San Anselmo, CA demographics:
population, income, and more

Total population
12,679
-0.2% year-over-year change
Median household income
$173,641/yr
1.9% year-over-year change
Housing units
5,498
1.9% year-over-year change

San Anselmo population

How many people live in San Anselmo

San Anselmo is home to 12,679 residents, according to the most recent Census data. Gender-wise, 48.7% of San Anselmo locals are male, and 51.3% are female.

Total population
12,679
-0.2% year-over-year change
Gender ratio
Male
48.7%
6,173
Female
51.3%
6,506
Value Percent YoY change
Male 6,173 48.7% -3.1%
Female 6,506 51.3% 2.6%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in San Anselmo is 46, with the population distributed as follows: about 19.5% are children under 15, then 8.9% are in the 15 to 24 age group. Adults between 25 and 44 make up 21.1% of the population, while another 28.8% fall into the 45 to 64 bracket. Finally, around 21.6% are 65 or older.

Median age
45.6
Age breakdown
Under 15
19.5%
15 to 24
8.9%
25 to 44
21.1%
45 to 64
28.8%
Over 65
21.6%
Value Percent YoY change
Under 15 2,471 19.5% 0.1%
15 to 24 1,132 8.9% -3.5%
25 to 44 2,677 21.1% 1.1%
45 to 64 3,654 28.8% -3.5%
Over 65 2,745 21.6% 4.1%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In San Anselmo, 87.7% of the population are US-born citizens, while 9% have gained naturalized citizenship. At the same time, 3.3% of residents are non-citizens. As for race, 76.6% of locals are Caucasian, 1.7% are African American and 6.1% have Asian roots. Another 1.4% are Indigenous American, 0.1% are Pacific Islanders, while 2.1% identify as another race. There’s also a share of 12% that includes residents with two or more races.

Citizenship
U.S.-born citizens
87.7%
Non-U.S.-born citizens
9%
Non-citizens
3.3%
Value Percent YoY change
U.S.-born citizens 11,122 87.7% -1.9%
Non-U.S.-born citizens 1,143 9% 18.8%
Non-citizens 414 3.3% 1.2%
Racial breakdown
White
76.6%
Black or African American
1.7%
American Indian and Alaska Native
1.4%
Asian
6.1%
Native Hawaiian and other Pacific Islander
0.1%
Two or more races
12%
Other
2.1%
Value Percent
White 9,713 76.6%
Black or African American 213 1.7%
American Indian and Alaska Native 183 1.4%
Asian 774 6.1%
Native Hawaiian and other Pacific Islander 9 0.1%
Two or more races 1,517 12%
Other 270 2.1%

Households in San Anselmo

A peek inside San Anselmo households

San Anselmo has 5,224 households, with an average of 2 members in each. Of these, 65.2% are families, while the remaining 34.8% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
5,224
2.4% year-over-year change
Average people per household
2
Non-family households
1,816
Family households
3,408
Value Percent YoY change
Non-family households 1,816 34.8% 6.3%
Family households 3,408 65.2% 0.4%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in San Anselmo

The housing landscape of San Anselmo

San Anselmo's housing consists of 5,498 units, with 76.9% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 2.4% and offer a more compact, shared living style.

Housing units
5,498
1.9% year-over-year change
Housing types
Value Percent
1 unit, detached 4,229 76.9%
1 unit, attached 133 2.4%
2 units 267 4.9%
3 or 4 units 336 6.1%
5 to 9 units 195 3.6%
10 to 19 units 130 2.4%
20 to 49 units 172 3.1%
50 or more units 36 0.6%
Homes built since 2020
18
% year-over-year change

The age of buildings in San Anselmo

In San Anselmo, the median construction year is 1955. About 28.8% of homes were built before the 1940s, with another 11.8% going up by 1949. Most development happened in the second half of the 20th century. Then, 1.7% of homes were added from 2000 to 2009, 2.5% between 2010 and 2019, and 0.3% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 1,583 28.8% -0.1%
Built between 1940 and 1949 647 11.8% -2.0%
Built between 1950 and 1959 1,132 20.6% 2.7%
Built between 1960 and 1969 700 12.7% -9.1%
Built between 1970 and 1979 680 12.4% 8.6%
Built between 1980 and 1989 217 4% 13.0%
Built between 1990 and 1999 291 5.3% -8.8%
Built between 2000 and 2009 91 1.7% -23.5%
Built between 2010 and 2019 139 2.5% 434.6%
Built in 2020 or later 18 0.3% N/A
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

San Anselmo occupancy rates

Out of the 5,224 occupied housing units in San Anselmo, 68.4% are owner-occupied, while 31.6% are lived in by tenants. Meanwhile, 5% of all homes on the local market sit vacant.

Occupied housing units
5,224
2.4% year-over-year change
Occupancy breakdown
Renter occupied
1,651
Owner occupied
3,573
Value Percent YoY
change
Renter occupied 1,651 31.6% 0.9%
Owner occupied 3,573 68.4% 3.1%
Unoccupied housing units
5.0%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

San Anselmo housing costs

Housing costs in San Anselmo come to a median of $3,567 per month, while tenants specifically pay a median gross rent of $2,797.

Median housing costs per month
$3,567/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in San Anselmo
$2,797/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in San Anselmo

San Anselmo education at a glance

About 10.9% of the population in San Anselmo went to high school, while 13.7% pursued college studies. Another 6.2% earned an associate degree and 40.3% hold a bachelor’s. Meanwhile, 28.4% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 57 0.6% 46.1%
High school diploma 1,052 10.9% -2.4%
College diploma 1,322 13.7% 6.2%
Associate degree 600 6.2% -2.8%
Bachelor's degree 3,897 40.3% -2.6%
Graduate degree 2,750 28.4% 3.7%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in San Anselmo

How much people earn in San Anselmo

The average annual household income in San Anselmo was $247,884 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +3% change from the previous year. At the same time, the median income stood at $173,641, reflecting a +1.9% shift over the same period.

Average household income in San Anselmo
$247,884/year
3.0% year-over-year change
Median household income in San Anselmo
$173,641/year
1.9% year-over-year change

San Anselmo income by age

In San Anselmo, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $211,807. Those with someone between 45 and 64 in charge, often well established professionally, earn $229,219 overall. Overall, 92.5% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $211,807 -4.7%
45 - 64 $229,219 -4.5%
Over 65 $93,871 2.0%
Above poverty level
11,580
Below poverty level
942
Value Percent YoY
change
Above poverty level 11,580 92.5% -2.8%
Below poverty level 942 7.5% 39.6%

Average renter income in San Anselmo

To get a better sense of what renters earn on average in San Anselmo, their median household income was $86,351 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 38.9%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$86,351
Rent-to-income ratio
38.9%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in San Anselmo

Workforce and job types in San Anselmo

The job market in San Anselmo is powered by 6,434 working residents, spread across a range of industries and roles. 95% of the working population are employed in professional or administrative positions, while 5% are in hands-on or service-based jobs. Also, 23.7% run their own businesses, 55% are employed by private companies, and 13.2% work in the public sector.

Workforce demographics

Working population
6,434
-2.5% year-over-year change
White collar
6,111
Blue collar
323
Value Percent YoY change
White collar 6,111 95% -1.1%
Blue collar 323 5% -23.6%
Employer type
Self employees
23.7%
Private companies
55%
Governmental workers
13.2%
Not for profit companies
8.1%
Value Percent YoY change
Self employees 1,526 23.7% -5.5%
Private companies 3,542 55% -0.9%
Governmental workers 846 13.2% 9.3%
Not for profit companies 520 8.1% -18.2%
Unemployment rate
7.0%
30.5% year-over-year change

Available workforce

The unemployment rate in San Anselmo stands at 7%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in San Anselmo

How people get around in San Anselmo

Commuting methods vary: 53% of residents travel by personal vehicle and 3.7% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 3,263 53% -12.9%
Bus or trolleybus 58 0.9% -67.8%
Subway or elevated 14 0.2% N/A
Railroad 10 0.2% N/A
Ferryboat 100 1.6% -5.7%
Bicycle 135 2.2% 28.6%
Walk 225 3.7% -23.7%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in San Anselmo by zipcode?

Zipcode Population Number of households Median income Average income
94960 16,232 6,546 $185,170 $277,701

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FAQs about San Anselmo demographics 

What is the total population of San Anselmo?

San Anselmo has a total population of 12,679 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -0.2% compared to a year ago.

What is the gender ratio in San Anselmo?

The gender ratio in San Anselmo is as follows:
  • 48.7% males (6,173 residents)
  • 51.3% females (6,506 residents)

What is the median age in San Anselmo?

The median age in San Anselmo is 45.6.

What is the age distribution of the population in San Anselmo?

The age distribution in San Anselmo is as follows:
  • Under 15: 19.5% (2,471 residents)
  • Ages 15-24: 8.9% (1,132 residents)
  • Ages 25-44: 21.1% (2,677 residents)
  • Ages 45-64: 28.8% (3,654 residents)
  • Over 65: 21.6% (2,745 residents)

What is the racial and ethnic makeup of San Anselmo?

The racial and ethnic makeup of San Anselmo is as follows:
  • White: 76.6% (9,713 residents)
  • Black or African American: 1.7% (213 residents)
  • American Indian and Alaska Native: 1.4% (183 residents)
  • Asian: 6.1% (774 residents)
  • Native Hawaiian and Other Pacific Islander: 0.1% (9 residents)
  • Two or More Races: 12% (1,517 residents)
  • Other: 2.1% (270 residents)

What percentage of the population in San Anselmo are U.S.-born citizens?

U.S.-born citizens represent 87.7% of the population in San Anselmo.

How many housing units are there in San Anselmo?

There are 5,498 housing units in San Anselmo, reflecting a +1.9% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in San Anselmo and what is the average household size?

San Anselmo has a total of 5,224 households, with an average of 2 people in each.

What is the median household income in San Anselmo?

San Anselmo has a median household income of $173,641, representing a +1.9% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for San Anselmo?

The employment rate is 93% in San Anselmo, with a workforce of 6,434 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 95% (6,111 residents)
  • Blue-collar workers: 5% (323 residents)

Places of employment:
  • Self-employed: 23.7% (1,526 residents)
  • Private companies: 55% (3,542 residents)
  • Governmental workers: 13.2% (846 residents)
  • Not-for-profit companies: 8.1% (520 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025