South San Francisco, CA Demographics

A map of South San Francisco's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
Asian	26,867	26,994	41.8%	40.8%
Hispanic	20,623	21,650	32.1%	32.8%
White	12,888	11,905	20.0%	18.0%
Multiracial	2,250	2,743	3.5%	4.1%
Black	987	1,184	1.5%	1.8%
Native American/Other	690	1,629	1.1%	2.5%

South San Francisco, California has an estimated population of 64,305, a slight decrease from the 66,105 recorded in the 2020 Census. The population is 41.8% Asian, 32.1% Hispanic, 20.0% White, 3.5% Multiracial, 1.5% Black, and 1.1% Native American/Other. This demographic dot map shows the population of South San Francisco, with one dot drawn for each person counted by the Census, color-coded by race.

South San Francisco has become less racially diverse since the 2020 Census. It is less diverse than California overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In South San Francisco, that probability was 69.1% in 2020 and 68.1% in the most recent ACS estimates.

South San Francisco is ranked the 143rd most populous place in California, out of 1,618 places. 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). South San Francisco was ranked the 142nd most populous place in the 2020 Census.

South San Francisco's White Population

12,888 residents of South San Francisco, or 20.0% of the population, identify as White. The share of White residents in South San Francisco is considerably lower than in California overall, where 33.8% of the population is White. South San Francisco ranks 1321st statewide in terms of White residents as a share of the population, out of 1,618 places.

Since the 2020 Census, South San Francisco's White population has grown by an estimated 8.3%. White residents' share of South San Francisco's population has increased from 18.0% to 20.0%.

South San Francisco is less White than neighboring Brisbane (42.9% White), Burlingame (51.3% White), Millbrae (29.4% White), San Bruno (28.6% White), and Hillsborough (51.2% White).

South San Francisco's Black Population

987 residents of South San Francisco, or 1.5% of the population, identify as Black. The share of Black residents in South San Francisco is slightly lower than in California overall, where 5.2% of the population is Black. South San Francisco ranks 479th statewide in terms of Black residents as a share of the population, out of 1,618 places.

Since the 2020 Census, South San Francisco's Black population has declined by an estimated 16.6%. Black residents' share of South San Francisco's population has remained roughly unchanged at 1.5%.

South San Francisco is more Black than neighboring Brisbane (0% Black), Burlingame (1% Black), Millbrae (0.8% Black), and Hillsborough (0.5% Black). South San Francisco is less Black than neighboring San Bruno (2.1% Black).

South San Francisco's Asian Population

26,867 residents of South San Francisco, or 41.8% of the population, identify as Asian. The share of Asian residents in South San Francisco is significantly higher than in California overall, where 15.3% of the population is Asian. South San Francisco ranks 42nd statewide in terms of Asian residents as a share of the population, out of 1,618 places.

Since the 2020 Census, South San Francisco's Asian population has remained roughly the same. Asian residents' share of South San Francisco's population has increased from 40.8% to 41.8%.

South San Francisco is more Asian than neighboring Brisbane (31% Asian), Burlingame (29.2% Asian), San Bruno (31.4% Asian), and Hillsborough (33.2% Asian). South San Francisco is less Asian than neighboring Millbrae (48.1% Asian).

South San Francisco's Hispanic Population

20,623 residents of South San Francisco, or 32.1% of the population, identify as Hispanic. The share of Hispanic residents in South San Francisco is lower than in California overall, where 40.2% of the population is Hispanic. South San Francisco ranks 596th statewide in terms of Hispanic residents as a share of the population, out of 1,618 places.

Since the 2020 Census, South San Francisco's Hispanic population has declined by an estimated 4.7%. Hispanic residents' share of South San Francisco's population has decreased from 32.8% to 32.1%.

South San Francisco is more Hispanic than neighboring Brisbane (17.9% Hispanic), Burlingame (12.2% Hispanic), Millbrae (13.9% Hispanic), San Bruno (29.2% Hispanic), and Hillsborough (4.5% Hispanic).

South San Francisco's Native American/Other Population

690 residents of South San Francisco, or 1.1% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in South San Francisco is comparable to the share in California overall, where 1.2% of the population is Native American/Other. South San Francisco ranks 302nd statewide in terms of Native American/Other residents as a share of the population, out of 1,618 places.

Since the 2020 Census, South San Francisco's Native American/Other population has declined by an estimated 57.6%. Native American/Other residents' share of South San Francisco's population has decreased from 2.5% to 1.1%.

South San Francisco is more Native American/Other than neighboring Brisbane (0.7% Native American/Other). South San Francisco is less Native American/Other than neighboring Burlingame (1.7% Native American/Other), Millbrae (3% Native American/Other), San Bruno (3.7% Native American/Other), and Hillsborough (2.4% Native American/Other).

South San Francisco's Multiracial Population

2,250 residents of South San Francisco, or 3.5% of the population, identify as Multiracial. The share of Multiracial residents in South San Francisco is comparable to the share in California overall, where 4.4% of the population is Multiracial. South San Francisco ranks 936th statewide in terms of Multiracial residents as a share of the population, out of 1,618 places.

Since the 2020 Census, South San Francisco's Multiracial population has declined by an estimated 18.0%. Multiracial residents' share of South San Francisco's population has decreased from 4.1% to 3.5%.

South San Francisco is less Multiracial than neighboring Brisbane (7.5% Multiracial), Burlingame (4.6% Multiracial), Millbrae (4.6% Multiracial), San Bruno (5% Multiracial), and Hillsborough (8.2% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.