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San Mateo

County in California (USA)

Contents: Population

The population development of San Mateo as well as related information and services (Wikipedia, Google, images).

San MateoCounty649,623707,161718,451764,442737,888
USA [United States of America]Federal Republic248,709,873281,421,906308,745,538331,449,281331,893,745

Source: U.S. Census Bureau (web).

Explanation: All population totals refer to 2020 boundaries. The 2021 gender and age figures are not fully based on results of the 2020 census.


Further information about the population structure:

Gender (E 2021)
Males367,439
Females370,449
Age Groups (E 2021)
0-17 years146,863
18-64 years462,114
65+ years128,911
Age Distribution (E 2021)
0-9 years78,156
10-19 years83,246
20-29 years85,352
30-39 years112,685
40-49 years101,108
50-59 years101,239
60-69 years87,508
70-79 years56,363
80+ years32,231
»Race« (C 2020)
White300,188
Black/African American15,707
Indigenous6,812
Asian230,242
Pacific Islander9,302
Some other107,924
2 or more94,267
Ethnicity (C 2020)
Hispanic or Latino191,386
Other573,056

See also:

Located in:


USA: Counties