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 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.

12.3K
Total Population
4,594
Density (mi²)
-103 -0.83%
Growth

San Anselmo Population

San Anselmo Population

Data after 2023 is projected based on recent change

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

Race
Population
Percentage (of total)
White10,12479.65%
Two or more races1,2399.75%
Asian7015.51%
Other race3302.6%
Black or African American1731.36%
Native American1361.07%
Native Hawaiian or Pacific Islander80.06%

San Anselmo Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

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)