Population
Population
topographic
Population

San Anselmo

12,830
Total Population in 2020
In 2020, San Anselmo was home to 12,830 people. Residents were a majority working age, while those under 18 were a larger segment of the community than those 65 and older. The population was predominantly white, with more women than men.

Most Populous Demographics

CategoryDemographicTotalPercentage
Age18-647,29457%
SexFemale6,75953%
Race and Hispanic or LatinoWhite (Not Hispanic or Latino)10,11879%

Age

47.2
Median Age
In 2020, San Anselmo's population was a majority working-age adults, while those under age 18 were a moderately larger share of the community than those 65 and older. Looking at 10-year age ranges, 50-59 was the largest group.

Population by Age Range

00.55k1.1k1.65k2.2k0-910-1920-2930-3940-4950-5960-6970-7980+11%14%6%9%15%17%15%10%4%
00.55k1.1k1.65k2.2k11%14%6%9%15%17%15%10%4%0-910-1920-2930-3940-4950-5960-6970-7980+
/View Population by Age Range dynamic table

Population by Age Group

57%18-64
    2,879
    Under 18
    7,294
    18-64
    2,657
    65 and over
/View Population by Age Group dynamic table

Table: Population by Age Range

Age RangePopulation in San Anselmo
TotalPercentage
0-91,38611%
10-191,80314%
20-298036%
30-391,1639%
40-491,86115%
50-592,17817%
60-691,89715%
70-791,27410%
80+4654%

Table: Population by Age Group

Age GroupPopulation in San Anselmo
TotalPercentage
Under 182,87922%
18-647,29457%
65 and over2,65721%
* For both charts above, the data is collected from the U.S. Census Bureau Decennial Data 2020, Demographic and Housing Characteristics File (DHC), P12 Sex by Age for Selected Age Categories.

Sex and Age

In 2020, females outnumbered males by a significant amount in San Anselmo. Females 50-59 were the largest group by age, followed by males 50-59 and females 60-69. The biggest gap was in the 60-69 age group, where females were the larger share.

Population by Sex

53%Female
    6,071
    Male
    6,759
    Female
/View Population by Sex dynamic table

Population by Sex and Age

00.3k0.6k0.9k1.2k0-910-1920-2930-3940-4950-5960-6970-7980+6959053865178671,0428745931926918984176469941,1361,023681273
00.3k0.6k0.9k1.2k0-910-1920-2930-3940-4950-5960-6970-7980+6959053865178671,0428745931926918984176469941,1361,023681273
1.2k0.9k0.6k0.3k00.3k0.6k0.9k1.2k0-910-1920-2930-3940-4950-5960-6970-7980+6959053865178671,0428745931926918984176469941,1361,023681273
/View Population by Sex and Age dynamic table
Male
Female

Table: Population by Sex

SexSan Anselmo
TotalPercentage
Male6,07147%
Female6,75953%

Table: Population by Sex and Age

Sex and AgeSan Anselmo
TotalPercentage
Male6,07147%
Male: 0-96955%
Male: 10-199057%
Male: 20-293863%
Male: 30-395174%
Male: 40-498677%
Male: 50-591,0428%
Male: 60-698747%
Male: 70-795935%
Male: 80+1922%
Female6,75953%
Female: 0-96915%
Female: 10-198987%
Female: 20-294173%
Female: 30-396465%
Female: 40-499948%
Female: 50-591,1369%
Female: 60-691,0238%
Female: 70-796815%
Female: 80+2732%
* For both charts above, the data is collected from the U.S. Census Bureau Decennial Data 2020, Demographic and Housing Characteristics File (DHC), P12 Sex by Age for Selected Age Categories.

Race and Hispanic or Latino

79%
White (Not Hispanic or Latino)
In 2020, San Anselmo had a predominantly white population. Hispanic residents also made up a notable segment of the community, while other/multiracial and Asian people were the next largest groups.

Population by Race and Hispanic or Latino

03k6k9k12kWhite*Black or African American*American Indian / Alaska Native*Asian*Native Hawaiian / Pacific Islander*Other / Multi-racial*Hispanic or Latino (any race)79%<1%<1%3%<1%8%9%
03k6k9k12kWhite*Black or African American*American Indian / Alaska Native*Asian*Native Hawaiian / Pacific Islander*Other / Multi-racial*Hispanic or Latino (any race)79%<1%<1%3%<1%8%9%
03k6k9k12kWhite*Black or African American*American Indian / Alaska Native*Asian*Native Hawaiian / Pacific Islander*Other / Multi-racial*Hispanic or Latino (any race)79%<1%<1%3%<1%8%9%
/View Population by Race and Hispanic or Latino dynamic table

Table: Population by Race and Hispanic or Latino

Race and Hispanic or LatinoPopulation in San Anselmo
TotalPercentage
White10,11879%
Black or African American97<1%
American Indian / Alaska Native20<1%
Asian4393%
Native Hawaiian / Pacific Islander12<1%
Other / Multi-racial9648%
Hispanic or Latino (any race)1,1809%
* Categorized as Not Hispanic. This means that all the racial groups marked with an asterisk — White, Black or African American, American Indian / Alaska Native, Asian, Native Hawaiian / Pacific Islander, and Other / Multi-racial — do not include individuals who identify as Hispanic or Latino. The "Hispanic or Latino (any race)" category is separate, as Hispanic/Latino is considered an ethnicity rather than a racial category. For the chart above, the data is collected from the U.S. Census Bureau Decennial Data 2020, Demographic and Housing Characteristics File (DHC), P5 Hispanic or Latino Origin by Race.