Foresthill, California
33 topographic sheets cover this place, the earliest surveyed in 1891 and the latest in 2000. It stands in the Foresthill-Back Country census division. It lies in ZIP code area 95631. It lies near Smiths Point. The Survey maps it on the Foresthill quadrangle. 1,692 people lived here at the 2020 count. It stands 3,228 feet above sea level.
Then and now
1891 to 2000The same ground, surveyed 109 years apart. Drag the handle to wipe between them. Both sheets are United States Geological Survey originals; neither has been altered.


Compare 1891 against another survey:
Population over time
2 figuresForesthill grew from 1,483 to 1,692 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 | 1,483 | |
| 2020 | 1,692 | +209 (+14%) |
Topographic sheets covering this place
15 surveys from 33 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.
- 1891 USGS Colfax quadrangle1:125000
- 1892 USGS Colfax quadrangle1:125000
- 1894 USGS Colfax quadrangle1:125000
- 1898 USGS Colfax quadrangle1:125000
- 1900 USGS Colfax quadrangle1:125000
- 1902 USGS Colfax quadrangle1:125000, 7 printings
- 1938 USGS Colfax quadrangle1:125000, 3 printings
- 1948 USGS Foresthill quadrangle1:24000
- 1949 USGS Foresthill quadrangle1:24000, 4 printings
- 1950 USGS Colfax quadrangle1:62500, 4 printings
- 1951 USGS Foresthill quadrangle1:24000
- 1958 USGS Chico quadrangle1:250000, 4 printings
- 1960 USGS Chico quadrangle1:250000
- 1977 USGS Truckee quadrangle1:100000, 2 printings
- 2000 USGS Foresthill quadrangle1:24000
Fires near this place
189 since 1992Regional context, not property-specific evidence. The federal wildfire occurrence database lists 189 fires within 5 miles of Foresthill between 1992 and 2020, burning about 11,237 acres in total. 21 started naturally. 11 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 | 65 |
| Debris and open burning | 44 |
| Equipment and vehicle use | 25 |
| Natural | 21 |
| Arson/incendiarism | 11 |
| Power generation/transmission/distribution | 8 |
| Misuse of fire by a minor | 6 |
| Smoking | 5 |
| Recreation and ceremony | 3 |
| 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 |
|---|---|---|---|---|
| 8 September 2002 | Equipment and vehicle use | under an acre | Central California District | POLARIS |
| 7 September 2000 | Smoking | under an acre | Central California District | FORESTHILL |
| 7 September 1999 | Missing data/not specified/undetermined | under an acre | Central California District | BIRCHWOOD |
| 5 September 2005 | Other causes | 1.0 acres | Central California District | JAQUIMA |
| 5 September 1998 | Missing data/not specified/undetermined | under an acre | Central California District | PARK |
| 4 September 2002 | Debris and open burning | under an acre | Eldorado National Forest | DUSTY |
| 3 September 2008 | Smoking | under an acre | Nevada-Yuba-Placer Unit | not named |
| 3 September 2008 | Smoking | under an acre | Nevada-Yuba-Placer Unit | FORESTHILL |
Settlements close enough to share some of these fires:
Mines and quarries near this place
10 of 339 shownRegional context, not property-specific evidence. The federal mineral resources record lists 339 workings within 5 miles of Foresthill: 113 past producers, 106 unknowns, 82 occurrences, 34 producers. 34 still produce. What was taken out: Gold, Chromium, Manganese, Silver. 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 |
|---|---|---|---|---|
| Green | Chromium, Gold | Producer | Chromite, Gold | |
| Hills Armstrong Graphite Deposit | Graphite | Prospect | ||
| Michigan Bluff | Nickel | Occurrence | 1850 | |
| Occidental | Gold, Silver | Producer | ||
| Ruby Consolidated | Gold, Chromium | Occurrence | Chromite, Gold | |
| Ruby Consolidated | Chromium, Gold, Iron | Past Producer | 1917 | |
| Unnamed Location | Sulfur | Occurrence | ||
| American Bar | Gold, Lead | Past Producer | Galena, Gold, Pyrite | |
| Bunker Mine | Chromium, Iron | Past Producer | 1880, 1917 | |
| Forest Hill District | Gold, Platinum, Silver, Lead, Iron, Zinc, Copper, Indium | Past Producer | 1850 |
Storms near this place
2 since 2019Regional context, not property-specific evidence. The National Weather Service names Foresthill in 2 storm reports between 2019 and 2023: 1 hail, 1 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 |
|---|---|---|---|---|
| January 2023 | Flood | Foresthill | - | Placer County Sheriff reported closure of Mosquito Ridge Road at mile 7 due to erosion from runoff and heavy rain. |
| April 2019 | Hail | Foresthill | - | Large amounts of hail accumulated on roads in Foresthill. |
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 |
|---|---|---|---|
| Baltimore (historical) | 0.7 miles | 33 | |
| Mayflower (historical) | 1.4 miles | 33 | |
| Bath (historical) | 1.7 miles | 33 | |
| Four Acres | 1.8 miles | 33 | |
| Todd Valley | 2.4 miles | 32 | |
| Yankee Jims | 2.4 miles | 33 | |
| Michigan Bluff | 4.4 miles | 33 | |
| Hughes Mill | 5.3 miles | 33 |
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 Foresthill | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q3301540 | 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 277518. 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.














