San Dimas

County:: Los Angeles County
County Seat:: No
Area (mi²):: 15.034
State:: California

San Dimas is a city located in Los Angeles County, California. San Dimas has a 2025 population of 31,977. San Dimas is currently declining at a rate of -1.73% annually and its population has decreased by -8.1% since the most recent census, which recorded a population of 34,797 in 2020.

The average household income in San Dimas is $135,605 with a poverty rate of 9.19%. The median age in San Dimas is 42.8 years: 42.9 years for males, and 42.6 years for females.

Demographics

The racial composition of San Dimas includes 46.19% White, 17.59% Asian, 12.23% other race, 3.43% Black or African American, and smaller percentages for 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	15,749	46.19%
Two or more races	6,524	19.13%
Asian	5,997	17.59%
Other race	4,170	12.23%
Black or African American	1,171	3.43%
Native American	403	1.18%
Native Hawaiian or Pacific Islander	85	0.25%

San Dimas Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

San Dimas' average per capita income is $58,831. Household income levels show a median of $105,833. The poverty rate stands at 9.19%.

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	$145,189	-
Families	$124,269	$157,415
Households	$105,833	$135,605
Non Families	$50,893	$68,582

$58,831

Average Income

$105,833

Median Household Income

9.19%

Poverty Rate