Foster City, CA Demographics

A map of Foster City's Population by Race

Foster City, California had a population of 33,805 in 2020. It was 31.8% White, 1.4% Black, 53.2% Asian, 7.2% Hispanic, 1.4% Native American/Other, and 5.1% Multiracial. This map presents the population of Foster City, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Of the 1,611 places in California, Foster City is the 245th 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).

Foster City's White Population

10,734 residents of Foster City identify as White, or 31.8%. This makes the White share of the population of Foster City roughly similar to the White share of the population of California (34.7% White). Of the 1,611 places in California, Foster City is ranked #1156 in terms of White residents as a share of the population.

Foster City is more White than neighboring North Fair Oaks (19.1% White). Foster City is less White than neighboring Redwood City (40.4% White), San Mateo (38.3% White), Belmont (47.9% White), and San Carlos (60.9% White).

Foster City's Black Population

479 residents of Foster City identify as Black, or 1.4%. This makes the Black share of the population of Foster City roughly similar to the Black share of the population of California (5.4% Black). Of the 1,611 places in California, Foster City is ranked #566 in terms of Black residents as a share of the population.

Foster City is more Black than neighboring Belmont (1.2% Black), San Carlos (0.8% Black), and North Fair Oaks (1.1% Black). Foster City is less Black than neighboring Redwood City (1.6% Black), and San Mateo (1.6% Black).

Foster City's Asian Population

17,992 residents of Foster City identify as Asian, or 53.2%. This makes the Asian share of the population of Foster City considerably larger than the Asian share of the population of California (15.1% Asian). Of the 1,611 places in California, Foster City is ranked #24 in terms of Asian residents as a share of the population.

Foster City is more Asian than neighboring Redwood City (16% Asian), San Mateo (26.3% Asian), Belmont (29.4% Asian), San Carlos (18.9% Asian), and North Fair Oaks (5.9% Asian).

Foster City's Hispanic Population

2,421 residents of Foster City identify as Hispanic, or 7.2%. This makes the Hispanic share of the population of Foster City considerably less than the Hispanic share of the population of California (39.4% Hispanic). Of the 1,611 places in California, Foster City is ranked #1424 in terms of Hispanic residents as a share of the population.

Foster City is less Hispanic than neighboring Redwood City (35.7% Hispanic), San Mateo (25.7% Hispanic), Belmont (12.4% Hispanic), San Carlos (11.1% Hispanic), and North Fair Oaks (69.9% Hispanic).

Foster City's Native American/Other Population

468 residents of Foster City identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 1.4%. This makes the Native American/Other share of the population of Foster City 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, Foster City is ranked #659 in terms of Native American/Other residents as a share of the population.

Foster City is more Native American/Other than neighboring San Carlos (1.1% Native American/Other). Foster City is less Native American/Other than neighboring Redwood City (1.5% Native American/Other), San Mateo (2.6% Native American/Other), Belmont (1.6% Native American/Other), and North Fair Oaks (1.7% Native American/Other).

Foster City's Multiracial Population

1,711 residents of Foster City identify as Multiracial, or 5.1%. This makes the Multiracial share of the population of Foster City roughly similar to the Multiracial share of the population of California (4.1% Multiracial). Of the 1,611 places in California, Foster City is ranked #688 in terms of Multiracial residents as a share of the population.

Foster City is more Multiracial than neighboring Redwood City (4.7% Multiracial), and North Fair Oaks (2.4% Multiracial). Foster City is less Multiracial than neighboring San Mateo (5.4% Multiracial), Belmont (7.4% Multiracial), and San Carlos (7.1% Multiracial).

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