San Anselmo, CA Demographics

A map of San Anselmo's Population by Race

San Anselmo, California has an estimated population of 12,679, a slight decrease from the 12,830 recorded in the 2020 Census. The population is 74.2% White, 10.5% Hispanic, 7.3% Multiracial, 6.1% Asian, 1.4% Black, and 0.6% Native American/Other. This demographic dot map shows the population of San Anselmo, with one dot drawn for each person counted by the Census, color-coded by race.

San Anselmo has become considerably more racially diverse since the 2020 Census. It is considerably less diverse than California overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In San Anselmo, that probability was 36.4% in 2020 and 42.9% in the most recent ACS estimates.

San Anselmo is ranked the 438th most populous place in California, out of 1,618 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). San Anselmo was ranked the 439th most populous place in the 2020 Census.

San Anselmo's White Population

9,411 residents of San Anselmo, or 74.2% of the population, identify as White. The share of White residents in San Anselmo is significantly higher than in California overall, where 33.8% of the population is White. San Anselmo ranks 274th statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Anselmo's White population has declined by an estimated 7.0%. White residents' share of San Anselmo's population has decreased from 78.9% to 74.2%.

San Anselmo is more White than neighboring Larkspur (73.2% White). San Anselmo is less White than neighboring Ross (79.9% White), Fairfax (80.3% White), Sleepy Hollow (79.4% White), and Kentfield (79.8% White).

San Anselmo's Black Population

174 residents of San Anselmo, or 1.4% of the population, identify as Black. The share of Black residents in San Anselmo is slightly lower than in California overall, where 5.2% of the population is Black. San Anselmo ranks 870th statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Anselmo's Black population has grown by an estimated 79.4%. Black residents' share of San Anselmo's population has increased from 0.8% to 1.4%.

San Anselmo is more Black than neighboring Ross (1.2% Black), Sleepy Hollow (0.8% Black), Kentfield (0.8% Black), and Larkspur (0.1% Black). San Anselmo is less Black than neighboring Fairfax (2% Black).

San Anselmo's Asian Population

774 residents of San Anselmo, or 6.1% of the population, identify as Asian. The share of Asian residents in San Anselmo is lower than in California overall, where 15.3% of the population is Asian. San Anselmo ranks 616th statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Anselmo's Asian population has grown by an estimated 76.3%. Asian residents' share of San Anselmo's population has increased from 3.4% to 6.1%.

San Anselmo is more Asian than neighboring Ross (1.9% Asian), Fairfax (3.2% Asian), Sleepy Hollow (0.5% Asian), and Kentfield (5.2% Asian). San Anselmo is less Asian than neighboring Larkspur (6.7% Asian).

San Anselmo's Hispanic Population

1,327 residents of San Anselmo, or 10.5% of the population, identify as Hispanic. The share of Hispanic residents in San Anselmo is significantly lower than in California overall, where 40.2% of the population is Hispanic. San Anselmo ranks 1295th statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Anselmo's Hispanic population has grown by an estimated 12.5%. Hispanic residents' share of San Anselmo's population has increased from 9.2% to 10.5%.

San Anselmo is more Hispanic than neighboring Ross (5.7% Hispanic), Fairfax (6.8% Hispanic), Sleepy Hollow (8.1% Hispanic), Kentfield (8.1% Hispanic), and Larkspur (8.8% Hispanic).

San Anselmo's Native American/Other Population

72 residents of San Anselmo, or 0.6% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in San Anselmo is comparable to the share in California overall, where 1.2% of the population is Native American/Other. San Anselmo ranks 962nd statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Anselmo's Native American/Other population has declined by an estimated 46.7%. Native American/Other residents' share of San Anselmo's population has decreased from 1.1% to 0.6%.

San Anselmo is less Native American/Other than neighboring Ross (1.2% Native American/Other), Fairfax (2% Native American/Other), Sleepy Hollow (3.8% Native American/Other), Kentfield (1.1% Native American/Other), and Larkspur (1.6% Native American/Other).

San Anselmo's Multiracial Population

921 residents of San Anselmo, or 7.3% of the population, identify as Multiracial. The share of Multiracial residents in San Anselmo is slightly higher than in California overall, where 4.4% of the population is Multiracial. San Anselmo ranks 322nd statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, San Anselmo's Multiracial population has grown by an estimated 7.0%. Multiracial residents' share of San Anselmo's population has increased from 6.7% to 7.3%.

San Anselmo is more Multiracial than neighboring Fairfax (5.7% Multiracial), and Kentfield (5.1% Multiracial). San Anselmo is less Multiracial than neighboring Ross (10.1% Multiracial), Sleepy Hollow (7.4% Multiracial), and Larkspur (9.6% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.