Census Dots

San Mateo, CA Demographics

A map of San Mateo's Population by Race

Race
PopulationPercent
White
40,51938.3%
Asian
27,78626.3%
Hispanic
27,19825.7%
Multiracial
5,7375.4%
Native American/Other
2,7252.6%
Black
1,6961.6%

San Mateo, California had a population of 105,661 in 2020. It was 38.3% White, 1.6% Black, 26.3% Asian, 25.7% Hispanic, 2.6% Native American/Other, and 5.4% Multiracial. This map presents the population of San Mateo, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Of the 1,611 places in California, San Mateo is the 69th most populous. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs).

San Mateo's White Population

40,519 residents of San Mateo identify as White, or 38.3%. This makes the White share of the population of San Mateo roughly similar to the White share of the population of California (34.7% White). Of the 1,611 places in California, San Mateo is ranked #1080 in terms of White residents as a share of the population.

San Mateo is less White than neighboring Baywood Park (50.1% White), Belmont (47.9% White), Hillsborough (54.1% White), Highlands (52.5% White), and Burlingame (50.4% White).

San Mateo's Black Population

1,696 residents of San Mateo identify as Black, or 1.6%. This makes the Black share of the population of San Mateo roughly similar to the Black share of the population of California (5.4% Black). Of the 1,611 places in California, San Mateo is ranked #510 in terms of Black residents as a share of the population.

San Mateo is more Black than neighboring Baywood Park (0.6% Black), Belmont (1.2% Black), Hillsborough (0.4% Black), Highlands (0.8% Black), and Burlingame (0.9% Black).

San Mateo's Asian Population

27,786 residents of San Mateo identify as Asian, or 26.3%. This makes the Asian share of the population of San Mateo slightly larger than the Asian share of the population of California (15.1% Asian). Of the 1,611 places in California, San Mateo is ranked #97 in terms of Asian residents as a share of the population.

San Mateo is less Asian than neighboring Baywood Park (37% Asian), Belmont (29.4% Asian), Hillsborough (34.5% Asian), Highlands (30.5% Asian), and Burlingame (27.3% Asian).

San Mateo's Hispanic Population

27,198 residents of San Mateo identify as Hispanic, or 25.7%. This makes the Hispanic share of the population of San Mateo less than the Hispanic share of the population of California (39.4% Hispanic). Of the 1,611 places in California, San Mateo is ranked #738 in terms of Hispanic residents as a share of the population.

San Mateo is more Hispanic than neighboring Baywood Park (5.7% Hispanic), Belmont (12.4% Hispanic), Hillsborough (4.7% Hispanic), Highlands (6.3% Hispanic), and Burlingame (13.6% Hispanic).

San Mateo's Native American/Other Population

2,725 residents of San Mateo identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 2.6%. This makes the Native American/Other share of the population of San Mateo roughly similar to the Native American/Other share of the population of California (1.3% Native American/Other). Of the 1,611 places in California, San Mateo is ranked #284 in terms of Native American/Other residents as a share of the population.

San Mateo is more Native American/Other than neighboring Baywood Park (0.6% Native American/Other), Belmont (1.6% Native American/Other), Hillsborough (0.7% Native American/Other), Highlands (0.6% Native American/Other), and Burlingame (1.5% Native American/Other).

San Mateo's Multiracial Population

5,737 residents of San Mateo identify as Multiracial, or 5.4%. This makes the Multiracial share of the population of San Mateo roughly similar to the Multiracial share of the population of California (4.1% Multiracial). Of the 1,611 places in California, San Mateo is ranked #613 in terms of Multiracial residents as a share of the population.

San Mateo is less Multiracial than neighboring Baywood Park (6% Multiracial), Belmont (7.4% Multiracial), Hillsborough (5.6% Multiracial), Highlands (9.2% Multiracial), and Burlingame (6.3% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.