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 2025 population of 12,291. San Anselmo is currently declining at a rate of -0.83% annually and its population has decreased by -4.04% since the most recent census, which recorded a population of 12,808 in 2020.

The average household income in San Anselmo is $240,739 with a poverty rate of 5.32%. The median age in San Anselmo is 45.7 years: 44.7 years for males, and 46.2 years for females.

Demographics

The racial composition of San Anselmo includes 79.65% White, 5.51% Asian, and smaller percentages for other race, Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Asian

Other race

Black or African American

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	10,124	79.65%
Two or more races	1,239	9.75%
Asian	701	5.51%
Other race	330	2.6%
Black or African American	173	1.36%
Native American	136	1.07%
Native Hawaiian or Pacific Islander	8	0.06%

San Anselmo Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

San Anselmo's average per capita income is $106,097. Household income levels show a median of $170,457. The poverty rate stands at 5.32%.

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	$250,001	-
Families	$224,094	$305,982
Households	$170,457	$240,739
Non Families	$75,000	$106,789

$106,097

Average Income

$170,457

Median Household Income

5.32%

Poverty Rate