas
  • 41-167San Mateo city - That part Bounded by City limits; Alameda de las Pulgas; City limits; City limits
  • 41-168San Mateo city - That part Bounded by Aragon Blvd.; El Camino Real; Hobart Ave., Edinburgh, Avila Way; City limits
  • 41-169San Mateo city - That part Bounded by 10th Ave.; Southern Pacific Railroad; 14th Ave.; El Camino Real
  • 41-170ASan Mateo city - That part Bounded by 10th Ave.; Bayshore Blvd.; Sunnybrae Blvd., 16th Ave.; Southern Pacific Railroad
  • 41-170BSan Mateo city - That part Bounded by 16th Ave., Sunnybrae Blvd.; Bayshore Blvd.; City limits; Southern Pacific Railroad
  • 41-171San Mateo city - That part Bounded by 14th Ave.; Southern Pacific Railroad, City limits, Southern Pacific Railroad; 20th Ave.; El Camino Real
  • 41-172San Mateo city - That part Bounded by Hobart Ave.; El Camino Real; Borel Ave.; Edinburgh
  • 41-173San Mateo city - That part Bounded by City limits, Avila Way; Edinburgh; Borel Ave. ,Shafter, Borel Ave.; Yew
  • 41-174San Mateo city - That part Bounded by City limits, Yew, Borel Ave.,Shafter, Borel Ave.; El Camino Real; 22nd Ave.; Alameda de las Pulgas, Madera Rd., City limits
  • 41-175San Mateo city - That part Bounded by 22nd Ave.; El Camino Real; 25th Ave., Hacienda Ave., 26th Ave.; Alameda de las Pulgas
  • 41-176ASan Mateo city - That part excluding Bay Meadows Race Track Bounded by 20th Ave., City limits; City limits; E. Hillsdale Blvd., Saratoga Dr., Poinsettia Ave., Pacific Blvd., E. Hillsdale Blvd.; Camino Real
  • 41-176BSan Mateo city - That part Bounded by El Hillsdale Blvd., Pacific Blvd., Poinsettia Ave., Saratoga Dr., E. Hillsdale Blvd.; City limits; City limits; El Camino Real
  • 41-176CBay Meadows Race Track (In San Mateo city)
  • 41-177San Mateo city - That part Bounded by 26th Ave., Hacienda Ave., 25th Ave.; El Camino Real; 28th Ave.; Alameda de las Pulgas
  • 41-178Sen Mateo city - That part Bounded by City limits, Madera Rd. Alameda de las Pulgas 28th Ave.; Monterey, City limits
  • 41-179San Mateo city - That part Bounded by City limits, Monterey, 28th Ave.; Alameda de las Pulgas; Laurel Creek; City limits
  • 41-180San Mateo city - That part Bounded by 28th Ave.; Garfield, 29th Ave., Hacienda; Laurel Creek; Alameda de las Pulgas
  • 41-181San Mateo city - That part Bounded by 28th Ave.; El Camino Real; Laurel Creek; Hacienda, 29th Ave., Garfield
  • 41-182ASan Mateo city - That part Bounded by Laurel Creek; El Camino Real; 39th Ave.; Hacienda
  • 41-182BSan Mateo city - That part Bounded by 39th Ave.; El Camino Real; City limits; Camden Ave., 42nd Ave., Edison
  • 41-183San Mateo city - That part Bounded by City limits, Laurel Creek; Hacienda, 39th Ave., Edison, 42nd Ave., Camden Ave.; City limits; City limits
  • 41-184Judicial Township 2 - That part Bounded by Judicial Township line; County line; Judicial Township line, Redwood city limits, Judicial Township line, Redwood city limits; San Carlos city limits, Belmont city limits, Commercial, 1st Ave., Harbor Blvd., Bayshore Hwy. Belmont city limits, San Mateo city limits, 19th Ave., 19th Ave. extended, Seal Creek, San Mateo city limits
  • 41-185Judicial Township 2 - That part Bounded by San Mateo city limits; Seal Creek; 19th Ave. extended, 19th Ave., San Mateo city limits; San Mateo city limits
  • 41-186Judicial Township 2 - That part Bounded by Belmont city limits; Bayshore Hwy.; Harbor Blvd., lst Ave.; Commercial Belmont city limits
  • 41-187Judicial Township 2 - That part comprising small county area surrounded by San Carlos and Belmont cities
  • 41-188Judicial Township 2 - That part excluding Hassler Health Home Bounded by Judicial Township line, Hillsborough town limits, San Mateo city limits; Boundary line of Peninsula Country Club, San Mateo city limits, Belmont city limits, San Carlos city limits, Graceland Ave., Eaton Ave., Clifford Ave., Scenic Dr., Edgewood Rd., Cordilleras Rd., Lakeview Way, Judicial Township line; Judicial Township line; Judicial Township line
  • 41-189Hassler Health Home (In Judicial Township 2)
  • 41-190Judicial Township 2 - Thet part Bounded by San Mateo city limits; San Mateo city limits; Boundary line of Peninsula Country Club; Boundary line of Peninsula Country Club
  • 41-191Judicial Township 2 - That part Bounded by San Carlos city limits, Judicial Township line; Judicial Township line; Judicial Township line; Judicial Township line, Lakeview Way, Cordilleras Rd., Edgewood Rd., Scenic Dr., Clifford Ave., Eaton Ave., Laurel Ave. (Remainder of Judicial Township 2 is in Hillsborough town)
  • 41-192Judicial Township 3: Atherton town: Atherton town - That part Bounded by City limits; City limits; City limits; Watkins Ave., Middlefield Rd., Marsh Rd.
  • 41-193Atherton town - That part Bounded by City limits; Marsh Rd., Middlefield Rd., Watkins Ave., City limits; El Camino Real, Isabella Ave.; Winchester Dr., El Camino Real; City limits
  • 41-194Atherton town - That part Bounded by City limits, El Camino Real; Tuscaloosa Ave., Selby Lane, Atherton Ave.; Atherton Ave., Atherton Ave. extended, City limits; City limits
  • 41-195Atherton town - That part excluding Convent of the Sacred Heart Bounded by El Camino Real, Winchester Dr., Isabella Ave., El Camino Real, City limits; City limits; City limits; Atherton Ave. extended, Atherton Ave., Selby Lane, Tuscaloosa Ave.
  • 41-196Convent of the Sacred Heart (In Atherton town)
  • 41-197Menlo Park city: Menlo Park city - That part Bounded by City limits; City limits; Hamilton Ave., Windermere Ave., Hetch-Hetchy Way, City limits; City limits
  • 41-198Menlo Park city - That part Bounded by Hetch-Hetchy Way, Windermere Ave., Hamilton Ave.; City limits; Bayshore Hwy.
  • 41-199Menlo Park city - That part excluding Roman Catholic Seminary of San Francisco-St. Patrick Seminary and Veterans Administration Hospital Bounded by Hetch-Hetchy Way, Bayshore Hwy.; City limits; El Camino Real; Ravenswood Ave., City limits
  • 41-200Roman Catholic Seminary of San Francisco-St. Patrick Seminary (In Menlo Park city)
  • 41-201Veterans Administration Hospital (In Menlo Park city)
  • 41-202Menlo Park city - That part excluding Corpus Christi Monastery Nuns of the Sacred Order of Preachers Bounded by City limits; Ravenswood Ave.; El Camino Real; City limits
  • 41-203Corpus Christi Monastery Nuns of the Sacred Order of Preachers (In Menlo Park city)
  • 41-204AMenlo Park city - That part Bounded by El Camino Real; Santa Cruz Ave., City limits; Elder Ave., City limits; City limits
  • 41-204BMenlo Park city - That part Bounded by Elder Ave.; City limits; City limits; City limits
  • 41-205Menlo Park city - That part Bounded by El Camino Real; Middle Ave.; University Dr.; Santa Cruz Ave.
  • 41-206Menlo Park city - That part Bounded by El Camino Real; City limits; Yale Rd.; Middle Ave.
  • 41-207Menlo Park city - That part Bounded by University Dr., Middle Ave., Yale Rd.; City limits; City limits, Hermosa Way; Santa Cruz Ave.
  • 41-208Menlo Park city - That part Bounded by Hermosa Way; City limits; City limits; City limits, Santa Cruz Ave.
  • 41-209Redwood City: Redwood City - That part Bounded by Bayshore Hwy., City limits; City limits; City limits, Spring; Chestnut
  • 41-210Redwood City - That part Bounded by Spring, City limits; City limits; Southern Pacific Railroad; Chestnut
  • 41-211Redwood City - That part excluding county area entirely surrounded by Redwood City Bounded by City limits; City limits; Bayshore Hwy.; Chestnut, Southern Pacific Railroad; Redwood Creek, City limits
  • 41-212Redwood City - That part Bounded by City limits; Redwood Creek; Southern Pacific Railroad; Brewster Ave., Bayshore Hwy.
  • 41-213Redwood City - That part Bounded by City limits, Bayshore Hwy.; Brewster Ave.; Southern Pacific Railroad; City limits
  • 41-214Redwood City - That part Bounded by Southern Pacific Railroad; Whipple Ave., El Camino Real, Whipple Ave.; Woodstock Pl., Arlington Rd., Somerset, Edgewood Rd., Warwick; City limits
  • 41-215Redwood City - That part Bounded by Southern Pacific Railroad, City limits; El Camino Real; Whipple Ave.
  • 41-216Redwood City - That part Bounded by City limits; City limits; Orchard Ave., Carlos Ave., Nueva Ave.; Woodside Rd., Murray Ct., Center
  • 41-217Redwood City - That part Bounded by El Camino Real, City limits; Center; Murray Ct., Woodside Rd., Hudson; Redwood Ave.
  • 41-218Redwood City - That part Bounded by Adams, Oak Ave., El Camino Real; Redwood Ave.; Hawes, Oak Ave., King; Roosevelt Ave.
  • 41-219Redwood City - That part Bounded by El Camino Real; Oak Ave., Adams, Roosevelt Ave.; Dickey; Vera Ave.
  • 41-220Redwood City - That part Bounded by El Camino Real; Vera Ave.; Myrtle; Jefferson Ave., Fulton, Jackson Ave.
  • 41-221Redwood City - That part Bounded by El Camino Real; Jackson Ave.; Fulton, Harrison Ave., Grand; James Ave.
  • 41-222Redwood City - That part Bounded by El Camino Real; James Ave.; Elwood; Whipple Ave.
  • 41-223Redwood City - That part Bounded by Elwood; Brewster Ave.; Jeter; Whipple Ave.
  • 41-224Redwood City - That part Bounded by Warwick, Edgewood Rd., Somerset, Arlington Rd., Woodstock Pl.; Whipple Ave.; City limits; City limits
  • 41-225Redwood City - That part Bounded by Jeter; Katherine Ave.; Myrtle; Whipple Ave.
  • 41-226Redwood City - That part Bounded by Elwood; James Ave.; Myrtle, Katherine Ave., Jeter; Brewster Ave.
  • 41-227Redwood City - That part Bounded by Grand, Harrison Ave., Fulton; Jefferson Ave.; Myrtle; James Ave.
  • 41-228Redwood City - That part Bounded by Myrtle; Vera Ave.; Ruby; James Ave.
  • 41-229Redwood City - That part Bounded by Dickey, Roosevelt Ave., King, Oak Ave., Hawes; Redwood Ave.; Fairview Ave., Roosevelt Ave., Taft; Vera Ave.
  • 41-230Redwood City - That part Bounded by Hudson, Woodside Rd., Nueva Ave., Carlos Ave., Orchard Ave.; City limits; City limits, Woodside Rd., Union Ave., Palm Ave., Gordon Redwood Ave.
  • 41-231Redwood City - That part Bounded by Gordon, Palm Ave., Union Ave.; Woodside Rd., City limits; Kentucky Ave., Hampton Ave., Valota Rd.; Redwood Ave.
  • 41-232Redwood City - That part Bounded by Taft, Roosevelt Ave., Fairview Ave., Redwood Ave., Valota Rd.; Hampton Ave., Kentucky Ave., City limits; City limits; City limits, Vera Ave. extended, Vera Ave.
  • 41-233Redwood City - That part Bounded by Ruby; Vera Ave., Vera Ave. extended; City limits; City limits, James Ave.
  • 41-234Redwood City - That part Bounded by Myrtle; James Ave.; City limits; City limits, Whipple Ave.
  • 41-235Judicial Township 3 - That part Bounded by Judicial township line; County line; County line, Bayshore Hwy., Clarke, Myrtle, Pulgas Ave., Weeks, Clarke, Bay Rd., Newbridge, Ralmar Ave., Alberni Ave., Menlo Park city limits, Atherton town limits, Redwood City limits; Redwood City city limits
  • 41-236Judicial Township 3 - That part comprising county area entirely surrounded by Redwood City
  • 41-237Judicial Township 3 - That part Bounded by Judicial Township line; Redwood City limits; Redwood City limits; Judicial Township line
  • 41-238Judicial Township 3 - That part Bounded by Redwood City limits; Redwood City limits; Jefferson Ave., Vista Dr., Lake Blvd., Park Rd., Woodland Park Rd., Lakeview Way; Judicial Township line
  • 41-239Judicial Township 3 - That part Bounded by Judicial Township line, Lakeview Way, Woodland Park Rd., Lake Blvd., Vista Dr.; Jefferson Ave.; Jefferson Ave., California Way; East View Way, Hillcrest Way, Glenloch Way, Sylvan Way
  • 41-240Judicial Township 3 - That part Bounded by Redwood City limits; Woodside Rd.; Boundary line of Menlo Country Club; Boundary line of Menlo Country Club
  • 41-241Judicial Township 3 - That part Bounded by Atherton town limits; Atherton town limits; Alameda de las Pulgas; Redwood City limits, Santa Clara Ave., W. Selby Lane
  • 41-242Judicial Township 3 - That part Bounded by Redwood City limits; Atherton town limits, W. Selby Lane; Santa Clara Ave.; Redwood City limits
  • 41-243Judicial Township 3 - That part Bounded by Southern Pacific Railroad., Middlefield Rd., Berkshire Ave., Southern Pacific Railroad; Atherton town limits Atherton town limits, Redwood City limits; Redwood City limits
  • 41-244Judicial Township 3 - That part Bounded by Southern Pacific Railroad, Bay Rd., Redwood City limits; Marsh Rd., Atherton town limits; Atherton town limits, Southern Pacific Railroad; Berkshire Ave., Middlefield Rd.
  • 41-245Judicial Township 3 - That part Bounded by Redwood City limits, Bay Rd; Southern Pacific Railroad; Redwood City limits
  • 41-246Judicial Township 3 - That part comprising county area located between Menlo Park city and Atherton town, north of El Camino Real and east of Watkins Ave.
  • 41-247Judicial Township 3 - That part comprising county area located between Menlo Park city and Atherton town, north of Laurel and west of Oak Grove Ave.
  • 41-248Judicial Township 3 - That part comprising county area located between Menlo Park city and Atherton town, east of Ringwood Rd. and south of Bay Rd.
  • 41-249Judicial Township 3 - That part comprising county area located between Menlo Park city and Atherton town, north of Bay Rd. and south of Bayshore Hwy.
  • 41-250Judicial Township 3 - That part Bounded by Alberni Ave.; Menalto Ave.; O'Keefe; Menlo Park city limits
  • 41-251Judicial Township 3 - That part Bounded by Alberni Ave., Ralmar Ave., Newbridge, Bay Rd.; University Ave.; Bayshore Hwy., Donohoe; Menalto Ave.
  • 41-252Judicial Township 3 - That part Bounded by Bay Rd., Clarke, Weeks; Pulgas Ave., Myrtle, Clarke, Bayshore Hwy., County line; County line; University Ave.
  • 41-253Judicial Township 3 - That part Bounded by Donohoe, Bayshore Hwy.; University Ave.; County line; Pope, Central Ave.,Gilbert Ave., Menalto Ave.
  • 41-254Judicial Township 3 - That part Bounded by O'Keefe; Menalto Ave.; Gilbert Ave.; Willow Rd., Menlo Park city limits
  • 41-255Judicial Township 3 - That part Bounded by Gilbert Ave.; Central Ave., Pope; County line, Menlo Park city limits; Willow Rd.
  • 41-256Judicial Township 3 - That part Bounded by Coleman Ave.; Willow Rd.; Menlo Park city limits; Menlo Park city limits
  • 41-257Judicial Township 3 - That part comprising county area surrounded by county line and Menlo Park city
  • 41-258Judicial Township 3 - That part Bounded by Atherton town limits, Menlo Park city limits; Menlo Park city limits, Cloud Ave., Valparaiso Ave.; Altschul Ave., Atherton town limits; Atherton town limits
  • 41-259Judicial Township 3 - That part Bounded by Cloud Ave., Menlo Park city limits; County line; San Francisquito Creek; Alpine Rd., Alameda de las Pulgas, Klayton Ave., Altschul Ave. extended, Altschul Ave., Valparaiso Ave.
  • 41-260Judicial Township 3 - That part Bounded by Alameda de las Pulgas, Atherton town limits, Altschul Ave., Altschul Ave. extended, Klayton Ave., Alameda de las Pulgas; Alameda de las Pulgas, Alpine Rd.; San Francisquito Creek; Sandhill Rd., Whiskey Hill Rd., Woodside Rd.
  • 41-261Judicial Township 3 - That part Bounded by Judicial Township line, Lakeview Way, Oakdale Way, Sylvan Way, Glenloch Way, Hillcrest Way, East View Way, Glenmere Way, California Way, Jefferson Ave.; Redwood City limits, Boundary line of Menlo Country Club, Woodside Rd.; Woodside Rd.; Canada Rd., Judicial Township line
  • 41-262Judicial Township 3 - That part Bounded by Judicial Township line; Canada Rd., Woodside Rd., Whiskey Hill Rd., Sandhill Rd., San Francisquito Creek, County line; County line; State Hwy. 55 (Skyline Blvd.), Judicial Township line
  • 41-263Judicial Township 3 - That part Bounded by Judicial Township line; State Hwy. 55 (Skyline blvd.), County line; County line; Judicial Township line
  • 41-264Judicial Township 4: Half Moon Bay, unincorporated: Half Moon Bay, unincorporated - That part Bounded by Frenchman's Creek; 1/2 mile offset line east of and parallel to State Hwy. 56, State Hwy. 105, State Hwy. 56 (Main); Kelly Ave.; County line
  • 41-265Half Moon Bay, unincorporated - That part Bounded by Kelly Ave., State Hwy. 56 (Main), Pilarcitos Creek; Arroyo Leon Creek; Higgins Creek Rd., Higgins Creek Rd. extended; County line
  • 41-266Pescadero, unincorporated Bounded by Pescadero Creek, 1/4 mile offset line west of and parallel to San Gregoria Rd. (State Hwy. 56), A due east line 1/2 mile north of junction of North Rd. and San Gregoria Rd. to San Gregoria Rd., 1/2 mile offset north of and parallel to North Rd.; A due south line to junction of north Rd. and Unnamed road, Unnamed road; Unnamed road, Unnamed road extended, 1/4 mile offset line south of and parallel to Main; Butano Creek, Main, Unnamed Street, Branch of Butano Creek, Butano Creek
  • 41-267Judicial Township 4 - That part outside Half-Moon Bay, unincorporated (See separate map for boundaries of Half-Moon Bay) Bounded by Judicial Township line; Judicial Township line; State Hwy. 105A, 1/4 mile offset line east of and parallel to State Hwy. 56, Frenchman's Creek; County line
  • 41-268Judicial Township 4 - That part outside Half-Moon Bay, unincorporated (See separate map for boundaries of Half-Moon Bay) Bounded by State Hwy. 105A; Judicial Township line, Purisima Creek; Judicial Township line, Tunitas Creek; County line, Higgins Creek Rd. extended, Higgins Creek Rd., Arroyo Leon Creek, State Hwy. 56 (Main), State Hwy. 105A
  • 41-269Judicial Township 4 - That part outside Pescadero, unincorporated (See separate map for boundaries of Pescadero) Bounded by Judicial Township line; Judicial Township line, County line; County line; County line, Tunitas Creek
  • 41-270Judicial Township 5, outside Burlingame and Milbrae cities and Hillsborough town: Judicial Township 5 - That part of San Francisco Municipal Airport (Mills Field) comprising three non-adjacent areas north of Millbrae city
  • 41-271Judicial Township 5 That part comprising county area located between Burlingame and Millbrae cities east of Skyline Blvd.
  • 41-272Judicial Township 5 - That part excluding Convent of our Lady of Mercy Motherhouse and Novitiate of the Sisters of Mercy Bounded by Burlingame city limits; Burlingame city limits; Judicial Township line; Hillsborough town limits, Judicial Township line, Burlingame city limits
  • 41-273Convent of our Lady of Mercy Motherhouse and Novitiate of the Sisters of Mercy (In Judicial Township 5)
  • 41-274Judicial Township 5 - That part Bounded by Judicial Township line; County line; Judicial Township line, Burlingame city limits; Burlingame city limits, Judicial Township line (Remainder of Judicial Township 5 is in Burlingame and Millbrae cities and Hillsborough town)

Wildfire, 1992 to 2020

1,190 fires

Every wildfire the federal occurrence database records inside this county: 1,190 of them, burning about 88,628 acres. 34 started naturally and 88 were recorded as arson. Each settlement page carries the fires within five miles of it.

Reported cause Fires
Missing data/not specified/undetermined655
Equipment and vehicle use188
Arson/incendiarism88
Smoking74
Misuse of fire by a minor57
Debris and open burning37
Natural34
Recreation and ceremony30
Power generation/transmission/distribution25
Other causes1
Fireworks1

The five largest, by the area the report gives. None of them was recorded as arson.

DateCause SizeReported by Name on the report
16 August 2020Missing data/not specified/undetermined86,509 acresSan Mateo-Santa Cruz UnitCZU AUG LIGHTNING
8 August 1993Missing data/not specified/undetermined300 acresSan Mateo-Santa Cruz UnitSAN BRUNO MNT. #5
22 June 2008Missing data/not specified/undetermined300 acresSan Mateo-Santa Cruz UnitQUARRY CZU5708
21 October 1996Missing data/not specified/undetermined220 acresSan Mateo-Santa Cruz UnitSAN BRUNO # 4
5 July 1993Missing data/not specified/undetermined85 acresSan Mateo-Santa Cruz UnitSAN BRUNO MTN. #4
14 October 2001Equipment and vehicle use54 acresSan Mateo-Santa Cruz UnitPORTOLA
21 July 1996Missing data/not specified/undetermined50 acresSan Mateo-Santa Cruz UnitSAN BRUNO #2
7 September 2013Missing data/not specified/undetermined41 acresSan Mateo-Santa Cruz UnitCHESTNUT 2

Every settlement page carries the fires within five miles of it - see the settlement index below.

Storms, 1958 to 2026

60 of 164 shown

The NOAA Storm Events Database holds 164 reports for this county, causing 2 deaths, 20 injuries and about $13,931,090 in recorded property damage. Each settlement page carries the reports that name it.

Kind of event Reports
Flood64
Flash Flood33
Thunderstorm Wind20
Debris Flow18
Heavy Rain12
Hail9
Tornado4
Lightning4

The most serious of them, by death, then injury, then recorded damage. The accounts are quoted exactly as the forecast office filed them.

WhenEvent Place namedHarm What the report says
January 1998Heavy RainSan Mateo1 killedheavy rain contributed to auto accident
February 1997Flash FloodLoma Mar1 killedno account filed
January 1998Heavy RainSan Mateo12 hurtrain slick roads caused several auto accidents
March 2012Heavy RainPacifica5 hurt, $50,000Two accidents shut down Highway 1 for brief periods. One occurred on March 14 which was a head-on crash just south of Devil's Slide. Two sedans were involved with minor injuries to the two drivers. The other occurred on March 16 when two trucks collided at 10:45 am west of the turnoff for Ox Mountain landfill. Three riders suffered minor cuts and bruises.
October 2009Heavy RainMontara3 hurtAt 7:47 a.m. PDT the California Highway Patrol responded to a three car collision on Highway 1 at Devil's Slide. Heavy rain and strong winds were a contributing factor of the crash. A 74-year-old woman lost her life in the accident.
January 2006FloodCountywide$5,000,000no account filed
December 2005FloodCountywide$5,000,000no account filed
February 2000Heavy RainColma$2,000,000The roof of a Home Depot collapsed due to the accumulation of heavy rain flooding the interior of the stor with 6 inches of rain and exposing the interior to continuing rain.
March 2005Tornado (F1)South San Francisco$800,000An F1 tornado touched down in South San Francisco damaging approximately 60 structures.
December 2014Flash FloodAtherton$500,000Heavy rain caused flooding of several trailer parks in Redwood City. The combination of standing water and a local creek flooding resulted in the need for residents to be evacuated from the Le Mar Trailer Park and RC Mobile Home Park on E Bayshore in Redwood City. 50 mobile homes were evacuated and residents were sent to shelters.
February 1998Flash FloodPescadero$200,000no account filed
October 2009Heavy RainMillbrae$100,000This powerful rainstorm overwhelmed pipes and manholes in San Mateo, San Carlos and Millbrae causing over 127,000 gallons of untreated sewage to flow into the streets and creeks. Over 55,000 gallons made it all the way to the San Francisco Bay.
January 2008Flash FloodMoss Beach$100,000Neighborhoods in Moss Landing and Montara were flooded and some cars submerged after several hours of drenching heavy rains. Rising flood waters along Pescadero Creek Road foreced about 18 residents out of their homes.
October 2004Thunderstorm WindEast Palo Alto$50,000no account filed
January 2010Flood(Sql)San Carlos Arpt$30,000Heavy rain caused Harbor Boulevard at the underpass of State Route 82 to flood submerging a car to the base of its windows. The road was barricaded to stop anyone else from driving into the water. Also in Belmont, a car repair business evacuated its building as 3 inches of water covered the floor. Belmont Creek was to blame.
April 1958Tornadonot stated$25,000no account filed
January 2010FloodPescadero$20,000Rescuers pulled six people out of cars that stalled in 3-foot water in Pescadero.
January 2010FloodLadera$15,000Heavy rain led to basement flooding of the Casa Zapata in Stern Hall, a dormitory on Stanford University in Palo Alto. Study rooms and the computer cluster were affected by the flooding.
January 2010FloodSan Carlos$15,000Heavy rain caused Pulgas Creek to overflow its banks and flood some classrooms at Central Middle School in San Carlos. Also, several streets were blocked off in low-lying areas just west of US Highway 101, including Taylor Avenue in San Carlos and parts of Rolison Road in Redwood City. In Atherton, officials closed March Road from Middlefield Road to Fair Oaks Avenue because a creek had begun to flood.
December 2018Thunderstorm WindAtherton$10,000A tree fell on a house in the early morning in Atherton. A pine tree fell through the roof and into a bedroom. No injuries https://www.sfgate.com/news/bayarea/article/Nobody-Injured-Christmas-Morning-After-Tree-Falls-13490931.php.
February 2009FloodPescadero$8,000Pescadero Creek Road flooded stranding two vehicles from many hours.
December 2014Flash FloodSan Bruno$5,000Significant flash flooding on Interstate 280 was reported by the public. This coincided with a nearby observation of 0.90 of rainfall in 30 minutes at San Bruno Mountain. Traffic was significantly impacted and slowed or stopped during the height of morning rush hour.
December 2014Flash FloodPedro Vly$500Public reports water covering roadway and parking lots along San Pedro Creek.
December 2012Flash FloodLoma Mar$500The water level on Corralitos Creek gauge at Freedom reached 11.61 feet. At this location, minor flooding begins above 11.5 feet.
December 2012Flash FloodPescadero$500The water level on the Pescadero Creek at Pescadero gauge reached 14.56 feet. Flooding begins at this location at levels above 12.0 feet. This is the peak level of the flash flood event.
December 2012Flash FloodPescadero$500The water level on the Pescadero Creek at Pescadero gauge reached 13.23 feet. At this location, flooding occurs with levels above 12.0 feet.
December 2012Flash FloodPescadero$500The water level on the Pescadero Creek at Pescadero gauge reached 14.47 feet. Minor flooding begins at levels above 12.0 feet at this location.
December 2012Flash FloodPescadero$500Levels at the gauge on Pescadero Creek near Pescadero reached 12.86 feet. Minor flooding on the Creek at this location will begin with levels above 12.0 feet.
March 1986Tornado (F0)not stated$30no account filed
October 2025Thunderstorm WindButano Park$10A strong thunderstorm cell touched down just south of Ano Nuevo State Park at 4:23 PM. Video from a farm near the location showed damage to structures, sparking speculation of a possible tornado. Subsequently, an NWS team conducted a storm survey at the site. The team identified damage consistent with straight line winds. Damage was noted from the coast, just south of Ao Nuevo State Park, eastward about 3/4 of a mile. This damage included, but not limited to, a hoop house visqueen cover being torn off, structural damage to two hoop houses, a large water storage tank being transported over a 1/4 mile, and moderately large diameter coastal cypress trees being snapped. There was one item seen transported counter to straight line wind flow and these were determined to have been caught up in very small scale temporary terrain driven rotation. There is no indication in the damage field of tornadic activity. While the radar signature did show rotation at elevation while approaching the coast, it appears to collapse as it comes ashore, lending itself to thunderstorm outflow and a straight line wind event.
March 2024FloodBelmont$10A van went off the roadway near a large amount of flooding in lanes 3 and 4 of Interstate 280 at the Bunker Hill onramp.
March 2024Hail(Sql)San Carlos Arpt$10Approximate location. Pea-sized hail was reported on by various parties on social media.
February 2024Thunderstorm WindSan Carlos$10Three inch tree limbs were broken, and power lines were downed.
January 2017HailHalf Moon Bay$10Spotter reported pea sized hail in Half Moon Bay. Other reports around San Mateo county as well.
January 2017HailSan Mateo$10Pea sized hail reported in Highlands Baywood Park.
January 2026FloodBurlingame-One lane of northbound Interstate 280 was flooded at Trousdale Drive.
January 2026Flash Flood(Sql)San Carlos Arpt-The gauge along Belmont Creek at the Harbor Boulevard and Old County Road intersection reported major flooding, up to a stage of 5.26 feet.
February 2025FloodBaden-Four feet of standing water was reported on the offramp from southbound Interstate 280 to Westborough Boulevard.
February 2025FloodSan Bruno-All lanes of northbound Interstate 280 right before the San Bruno Avenue offramp were flooded.
December 2025Flash Flood(Sql)San Carlos Arpt-The gauge along Belmont Creek at the Harbor Boulevard and Old County Road intersection reported major flooding, up to a stage of 5.64 feet.
December 2025FloodEdgemar-Vehicles were stuck in floodwaters on the onramp from Hickey Boulevard to southbound Interstate 280.
December 2025FloodHillsborough-Flooding was reported in the slow lane of northbound Interstate 280 south of Hayne Road.
December 2025Thunderstorm WindPedro Vly-The PG&E station on North Peak Access Road reported a gust of 67 mph.
December 2025Thunderstorm WindColma-An Ambient Weather station reported a gust of 60.6 mph.
December 2025Thunderstorm Wind(Sfo)Sfo Intl Arpt-San Francisco International Airport reported a peak wind gust of 73 mph at 2:56 AM. Wind gusts above 58 mph were noted between 2:40 and 2:59 AM.
December 2025Thunderstorm WindEl Granada-Broadcast media reported that a tree fell in the El Granada area, which led to additional power lines and trees coming down. 4 vehicles were damaged. Additionally, a tree fell on an apartment complex causing exterior damage. Location estimated. Time estimated based on radar and surrounding wind gust observations.
December 2025Thunderstorm WindHalf Moon Bay Arpt-Half Moon Bay Airport reported a gust of 62 mph before the station lost power and stopped reporting.
December 2025FloodSterling Park-Roadway flooding was reported on northbound Interstate 280 at John Daly Boulevard.
December 2025FloodDaly City-Roadway flooding was reported on the offramp from northbound US Highway 101 to the Candlestick Point area.
December 2025FloodWoodside-Several inches of water were reported on southbound Interstate 280 at Woodside Road.
November 2025Flood(Sql)San Carlos Arpt-Flooding was reported in the number 1, 2, and 3 lanes of southbound US Highway 101 at Holly Street, and in the number 1 and 2 lanes of northbound US Highway 101 between California Highway 92 and Ralston Street.
November 2025FloodSan Bruno-Flooding was reported on southbound US Highway 101 north of Millbrae.
November 2025FloodColma-Roadway flooding was reported at the offramp from southbound Interstate 280 at Eastmoore Boulevard. The offramp was completely flooded with 12 inches of water on the road.
November 2025FloodMartins Beach-The northbound and southbound lanes of California Highway 1 at Ponitas Bridge were flooded.
November 2025FloodTanforan-Three to six inches of water covered Interstate 280 near Sneath Lane.
March 2024FloodBelmont-Flooding on the offramp from northbound Interstate 280 to Bunker Hill Road.
February 2024FloodBaden-Flooding was reported near the southbound Interstate 280/Westborough Boulevard offramp.
December 2024Thunderstorm WindSharp Park-A CWOP site in Pacifica (AE6DC-5) reported a 97 mph gust at 6:20 AM Saturday.
December 2024FloodEast Palo Alto-Northbound US Highway 101 was flooded at the Willow Road offramp.
December 2024FloodColma-All three lanes of northbound State Highway 35 flooded south of the connector to State Highway 1.

Mines and quarries

127 recorded

The Survey's mineral resources record lists 127 workings inside this county. 58 still produce and 69 are closed or unrecorded. Each settlement page carries the workings within five miles of it.

Commodity Workings
Stone, Crushed/Broken49
Stone20
Sand and Gravel, Construction13
Gold12
Calcium9
Silver6
Mercury5
Gypsum-Anhydrite5
Lead, Zinc3
Magnesite3
Salt3
Manganese2
Gemstone2
Granite1

The least common of them first, because a county's hundredth gravel pit says nothing its first ten did not.

Where SiteCommodity StatusRecorded
Ideal Cement Co.Limestone, Dimension, Stone, Crushed/BrokenPast Producer
Ideal Cement CompanyLimestone, General, ClayProducer
J. M. MacdonoughGold, Lead, SilverUnknown
J.M. Macdonough RanchGold, Silver, LeadPast ProducerGold
MiguelGraniteProducer
Redwood City OperationHaliteProducer
Unnamed LocationGold, Silver, PotassiumProducer
Unnamed LocationGold, Potassium, SilverPast Producer
Pascadero BeachGemstoneProducer
Pascadero BeachGemstonePast Producer
Redwood Material Co.ManganeseProducer
Redwood Material Co.ManganesePast Producer
Marine Magnes Div.MagnesiteProducer
Marine Magnes Div.MagnesitePast Producer
Marine Magnesium Co. Seawater PlantMagnesiteProducer
Redwood City OperationSaltPast Producer
Redwood City PlantSaltProducer
Redwood City PlantSaltProducer
South San Fran. Land & Imp. Co.Silver, Lead, ZincProducer
South San Fran. Land & Imp. Co.Silver, Lead, ZincPast Producer
South San Francisco Land & Improvement CompanySilver, Lead, ZincPast Producer1919
California Valley Gypsum MineGypsum-AnhydriteProducer
ChallengeMercuryPast Producer1955
Emerald LakeMercuryProducer
Farm Hill Cinnabar PropertyMercuryUnknown
Farm Hill No 2MercuryPast Producer
Kaiser GypsumGypsum-AnhydriteProducerSedimentary
Kaiser GypsumGypsum-AnhydritePast Producer
Redwood Quicksilver ProspectMercuryUnknown
Unnamed LocationGypsum-AnhydriteProducerSedimentary
Unnamed LocationGypsum-AnhydritePast Producer
Durham RanchGold, SilverPast ProducerGold
Durham RanchGold, SilverUnknown
Calif. AggregatesCalciumPast Producer
HilltopCalciumProducer
HilltopCalciumPast Producer
Marks Materials Inc.CalciumProducer
RockawayCalciumProducer
RockawayCalciumPast Producer
San Francisco Bay DredgeCalciumProducer
Skyline QuarryCalciumProducer
Skyline QuarryCalciumPast Producer
Black MountainGoldPast Producer
Black Mtn.GoldPast ProducerGold
Deniston PeakGoldPast ProducerGold
Dennison PeakGoldProspect
Unnamed LocationGoldProducer
Unnamed LocationGoldPast Producer
Brumley-Donaldson Co.Sand and Gravel, ConstructionPast Producer
Brumley-Donaldson Co.Sand and Gravel, ConstructionPast Producer
CanadaStone, Sand and Gravel, ConstructionPast ProducerSedimentary
CanadaStone, Sand and Gravel, ConstructionPast Producer
DuncanSand and Gravel, ConstructionPast ProducerSedimentary
DuncanSand and Gravel, ConstructionPast Producer
Granite RockSand and Gravel, ConstructionPast ProducerSedimentary
Granite RockSand and Gravel, ConstructionPast Producer
Pacific Coast Aggregates, Inc.Sand and Gravel, ConstructionPast Producer
PilarcitosSand and Gravel, ConstructionPast Producer
Pilarcitos QuarrySand and Gravel, ConstructionProducer
RockawaySand and Gravel, ConstructionPast Producer
Sand PitSand and Gravel, ConstructionUnknown
Brisbane QuarryStoneProducer
Britton RanchStoneProducer
Britton RanchStonePast Producer
El GranadaStoneProducer
El GranadaStonePast Producer
Langley Hill QuarryStoneProducer
Pacifica Quarry and MillStoneProducer
Pilarcitos #138StoneProducer
QuarryStoneProducer
QuarryStoneProducer
QuarryStoneProducer
QuarryStonePast Producer
QuarryStoneUnknown
QuarryStonePast Producer
QuarryStonePast Producer
QuarryStoneUnknown
Unnamed LocationStoneProducer
Unnamed LocationStonePast Producer
ArchibaldStone, Crushed/BrokenPast Producer
BrisbaneStone, Crushed/BrokenProducerSedimentary
Canada Road NorthStone, Crushed/BrokenProducer
Canada Road NorthStone, Crushed/BrokenPast Producer
Canada Road SouthStone, Crushed/BrokenProducer
Canada Road SouthStone, Crushed/BrokenPast Producer
CaseyStone, Crushed/BrokenProducer
CaseyStone, Crushed/BrokenPast Producer
CausewayStone, Crushed/BrokenProducerSedimentary
CausewayStone, Crushed/BrokenPast Producer
Daly SStone, Crushed/BrokenProducerSedimentary
Daly SStone, Crushed/BrokenPast Producer
Edgewood Quarry and MillStone, Crushed/BrokenProducer
Edgewood RoadStone, Crushed/BrokenProducerSedimentary
GardnerStone, Crushed/BrokenProducer
GardnerStone, Crushed/BrokenPast Producer
H. P. A.Stone, Crushed/BrokenProducerSedimentary
H. P. A.Stone, Crushed/BrokenPast Producer
Healy-TibbittsStone, Crushed/BrokenProducerSedimentary
Healy-TibbittsStone, Crushed/BrokenPast Producer
Holy CrossStone, Crushed/BrokenProducerSedimentary
Holy CrossStone, Crushed/BrokenPast Producer
Langley Hill QuarryStone, Crushed/BrokenProducer
Macco-Morrison Knudston Costr. Co.Stone, Crushed/BrokenProducer
Macco-Morrison Knudston Costr. Co.Stone, Crushed/BrokenPast Producer
Marks MaterialsStone, Crushed/BrokenProducer
Middle RoadStone, Crushed/BrokenProducer
Middle RoadStone, Crushed/BrokenPast Producer
MiguelStone, Crushed/BrokenPast Producer
North RoadStone, Crushed/BrokenProducer
North RoadStone, Crushed/BrokenPast Producer
Pescadero QuarryStone, Crushed/BrokenProducer
Pilarcitos Quarry and Plant No. 138Stone, Crushed/BrokenProducer
San Mateo Development Co.Stone, Crushed/BrokenProducerSedimentary
San Mateo Development Co.Stone, Crushed/BrokenProducerSedimentary
San Mateo Development Co.Stone, Crushed/BrokenPast Producer
San Mateo Development Co.Stone, Crushed/BrokenPast Producer
South RoadStone, Crushed/BrokenProducerSedimentary
South RoadStone, Crushed/BrokenPast Producer
South S. F. Land & Improvement Co.Stone, Crushed/BrokenProducer
South S. F. Land & Improvement Co.Stone, Crushed/BrokenPast Producer
Southern Pacific Co.Stone, Crushed/BrokenProducerSedimentary
Southern Pacific Co.Stone, Crushed/BrokenPast Producer
Splivalo & JohnsonStone, Crushed/BrokenProducer
Splivalo & JohnsonStone, Crushed/BrokenPast Producer
TysonStone, Crushed/BrokenProducer
TysonStone, Crushed/BrokenPast Producer
VasquezStone, Crushed/BrokenPast Producer

Every populated place in the county

107

Named settlements recorded in the Geographic Names Information System, each with the topographic sheets covering it. Villages, hamlets and abandoned places alike. Each is shown with the nearest named watercourse or landform and the survey quadrangle it falls on.

The vanished settlements of San Mateo County: the places named above that are no longer on the map.

Provenance

  • Topographic sheets. USGS Historical Topographic Map Collection, county index, measured from the bulk metadata.
  • Fire insurance maps. Library of Congress Sanborn collection, faceted to this county.
  • Photographs. Each place queried individually against the Library of Congress Prints and Photographs search.
  • Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
  • Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.
  • Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.