San Marino demographics profile

StatisticSan MarinoCaliforniaNational
Population density (sq mi)3,53723291
Median age46.736.037.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)72%52%55%
Families w/ Kids under 1846%46%43%
Speak English44%56%79%
Speak Spanish8%29%13%
San Marino, CA has a population of 13,324 and is the 3,134th largest city in the United States. The population density is 3,537 per sq mi which is 1422% higher than the California average and 3804% higher than the national average. The median age in San Marino is 47 which is approximately 30% higher than the California average of 36. In San Marino, 72% of the population over 15 years of age are married, 44% speak English and 8% speak Spanish. 44% of San Marino residents were born in California, 14% were born out of state, 2% were born outside of the United States and 40% were foreign born.

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Did you know?

  • The population density in San Marino is 1422% higher than California.
  • The median age in San Marino is 30% higher than California.
  • In San Marino 37.40% of the population is White.
  • In San Marino 1.25% of the population is Black or African American.
  • In San Marino 54.80% of the population is Asian.

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Compare San Marino, CA Demographics To Other Cities

San Marino population breakdown by race

RaceSan MarinoCaliforniaNational
Black or African American1.25%5.85%12.63%
American Indian0.00%0.74%0.82%
Native Hawaiian0.17%0.39%0.18%
Mixed race2.63%4.62%3.06%
Other race3.75%13.28%4.75%
In San Marino, 8.8% of people are of Hispanic or Latino origin.
Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

Languages spoken

Place of birth by citizenship

Household income distribution

Source of income

San Marino age breakdown

Marital status

Age of children in married couples

Source: The San Marino, CA demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).
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