Woodacre, California
23 topographic sheets cover this place, the earliest surveyed in 1914 and the latest in 1983. It stands in the Northwest Marin census division. It lies in ZIP code area 94973. It lies near White Hill. The Survey maps it on the San Geronimo quadrangle. 1,410 people lived here at the 2020 count. It stands 364 feet above sea level.
Then and now
1914 to 1983The same ground, surveyed 69 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 figuresWoodacre grew from 1,348 to 1,410 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 | 1,348 | |
| 2020 | 1,410 | +62 (+5%) |
Topographic sheets covering this place
10 surveys from 23 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.
- 1914 USGS Petaluma quadrangle1:62500, 5 printings
- 1942 USGS Petaluma quadrangle1:62500
- 1947 USGS Santa Rosa quadrangle1:250000
- 1949 USGS Santa Rosa quadrangle1:250000, 2 printings
- 1954 USGS Petaluma quadrangle1:62500, 3 printings
- 1954 USGS San Geronimo quadrangle1:24000, 5 printings
- 1958 USGS Santa Rosa quadrangle1:250000, 3 printings
- 1962 USGS Santa Rosa quadrangle1:250000
- 1964 USGS Santa Rosa quadrangle1:250000
- 1983 USGS Napa quadrangle1:100000
Fires near this place
46 since 2000Regional context, not property-specific evidence. The federal wildfire occurrence database lists 46 fires within 5 miles of Woodacre between 2000 and 2020, burning about 294 acres in total. None started naturally. 1 was 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 | 29 |
| Equipment and vehicle use | 12 |
| Misuse of fire by a minor | 3 |
| Smoking | 1 |
| Arson/incendiarism | 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 |
|---|---|---|---|---|
| 29 September 2014 | Missing data/not specified/undetermined | 1.0 acres | Marin County Fire Department | not named |
| 26 September 2007 | Equipment and vehicle use | under an acre | California Department of Forestry & Fire Protection | not named |
| 24 September 2014 | Missing data/not specified/undetermined | under an acre | Marin County Fire Department | not named |
| 21 September 2010 | Equipment and vehicle use | under an acre | Marin County Fire Department | not named |
| 2 September 2006 | Equipment and vehicle use | under an acre | California Department of Forestry & Fire Protection | not named |
| 17 September 2011 | Misuse of fire by a minor | under an acre | Marin County Fire Department | not named |
| 16 September 2012 | Missing data/not specified/undetermined | under an acre | Marin County Fire Department | not named |
| 10 September 2018 | Equipment and vehicle use | 151 acres | California Department of Forestry & Fire Protection | not named |
Settlements close enough to share some of these fires:
Mines and quarries near this place
9 within 5 milesRegional context, not property-specific evidence. The federal mineral resources record lists 9 workings within 5 miles of Woodacre: 7 occurrences, 1 prospect, 1 producer. 1 still produces. What was taken out: Manganese, Gold, Gemstone, Copper. 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 |
|---|---|---|---|---|
| Lafranchi Quarry | Stone, Crushed/Broken | Producer | ||
| Maillard Ranch | Chromium | Occurrence | ||
| McKinnan Gulch | Copper, Lead | Occurrence | Vein | |
| Pike Gulch | Copper | Occurrence | Vein | |
| Unnamed Location | Gemstone | Occurrence | ||
| Maillard Ranch | Manganese | Occurrence | ||
| Maillard Ranch | Manganese | Occurrence | ||
| San Geronimo | Gold | Occurrence | ||
| San Geronimo | Gold | Prospect |
Storms near this place
4 since 2017Regional context, not property-specific evidence. The National Weather Service names Woodacre in 4 storm reports between 2017 and 2025: 2 debris flow, 2 thunderstorm wind. 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 2025 | Thunderstorm Wind | Woodacre | - | The Woodacre RAWS station measured a gust of 58 mph. |
| December 2025 | Thunderstorm Wind | Woodacre | - | The PG&E station on Gunsight Fire Road reported a gust of 90 mph. |
| February 2019 | Debris Flow | Woodacre | - | Eastbound lanes blocked at 3800 Lucas Valley Rd. |
| February 2017 | Debris Flow | Woodacre | - | Mudslide has shut down both directions of Sir Francis Drake Blvd between San Geronimo Valley Rd in Woodacre and Olema Road in Fairfax. |
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 |
|---|---|---|---|
| Mailliard (historical) | 0.7 miles | 23 | |
| San Geronimo | 1.0 miles | 23 | |
| Bothin (historical) | 1.5 miles | 24 | |
| Forest Knolls | 2.3 miles | 23 | |
| Lagunitas | 3.0 miles | 23 | |
| Sleepy Hollow | 3.2 miles | 24 | |
| Manor | 3.3 miles | 41 | |
| Shafter | 3.4 miles | 23 |
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 Woodacre | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q2881460 | 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 1652657. 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.









