Stanislaus County Demographics

A map of Stanislaus County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
Hispanic	277,207	265,978	50.0%	48.1%
White	200,834	207,908	36.3%	37.6%
Asian	32,509	33,169	5.9%	6.0%
Multiracial	22,178	22,453	4.0%	4.1%
Black	14,369	14,302	2.6%	2.6%
Native American/Other	6,893	9,068	1.2%	1.6%

Stanislaus County, California has an estimated population of 553,990, a less than 1% change from the 552,878 recorded in the 2020 Census. The population is 50.0% Hispanic, 36.3% White, 5.9% Asian, 4.0% Multiracial, 2.6% Black, and 1.2% Native American/Other. This demographic dot map shows the population of Stanislaus County, with one dot drawn for each person counted by the Census, color-coded by race.

Stanislaus has become slightly less racially diverse since the 2020 Census. It is considerably 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 Stanislaus County, that probability was 62.1% in 2020 and 61.2% in the most recent ACS estimates.

Stanislaus County is ranked the 16th most populous county in California, out of 58 counties. Stanislaus County was ranked the 16th most populous county in the 2020 Census.

Stanislaus County's White Population

200,834 residents of Stanislaus County, or 36.3% of the population, identify as White. The share of White residents in Stanislaus County is slightly higher than in California overall, where 33.8% of the population is White. Stanislaus County ranks 40th statewide in terms of White residents as a share of the population, out of 58 counties.

Since the 2020 Census, Stanislaus County's White population has declined by an estimated 3.4%. White residents' share of Stanislaus County's population has decreased from 37.6% to 36.3%.

Stanislaus County is more White than neighboring Merced County (23.2% White), San Joaquin County (26.8% White), Santa Clara County (27.2% White), and Alameda County (27.4% White). Stanislaus County is less White than neighboring Calaveras County (76.4% White).

Stanislaus County's Black Population

14,369 residents of Stanislaus County, or 2.6% of the population, identify as Black. The share of Black residents in Stanislaus County is slightly lower than in California overall, where 5.2% of the population is Black. Stanislaus County ranks 21st statewide in terms of Black residents as a share of the population, out of 58 counties.

Since the 2020 Census, Stanislaus County's Black population has remained roughly the same. Black residents' share of Stanislaus County's population has remained roughly unchanged at 2.6%.

Stanislaus County is more Black than neighboring Santa Clara County (2.2% Black), and Calaveras County (1% Black). Stanislaus County is less Black than neighboring San Joaquin County (6.6% Black), and Alameda County (9.3% Black).

Stanislaus County's Asian Population

32,509 residents of Stanislaus County, or 5.9% of the population, identify as Asian. The share of Asian residents in Stanislaus County is lower than in California overall, where 15.3% of the population is Asian. Stanislaus County ranks 24th statewide in terms of Asian residents as a share of the population, out of 58 counties.

Since the 2020 Census, Stanislaus County's Asian population has declined by an estimated 2.0%. Asian residents' share of Stanislaus County's population has remained roughly unchanged at 5.9%.

Stanislaus County is more Asian than neighboring Calaveras County (2.2% Asian). Stanislaus County is less Asian than neighboring Merced County (7.1% Asian), San Joaquin County (18.2% Asian), Santa Clara County (40.3% Asian), and Alameda County (32.7% Asian).

Stanislaus County's Hispanic Population

277,207 residents of Stanislaus County, or 50.0% of the population, identify as Hispanic. The share of Hispanic residents in Stanislaus County is higher than in California overall, where 40.2% of the population is Hispanic. Stanislaus County ranks 13th statewide in terms of Hispanic residents as a share of the population, out of 58 counties.

Since the 2020 Census, Stanislaus County's Hispanic population has grown by an estimated 4.2%. Hispanic residents' share of Stanislaus County's population has increased from 48.1% to 50.0%.

Stanislaus County is more Hispanic than neighboring San Joaquin County (42.5% Hispanic), Santa Clara County (25% Hispanic), Calaveras County (14.5% Hispanic), and Alameda County (23.4% Hispanic). Stanislaus County is less Hispanic than neighboring Merced County (63.4% Hispanic).

Stanislaus County's Native American/Other Population

6,893 residents of Stanislaus County, or 1.2% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Stanislaus County is comparable to the share in California overall, where 1.2% of the population is Native American/Other. Stanislaus County ranks 30th statewide in terms of Native American/Other residents as a share of the population, out of 58 counties.

Since the 2020 Census, Stanislaus County's Native American/Other population has declined by an estimated 24.0%. Native American/Other residents' share of Stanislaus County's population has remained roughly unchanged at 1.2%.

Stanislaus County is more Native American/Other than neighboring Merced County (0.9% Native American/Other), and Santa Clara County (1.1% Native American/Other). Stanislaus County is less Native American/Other than neighboring San Joaquin County (1.3% Native American/Other), and Alameda County (1.6% Native American/Other).

Stanislaus County's Multiracial Population

22,178 residents of Stanislaus County, or 4.0% of the population, identify as Multiracial. The share of Multiracial residents in Stanislaus County is comparable to the share in California overall, where 4.4% of the population is Multiracial. Stanislaus County ranks 39th statewide in terms of Multiracial residents as a share of the population, out of 58 counties.

Since the 2020 Census, Stanislaus County's Multiracial population has declined by an estimated 1.2%. Multiracial residents' share of Stanislaus County's population has remained roughly unchanged at 4.0%.

Stanislaus County is more Multiracial than neighboring Merced County (2.9% Multiracial). Stanislaus County is less Multiracial than neighboring San Joaquin County (4.6% Multiracial), Santa Clara County (4.2% Multiracial), Calaveras County (4.6% Multiracial), and Alameda County (5.6% 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.