San Joaquin County Demographics

A map of San Joaquin County's Population by Race

San Joaquin County, California had a population of 779,233 in 2020. It was 27.7% White, 7.3% Black, 17.3% Asian, 41.8% Hispanic, 1.6% Native American/Other, and 4.4% Multiracial. This map presents the population of San Joaquin County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

San Joaquin County is the 14th most populous county of the 58 counties in California.

San Joaquin County's White Population

215,530 residents of San Joaquin County identify as White, or 27.7%. This makes the White share of the population of San Joaquin County slightly less than the White share of the population of California (34.7% White). Of the 58 counties in California, San Joaquin County is ranked #51 in terms of White residents as a share of the population.

San Joaquin County is less White than neighboring Stanislaus County (37.6% White), Sacramento County (41% White), Contra Costa County (39.1% White), Alameda County (28.1% White), and Solano County (34.2% White).

San Joaquin County's Black Population

56,898 residents of San Joaquin County identify as Black, or 7.3%. This makes the Black share of the population of San Joaquin County roughly similar to the Black share of the population of California (5.4% Black). Of the 58 counties in California, San Joaquin County is ranked #7 in terms of Black residents as a share of the population.

San Joaquin County is more Black than neighboring Stanislaus County (2.6% Black). San Joaquin County is less Black than neighboring Sacramento County (9.2% Black), Contra Costa County (8.4% Black), Alameda County (9.5% Black), and Solano County (13.2% Black).

San Joaquin County's Asian Population

134,684 residents of San Joaquin County identify as Asian, or 17.3%. This makes the Asian share of the population of San Joaquin County roughly similar to the Asian share of the population of California (15.1% Asian). Of the 58 counties in California, San Joaquin County is ranked #9 in terms of Asian residents as a share of the population.

San Joaquin County is more Asian than neighboring Stanislaus County (6% Asian), and Solano County (15.6% Asian). San Joaquin County is less Asian than neighboring Sacramento County (17.4% Asian), Contra Costa County (18.4% Asian), and Alameda County (32.1% Asian).

San Joaquin County's Hispanic Population

325,725 residents of San Joaquin County identify as Hispanic, or 41.8%. This makes the Hispanic share of the population of San Joaquin County roughly similar to the Hispanic share of the population of California (39.4% Hispanic). Of the 58 counties in California, San Joaquin County is ranked #18 in terms of Hispanic residents as a share of the population.

San Joaquin County is more Hispanic than neighboring Sacramento County (23.6% Hispanic), Contra Costa County (27% Hispanic), Alameda County (23.4% Hispanic), and Solano County (28.3% Hispanic). San Joaquin County is less Hispanic than neighboring Stanislaus County (48.1% Hispanic).

San Joaquin County's Native American/Other Population

12,304 residents of San Joaquin County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 1.6%. This makes the Native American/Other share of the population of San Joaquin County roughly similar to the Native American/Other share of the population of California (1.3% Native American/Other). Of the 58 counties in California, San Joaquin County is ranked #31 in terms of Native American/Other residents as a share of the population.

San Joaquin County is more Native American/Other than neighboring Contra Costa County (1.4% Native American/Other). San Joaquin County is less Native American/Other than neighboring Sacramento County (2.2% Native American/Other), Alameda County (1.7% Native American/Other), and Solano County (1.8% Native American/Other).

San Joaquin County's Multiracial Population

34,092 residents of San Joaquin County identify as Multiracial, or 4.4%. This makes the Multiracial share of the population of San Joaquin County roughly similar to the Multiracial share of the population of California (4.1% Multiracial). Of the 58 counties in California, San Joaquin County is ranked #37 in terms of Multiracial residents as a share of the population.

San Joaquin County is more Multiracial than neighboring Stanislaus County (4.1% Multiracial). San Joaquin County is less Multiracial than neighboring Sacramento County (6.5% Multiracial), Contra Costa County (5.7% Multiracial), Alameda County (5.3% Multiracial), and Solano County (6.8% Multiracial).

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