San Anselmo, California Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of San Anselmo, California is 12,711 as of the 2023 American Community Survey, making it the 438th-largest city in California. The median household income is $170,457, the median home value is $1,524,300, and the median age is 45.7.
The population has grown 2.6% since 2010 (12,320 → 12,645).
12,711
Population
4752
People / sq mi
$170,457
Median Income
$1,524,300
Median Home Value
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San Anselmo covers 2.7 sq mi of land at 4752 people per square mile.
About San Anselmo, CA
In San Anselmo, home values do the distinguishing — a median of $1,524,300. San Anselmo is a city in California with a population of 12,711.
Income is a real outlier — the median household pulls in $170,457, putting San Anselmo near the top of US cities. Poverty is among the lowest of comparable US cities, at 1.3% — below the national 12.4%. Real estate commands a premium here — a median home value of $1,524,300, with typical rent around $2,750.
San Anselmo is among the best-educated US cities: 70.8% of adults 25 and older hold a bachelor’s degree, above the national 35.0%. An unusually large 29.2% of workers are remote, above the national 14.0%, and the average commute runs about 29 minutes each way.
High housing values reframe the income picture in San Anselmo — even solid earnings stretch less against home prices and rents at this level.
San Anselmo town Population History (2010-2024)
The city of San Anselmo town had a population of 12,320 in 2010 and 12,645 in 2024, a 2.6% growth over 14 years. The peak was 12,815 in 2020. Average annual growth rate: 0.19%.
12,645
Population (2024)
12,320
Population (2010)
12,815
Peak (2020)
0.19%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 12,320 |
| 2011 | 12,418 |
| 2012 | 12,472 |
| 2013 | 12,586 |
| 2014 | 12,623 |
| 2015 | 12,608 |
| 2016 | 12,572 |
| 2017 | 12,523 |
| 2018 | 12,522 |
| 2019 | 12,476 |
| 2020 | 12,815 |
| 2021 | 12,774 |
| 2022 | 12,637 |
| 2023 | 12,569 |
| 2024 | 12,645 |
Race & Ethnicity
| White | 79.6% |
| Black or African American | 1.4% |
| Asian | 0.5% |
| Hispanic or Latino (any race) | 1.6% |
| Two or More Races | 0.0% |
Economy & Income
$170,457
Median Household Income
$98,602
Per Capita Income
1.3%
Poverty Rate
3.8%
Unemployment Rate
Housing
$1,524,300
Median Home Value
$2,750
Median Rent
67.9%
Owner-Occupied
Education
97.6%
High School+
70.8%
Bachelor's+
Commute
4.8%
Drive Alone
55.9%
Public Transit
29.2%
Work From Home
29.0 min
Avg Commute
Community Profile
30.3%
Foreign Born
92.3%
Non-English at Home
3.1%
Veterans
8.6%
With Disability
98.1%
Health Insurance
98.0%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 24.2% |
| Finance, Insurance & Real Estate | 23.3% |
| Information | 9.2% |
| Education, Health Care & Social Services | 7.6% |
| Construction | 7.1% |
| Transportation & Warehousing | 5.1% |
| Public Administration | 3.9% |
| Manufacturing | 3.6% |
| Arts, Entertainment & Food Services | 3.3% |
| Retail Trade | 2.9% |
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Frequently Asked Questions
San Anselmo, California has a population of 12,711 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 438th-largest city in California.
The median household income in San Anselmo, California is $170,457, with 1.3% of residents living below the federal poverty level.
The median home value in San Anselmo, California is $1,524,300, with median monthly rent at $2,750 and a homeownership rate of 67.9%.
The median age in San Anselmo, California is 45.7 years. The population is 50.1% male and 49.9% female.
The population has grown 2.6% since 2010 (12,320 → 12,645).
San Anselmo town, CA Climate
San Anselmo town, CA has an average annual temperature of 14.6°C (58°F) and receives about 1083 mm of precipitation per year. The warmest month is August and the coldest is January. Figures are 1970–2000 climate normals.
14.6°C
Avg Temp
1083
Precip (mm/yr)
Aug
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | 9° / 48° | 227 mm |
| February | 11° / 52° | 191 mm |
| March | 12° / 54° | 158 mm |
| April | 14° / 56° | 63 mm |
| May | 15° / 60° | 21 mm |
| June | 18° / 64° | 6 mm |
| July | 19° / 66° | 2 mm |
| August | 19° / 67° | 3 mm |
| September | 19° / 66° | 10 mm |
| October | 17° / 62° | 53 mm |
| November | 13° / 55° | 155 mm |
| December | 9° / 49° | 194 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit San Anselmo town, CA
The most comfortable months to visit San Anselmo town, CA are typically August, July and September, when temperatures are mildest and rainfall is relatively low. The hottest month is August (around 26°C high). The coldest is January (near 5°C low). January is usually the wettest month.
Where to stay near San Anselmo
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.