Demographics of Stanislaus County, California

Stanislaus County, California had 557,719 people on July 1, 2025, by the Census Bureau’s estimate: +4,017 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

Stanislaus County, in four figures

557,719
Population: July 1, 2025, Vintage 2025 estimate.; +0.7%
Change since July 2020: +4,017 people.; 34.9 ±0.1
Median age: ACS 2020–⁠2024.; $81,468 ±$1,473
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

Stanislaus County, California's population grew 0.7% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Stanislaus County, California's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

Stanislaus County, California's population grew 0.7% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Stanislaus County, California's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	553,702	100.0	100.0
2021	553,047	99.9	100.2
2022	552,453	99.8	100.7
2023	554,459	100.1	101.6
2024	557,372	100.7	102.5
2025	557,719	100.7	103.1

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Population of Stanislaus County, California on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	553,702	+418	+728	+6	−443
2021	553,047	−655	+1,199	+321	−2,468
2022	552,453	−594	+2,005	+1,901	−4,434
2023	554,459	+2,006	+2,113	+2,955	−3,060
2024	557,372	+2,913	+2,063	+3,153	−2,284
2025	557,719	+347	+2,007	+724	−2,425

Age, 2020–2024

The median age is 34.9 ±0.1: for men 34.2 ±0.2 and for women 35.6 ±0.1. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Stanislaus County by age, ACS 2020–2024
Age	People	Share	California	United States
Under 5	36,821 ±109	6.6% ±<0.1	5.5% ±<0.1	5.6% ±<0.1
5 to 17	110,558 ±1,708	20.0% ±0.3	16.5% ±<0.1	16.3% ±<0.1
18 to 24	52,244 ±1,405	9.4% ±0.3	9.1% ±<0.1	9.1% ±<0.1
25 to 44	152,786 ±1,907	27.6% ±0.3	28.7% ±<0.1	26.9% ±<0.1
45 to 64	125,310 ±1,631	22.6% ±0.3	24.6% ±<0.1	24.8% ±<0.1
65 and over	76,271 ±1,715	13.8% ±0.3	15.7% ±<0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $81,468 ±$1,473, and income per person $34,849 ±$575, in 2024 dollars. The median is $99,122 ±$310 in California and $80,734 ±$166 in the United States.

Households by income

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Households in Stanislaus County by income, ACS 2020–2024
Household income	Households	Share	California	United States
Under $25,000	24,112 ±1,345	13.6% ±0.8	12.5% ±0.1	14.6% ±<0.1
$25,000 to $49,999	28,598 ±1,560	16.1% ±0.9	13.3% ±0.1	16.7% ±<0.1
$50,000 to $74,999	29,242 ±1,298	16.4% ±0.7	13.0% ±0.1	15.5% ±<0.1
$75,000 to $99,999	24,225 ±1,355	13.6% ±0.8	11.6% ±0.1	12.6% ±<0.1
$100,000 to $149,999	34,935 ±1,442	19.6% ±0.8	17.8% ±0.1	17.5% ±<0.1
$150,000 to $199,999	16,618 ±886	9.3% ±0.5	11.3% ±0.1	9.6% ±<0.1
$200,000 or more	20,144 ±1,137	11.3% ±0.6	20.5% ±0.1	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Stanislaus County by age, ACS 2020–2024
Age	Below poverty	Rate	California	United States
All ages	74,260 ±3,832	13.5% ±0.7	12.0% ±0.1	12.5% ±0.1
Under 18	25,260 ±1,661	17.4% ±1.1	15.0% ±0.1	16.1% ±0.1
18 to 59	34,381 ±1,880	11.5% ±0.6	11.0% ±0.1	11.6% ±0.1
60 and over	14,619 ±1,104	14.0% ±1.0	11.5% ±0.1	11.0% ±<0.1

Housing, 2020–2024

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Housing in Stanislaus County, ACS 2020–2024
Measure	Stanislaus County	California	United States
Housing units	185,149 ±132	14,644,735 ±1,665	143,775,355 ±10,234
Occupied	96.1% ±0.4	92.5% ±0.1	89.9% ±0.1
Vacant	3.9% ±0.4	7.5% ±0.1	10.1% ±0.1
Owner occupied	61.2% ±0.9	55.9% ±0.3	65.2% ±0.3
Renter occupied	38.8% ±1.0	44.1% ±0.2	34.8% ±0.1
Median home value	$450,100 ±$3,186	$734,700 ±$1,307	$332,700 ±$236
Median gross rent	$1,623 ±$24	$2,036 ±$5	$1,413 ±$2
Median year built	1981 ±1	1976 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Stanislaus County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	California	United States
Hispanic or Latino	277,207 ±0	50.0% ±<0.1	40.2% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	200,834 ±931	36.3% ±0.2	33.8% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	14,369 ±822	2.6% ±0.1	5.2% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	32,509 ±980	5.9% ±0.2	15.3% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	1,523 ±368	0.3% ±0.1	0.3% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	3,312 ±314	0.6% ±0.1	0.3% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	2,058 ±602	0.4% ±0.1	0.6% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	22,178 ±1,369	4.0% ±0.2	4.4% ±<0.1	4.3% ±<0.1

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Stanislaus County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	California	United States
Born in the state	380,237 ±3,982	68.6% ±0.7	56.5% ±0.1	57.3% ±<0.1
Born in another state	50,727 ±1,961	9.2% ±0.4	15.0% ±0.1	26.9% ±<0.1
Born a citizen outside the states	6,732 ±862	1.2% ±0.2	1.5% ±<0.1	1.7% ±<0.1
Born abroad	116,294 ±3,189	21.0% ±0.6	27.0% ±0.1	14.1% ±<0.1
Naturalized citizens	55,402 ±2,085	10.0% ±0.4	14.7% ±0.1	7.4% ±<0.1
Not citizens	60,892 ±2,738	11.0% ±0.5	12.3% ±0.1	6.8% ±<0.1

Stanislaus County among the counties of California

16th of 58 by population, July 2025. Every one is listed on the California page.

Counties of California near Stanislaus County in population, July 2025
County	July 2025	Change since 2020
Kern County	927,068	+2.3%
Ventura County	830,851	−1.5%
San Francisco County	826,079	−5.6%
San Joaquin County	823,815	+5.5%
San Mateo County	743,568	−2.5%
Stanislaus County	557,719	+0.7%
Sonoma County	486,444	−0.4%
Tulare County	485,146	+2.4%
Solano County	455,376	+0.5%
Placer County	442,081	+8.9%
Santa Barbara County	442,065	−1.4%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026