Riverside, California
43 topographic sheets cover this place, the earliest surveyed in 1901 and the latest in 1983. It stands in the Riverside census division. It lies in ZIP code area 92506. It lies near Pachappa Hill. The Survey maps it on the Riverside West quadrangle. 314,998 people lived here at the 2020 count. It stands 827 feet above sea level.
Then and now
1901 to 1983The same ground, surveyed 82 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.


Compare 1901 against another survey:
On record in Riverside
Buildings and businesses the archive holds for this place. Each opens its own page, with the source record it came from.
On the National Register 12 of 25 shown
Harada HouseNational Historic Landmark · listed 1977
Mission InnNational Historic Landmark · listed 1971
Administration Building, Sherman Institutelisted 1980
All Souls Universalist Churchlisted 1978
Arlington Branch Library and Fire Halllisted 1993
William Childs Houselisted 1999
Community Settlement Houselisted 2017
Federal Post Officelisted 1978
First Church of Christ, Scientistlisted 1992
First Congregational Church of Riversidelisted 1997
Heritage Houselisted 1973
Old YWCA Buildinglisted 1982
Population over time
2 figuresRiverside grew from 303,871 to 314,998 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 | 303,871 | |
| 2020 | 314,998 | +11,127 (+4%) |
Topographic sheets covering this place
16 surveys from 43 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.
- 1901 USGS Elsinore quadrangle1:125000, 8 printings
- 1901 USGS Riverside quadrangle1:62500, 6 printings
- 1901 USGS Southern California Sheet No. 1 quadrangle1:250000, 6 printings
- 1904 USGS Southern California Sheet No. 1 quadrangle1:250000, 2 printings
- 1942 USGS Riverside quadrangle1:62500, 2 printings
- 1942 USGS Riverside and Vicinity quadrangle1:31680, 2 printings
- 1943 USGS Riverside quadrangle1:62500
- 1947 USGS Santa Ana quadrangle1:250000
- 1949 USGS Santa Ana quadrangle1:250000
- 1953 USGS Riverside West quadrangle1:24000, 2 printings
- 1956 USGS Santa Ana quadrangle1:250000
- 1959 USGS Santa Ana quadrangle1:250000, 3 printings
- 1960 USGS Santa Ana quadrangle1:250000, 2 printings
- 1965 USGS Santa Ana quadrangle1:250000
- 1967 USGS Riverside West quadrangle1:24000, 4 printings
- 1983 USGS Santa Ana quadrangle1:100000
Fires near this place
1,329 since 1992Regional context, not property-specific evidence. The federal wildfire occurrence database lists 1,329 fires within 5 miles of Riverside between 1992 and 2020, burning about 8,873 acres in total. 2 started naturally. 163 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 | 701 |
| Equipment and vehicle use | 212 |
| Arson/incendiarism | 163 |
| Misuse of fire by a minor | 103 |
| Smoking | 79 |
| Debris and open burning | 39 |
| Recreation and ceremony | 15 |
| Power generation/transmission/distribution | 12 |
| Railroad operations and maintenance | 3 |
| Natural | 2 |
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 2018 | Missing data/not specified/undetermined | under an acre | California Department of Forestry & Fire Protection | CLAY |
| 9 September 2018 | Missing data/not specified/undetermined | under an acre | California Department of Forestry & Fire Protection | not named |
| 9 September 2018 | Missing data/not specified/undetermined | under an acre | California Department of Forestry & Fire Protection | SKYLOFT DR JRPV |
| 9 September 1995 | Equipment and vehicle use | under an acre | Riverside Unit | LOCAL 15179 |
| 9 September 1995 | Equipment and vehicle use | under an acre | Riverside Unit | LOCAL |
| 8 September 2020 | Missing data/not specified/undetermined | under an acre | Riverside Unit | EL PALOMINO DR JRPV |
| 8 September 2002 | Equipment and vehicle use | under an acre | Riverside Unit | LOCAL |
| 8 September 2000 | Equipment and vehicle use | under an acre | Riverside Unit | LOCAL FIRE |
Settlements close enough to share some of these fires:
Mines and quarries near this place
10 of 30 shownRegional context, not property-specific evidence. The federal mineral resources record lists 30 workings within 5 miles of Riverside: 25 past producers, 4 producers, 1 prospect. 4 still produce. What was taken out: Stone, Crushed/Broken, Sand and Gravel, Construction, Silica, Limestone, General. 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 |
|---|---|---|---|---|
| Hancock Clay Deposit | Clay | Past Producer | ||
| New City Quarry | Limestone, General, Dolomite | Past Producer | ||
| Ormand Quarry | Granite | Producer | Surface | |
| Pit | Granite | Producer | ||
| Rubidoux Hill Quarry | Stone, Dimension | Past Producer | ||
| Spicer Silica Property | Feldspar, Silica | Prospect | ||
| Stone & Alexander Quarry | Feldspar, Silica | Past Producer | ||
| Unnamed Quarry | Stone, Dimension | Past Producer | ||
| Magstone Products | Limestone, General | Past Producer | Sedimentary | |
| Riverside Cement Co Crestmore Qurry | Limestone, General | Past Producer | Sedimentary |
Storms near this place
15 since 1996Regional context, not property-specific evidence. The National Weather Service names Riverside in 15 storm reports between 1996 and 2025: 4 wildfire, 3 heavy rain, 2 flood, 2 thunderstorm wind. The reports record 2 injuries. 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 |
|---|---|---|---|---|
| April 2002 | Wildfire | Riverside | 1 hurt, $50,000 | no account filed |
| February 2000 | Heavy Rain | Riverside | 1 hurt, $10,000 | no account filed |
| February 2001 | Thunderstorm Wind | Riverside | $15,000 | no account filed |
| February 2004 | Flash Flood | Riverside | $10,000 | no account filed |
| August 2014 | Lightning | Riverside | $1,000 | A spotter reported lightning struck and ignited fires in two palm trees near the community college. The fires were put out. Lightning also struck the technology building on campus, knocking out power. |
| February 2025 | Flood | Riverside | - | Received a report of a flooded roadway. |
| February 2024 | Heavy Rain | Riverside | - | Heavy rain fell across Riverside County from late in the evening on February 19 through the morning on February 21. The following are the heaviest rain reports from the Inland Empire:||Inland Empire:|Norco (650'): 1.14|Prado Dam (460'): 1.06. |
| April 2006 | Funnel Cloud | Riverside | - | A funnel cloud was spotted near hwy 60 and the 215 freeway. |
| August 2000 | Flash Flood | Riverside | - | Very heavy rain, up to 6 tenths of an inch in just 45 minutes, fell across parts of the county. Many streets flooded and washes running, especially route 62 through Twentynine Palms. Small hail also reported along route 62 near Copper Mountain College. |
| January 2001 | Heavy Rain | Riverside | - | no account filed |
| August 2001 | Wildfire | Riverside | - | no account filed |
| February 1998 | Flood | Riverside | - | no account filed |
| August 1998 | Thunderstorm Wind | Riverside | - | no account filed |
| December 1998 | Wildfire | Riverside | - | no account filed |
| May 1996 | Wildfire | Riverside | - | no account filed |
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 |
|---|---|---|---|
| Pachappa | 0.7 miles | 43 | |
| Magnolia Avenue | 1.2 miles | 43 | |
| Casa Blanca | 1.4 miles | 43 | |
| Prenda | 2.2 miles | 43 | |
| Riverside Junction | 2.9 miles | 45 | |
| Rubidoux | 3.0 miles | 43 | |
| Arlington | 3.5 miles | 43 | |
| Arlington Station | 3.6 miles | 43 |
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 Riverside | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q49243 | 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 1661315. 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.















