San Anselmo Flag

San Anselmo

County:
Marin County
County Seat:
No
Area (mi²):
2.675
State:
California

San Anselmo is a town located in Marin County, California. San Anselmo has a 2026 population of 12,560. San Anselmo is currently declining at a rate of -0.33% annually and its population has decreased by -1.99% since the most recent census, which recorded a population of 12,815 in 2020.

The median household income in San Anselmo is $173,641 with a poverty rate of 7.44%. The median age in San Anselmo is 45.6 years: 45.2 years for males, and 45.9 years for females. For every 100 females there are 94.9 males.

12.6K
Total Population
4,695
Density (mi²)
-42 -0.33%
Growth

San Anselmo Population

San Anselmo Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202612,560-42-0.33%
202512,602-43-0.34%
202412,645760.6%
202312,569-68-0.54%
202212,637-137-1.07%
202112,774-41-0.32%
202012,815-22-0.17%
201912,606-61-0.48%
201812,667-7-0.06%
201712,674-51-0.4%
201612,72510.01%
201512,724240.19%
201412,700850.67%
201312,6151291.03%
201212,486620.5%
201112,4241020.83%
201012,322-14-0.11%
200012,3786355.41%
199011,743-324-2.69%
198012,067-964-7.4%
197013,0311,44712.49%
196011,5842,39626.08%
19509,1883,39858.69%
19405,7901,14024.52%
19304,6502,17587.88%
19202,47594461.66%
19101,53100%

Median Age

Overall: 45.6 years
Female: 45.9 years
Male: 45.2 years

San Anselmo Adults

There are 9,678 adults, (2,745 of whom are seniors) in San Anselmo.

Sex Ratio

Female: 6,506 (51.3%)
Male: 6,173 (48.7%)

Demographics

The racial composition of San Anselmo includes 76.61% White, 6.1% Asian, and smaller percentages for other race, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White9,71376.61%
Two or more races1,51711.96%
Asian7746.1%
Other race2702.13%
Black or African American2131.68%
Native American1831.44%
Native Hawaiian or Pacific Islander90.07%
Race
Population ↓
Percentage (of total)
Two or more races5964.7%
White3022.38%
Other race2071.63%
Native American1831.44%
Black or African American390.31%
Race
Population ↓
Percentage (of total)
White9,41174.23%
Two or more races9217.26%
Asian7746.1%
Black or African American1741.37%
Other race630.5%
Native Hawaiian or Pacific Islander90.07%

San Anselmo Marital Status

Economics and Income Statistics

San Anselmo 's average per capita income is $110,000. Household income levels show a median of $173,641. The poverty rate stands at 7.44%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$249,688-
Families$227,786$321,718
Households$173,641$247,884
Non Families$71,458$105,921

$110,000

Average Income

$173,641

Median Household Income

7.44%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)