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San Mateo County, California

Interactive maps and statistics for San Mateo County, California: income, age, education, housing, health and more, set beside California and the United States.

San Mateo County, California is among the highest in the country for total population (89th of 3,222 counties), and among the highest in the country for median household income (3rd of 3,221 counties).

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Key figures

StatisticSan Mateo County, California CaliforniaUnited States Rank
Total Population742,34039,287,376334,922,49989th of 3,222
Median Household Income$158,855$99,122$80,7343rd of 3,221
Median Age40.937.938.91820th of 3,222
Bachelor's Degree or Higher53.7%37.1%35.7%63rd of 3,222
Median Home Value$1,559,600$734,700$332,7003rd of 3,217
Median Gross Rent$2,922$2,036$1,4131st of 3,215
Poverty Rate6.7%12.0%12.5%3043rd of 3,222
Unemployment Rate4.8%6.6%5.2%1335th of 3,222
Population per Square Mile1,654.7252.1n/a99th of 3,222
Foreign Born35.7%27.0%14.1%9th of 3,222
Life Expectancy84.5n/an/a22nd of 3,062
Homeownership Rate58.5%55.9%65.2%3044th of 3,222
Average Commute Time26.428.726.41099th of 3,221
Worked from Home24.3%17.2%15.1%55th of 3,222
Uninsured4.7%n/an/a3046th of 3,134
Married-Couple Households53.5%48.4%46.9%767th of 3,222
Broadband Access94.4%n/an/a37th of 3,135

Rank is among all US counties with published data, counting down from the highest value. Figures come from the American Community Survey, CDC, BLS, BEA and other federal sources. Open the map for 1,147 statistics and the year and margin of error behind each one.

Race and ethnicity in San Mateo County, California

StatisticSan Mateo County, CaliforniaCaliforniaUnited States
White (non-Hispanic)34.7%33.8%57.4%
Hispanic or Latino (any race)24.9%40.2%19.3%
Black (non-Hispanic)2.0%5.2%11.9%
Asian (non-Hispanic)31.0%15.3%5.9%
Two or More Races (non-Hispanic)5.2%4.4%4.3%
American Indian & Alaska Native (non-Hispanic)0.1%0.3%0.5%
Native Hawaiian & Pacific Islander (non-Hispanic)1.1%0.3%0.2%
Some Other Race (non-Hispanic)0.9%0.6%0.6%
Diversity Index71.869.761.4

Age in San Mateo County, California

StatisticSan Mateo County, CaliforniaCaliforniaUnited States
Median Age40.937.938.9
Under 18 %19.5%22.0%22.0%
Age 18-24 %7.3%9.1%9.1%
Age 25-34 %14.2%14.8%13.7%
Age 35-44 %14.7%13.9%13.2%
Age 45-64 %26.4%24.6%24.8%
Age 65 and Over %17.8%15.7%17.2%

Households and families in San Mateo County, California

StatisticSan Mateo County, CaliforniaCaliforniaUnited States
Households264,41913,548,091129,227,496
Average Household Size2.82.82.5
Family Households67.9%67.8%64.2%
Households with Children30.2%32.4%29.5%
Single-Parent Families14.4%19.4%17.3%
People Living Alone24.4%24.3%28.7%
Never Married34.3%38.2%34.4%

Income and poverty in San Mateo County, California

StatisticSan Mateo County, CaliforniaCaliforniaUnited States
Per Capita Income$84,288$49,513$44,673
Households Under $25,0007.1%12.5%14.6%
Households $50,000 to $74,9998.7%13.0%15.5%
Households $100,000 to $149,99915.1%17.8%17.5%
Households $200,000 or More39.9%20.5%13.4%
Poverty Rate6.7%12.0%12.5%
Below 200% of Poverty14.9%27.3%28.2%
SNAP Households5.1%12.4%n/a

Housing in San Mateo County, California

StatisticSan Mateo County, CaliforniaCaliforniaUnited States
Housing Units287,18414,644,735143,775,355
Single-Family Detached Homes55.3%57.0%61.3%
Buildings with 5+ Units28.7%24.1%19.1%
Vacancy Rate7.9%7.5%10.1%
Median Year Structure Built1,966.01,976.01,980.0
Renter-Occupied41.5%44.1%34.8%
Rent as % of Household Income29.3%32.8%30.6%
Median Property Tax$9,519$5,124n/a

Education in San Mateo County, California

StatisticSan Mateo County, CaliforniaCaliforniaUnited States
Less than High School9.8%15.3%10.4%
High School Graduate14.7%20.5%26.0%
Some College or Associate Degree21.9%27.2%27.9%
Bachelor's Degree29.6%22.7%21.6%
Graduate or Professional Degree24.1%14.4%14.1%

Work and commuting in San Mateo County, California

StatisticSan Mateo County, CaliforniaCaliforniaUnited States
Labour Force Participation67.3%63.8%63.5%
Drove Alone to Work56.7%65.7%68.8%
Public Transit5.1%2.9%3.2%
Walked to Work2.3%2.4%2.4%
Commutes Under 15 Minutes20.9%22.0%26.0%
Commutes Over an Hour7.4%11.1%8.6%
Households Without a Car5.8%7.1%n/a

Origins and language in San Mateo County, California

StatisticSan Mateo County, CaliforniaCaliforniaUnited States
Born in State of Residence48.3%56.5%57.3%
Naturalised Citizens20.8%14.7%7.4%
Non-Citizens14.9%12.3%6.8%
Speaks Only English at Home54.2%55.6%77.7%
Speaks Spanish at Home17.6%28.3%13.6%
Limited English Proficiency33.3%32.1%16.7%

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