San Martin, California
24 topographic sheets cover this place, the earliest surveyed in 1917 and the latest in 1978. It stands in the South Santa Clara Valley census division. It lies in ZIP code area 95046. It stands on San Martin Creek. The Survey maps it on the Gilroy quadrangle. 7,008 people lived here at the 2020 count. It stands 289 feet above sea level.
Then and now
1917 to 1978The same ground, surveyed 61 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.


Population over time
2 figuresSan Martin fell from 7,027 to 7,008 between 2010 and 2020. These are the recorded population figures Wikidata holds for this place, reached through the Geographic Names Information System number this page is keyed on rather than by name, so they belong to this place and not to another of the same name. Most are census counts, but not all are: an early figure may be a founding or settlement estimate, and an estimate published within five years of a census is left out. The change column is computed, and is left blank where more than 20 years separate a figure from the one before it, because a gap that long is not a change between two counts.
| Year | People | Change |
|---|---|---|
| 2010 | 7,027 | |
| 2020 | 7,008 | -19 (-0%) |
Topographic sheets covering this place
10 surveys from 24 printed sheetsMatched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.
- 1917 USGS Morgan Hill quadrangle1:62500, 5 printings
- 1939 USGS Morgan Hill quadrangle1:62500, 2 printings
- 1941 USGS Morgan Hill quadrangle1:62500
- 1947 USGS San Jose quadrangle1:250000
- 1955 USGS Gilroy quadrangle1:24000, 7 printings
- 1956 USGS San Jose quadrangle1:250000
- 1962 USGS San Jose quadrangle1:250000, 4 printings
- 1966 USGS San Jose quadrangle1:250000
- 1973 USGS Gilroy quadrangle1:24000
- 1978 USGS San Jose quadrangle1:100000
Fires near this place
837 since 1992Regional context, not property-specific evidence. The federal wildfire occurrence database lists 837 fires within 5 miles of San Martin between 1992 and 2020, burning about 8,681 acres in total. 4 started naturally. 50 were recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.
| Reported cause | Fires |
|---|---|
| Missing data/not specified/undetermined | 372 |
| Equipment and vehicle use | 289 |
| Arson/incendiarism | 50 |
| Misuse of fire by a minor | 38 |
| Smoking | 34 |
| Debris and open burning | 26 |
| Power generation/transmission/distribution | 12 |
| Recreation and ceremony | 10 |
| Natural | 4 |
| Fireworks | 1 |
| Other causes | 1 |
The most recent of them, most recent first, with the day each was reported and the service that recorded it.
| Date | Cause | Size | Reported by | Name on the report |
|---|---|---|---|---|
| 9 September 2000 | Equipment and vehicle use | 9.0 acres | Santa Clara Unit | PORTERA |
| 9 September 1999 | Missing data/not specified/undetermined | 2.0 acres | Santa Clara Unit | ELAM |
| 9 September 1993 | Equipment and vehicle use | 2.0 acres | Santa Clara Unit | MASTEN #13 |
| 8 September 2011 | Equipment and vehicle use | 6.0 acres | Santa Clara Unit | KERN |
| 8 September 2001 | Equipment and vehicle use | under an acre | Santa Clara Unit | TOLL |
| 8 September 1996 | Missing data/not specified/undetermined | under an acre | Santa Clara Unit | PIAZZA # 3 |
| 8 September 1995 | Missing data/not specified/undetermined | under an acre | Santa Clara Unit | MASTEN CENTR DIVIDE |
| 8 September 1993 | Equipment and vehicle use | 2.0 acres | Santa Clara Unit | MASTEN #12 |
Settlements close enough to share some of these fires:
Mines and quarries near this place
10 of 12 shownRegional context, not property-specific evidence. The federal mineral resources record lists 12 workings within 5 miles of San Martin: 6 occurrences, 4 past producers, 1 producer, 1 prospect. 1 still produces. What was taken out: Stone, Crushed/Broken, Sand and Gravel, Construction, Chromium, Gemstone. Distance is straight-line from the map coordinates, so a quarry counted here may appear on a neighbouring settlement's page as well.
| Where | Site | Commodity | Status | Recorded |
|---|---|---|---|---|
| Cochrane | Magnesite | Prospect | ||
| Laurel Lake Ranch | Chromium | Past Producer | ||
| Laurel Lake Ranch Deposits | Chromium | Past Producer | 1917, 1920 | |
| Unnamed Location | Gemstone | Occurrence | ||
| Unnamed Location | Gemstone | Occurrence | ||
| Blenda | Sand and Gravel, Construction | Producer | ||
| Sand & Gravel Pit | Sand and Gravel, Construction | Past Producer | Sedimentary | |
| Sand & Gravel Pit | Sand and Gravel, Construction | Past Producer | ||
| Unnamed Location | Stone, Crushed/Broken | Occurrence | ||
| Unnamed Location | Stone, Crushed/Broken | Occurrence |
Storms near this place
2 since 2014Regional context, not property-specific evidence. The National Weather Service names San Martin in 2 storm reports between 2014 and 2024: 2 flood. No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.
| When | Event | Place named | Harm | What the report says |
|---|---|---|---|---|
| February 2024 | Flood | San Martin | - | Southbound US Highway 101 at the truck scales near San Martin was reported to be breaking apart in the slow lane. |
| February 2014 | Flood | San Martin | - | Flooding reported at the intersection of San Martin Avenue and Monterey Highway in Gilroy. |
Nearest settlements
The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.
| Map | Place | Distance | Sheets |
|---|---|---|---|
| Rucker | 2.3 miles | 24 | |
| Tennant (historical) | 2.4 miles | 23 | |
| Morgan Hill | 3.9 miles | 22 | |
| Lonoke | 4.4 miles | 24 | |
| Madrone | 5.6 miles | 22 | |
| Gilroy | 5.9 miles | 24 | |
| Old Gilroy | 7.4 miles | 29 | |
| Madrone Soda Springs (historical) | 7.6 miles | 21 |
Elsewhere
Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.
| Wikipedia article on San Martin | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q1974441 | The structured record the population and elevation above come from. Public domain (CC0). |
Provenance
This settlement is recorded in the Geographic Names Information System as feature 277595. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.
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.









