San Marino

County:: Los Angeles County
County Seat:: No
Area (mi²):: 3.766
State:: California

San Marino is a city located in Los Angeles County, California. San Marino has a 2025 population of 11,645. San Marino is currently declining at a rate of -1.41% annually and its population has decreased by -6.65% since the most recent census, which recorded a population of 12,474 in 2020.

The average household income in San Marino is $285,362 with a poverty rate of 5.8%. The median age in San Marino is 45.2 years: 40.8 years for males, and 49 years for females.

Demographics

The racial composition of San Marino includes 68.91% Asian, 23.01% White, and smaller percentages for other race, Black or African American, Native Hawaiian or Pacific Islander, Native American and multiracial populations.

Population by Race

Asian

White

Two or more races

Other race

Black or African American

Native Hawaiian or Pacific Islander

Native American

Race	Population	Percentage (of total)
Asian	8,462	68.91%
White	2,826	23.01%
Two or more races	796	6.48%
Other race	129	1.05%
Black or African American	40	0.33%
Native Hawaiian or Pacific Islander	16	0.13%
Native American	10	0.08%

San Marino Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

San Marino's average per capita income is $81,492. Household income levels show a median of $187,633. The poverty rate stands at 5.8%.

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	$231,648	$313,529
Households	$187,633	$285,362
Non Families	$69,830	$111,637

$81,492

Average Income

$187,633

Median Household Income

5.8%

Poverty Rate