Stanislaus County's 2026 population is estimated at 563,074, reflecting a 0.54% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Stanislaus County is the 16th largest county in California. The 2010 population was 515,137 and has grown 9.31% since 2010.
Data after 2023 is projected based on recent change
Overall: 34.9 years
Female: 35.6 years
Male: 34.2 years
There are 406,611 adults, (76,271 of whom are seniors) in Stanislaus County.
Female: 277,583 (50.1%)
Male: 276,407 (49.9%)
The racial composition of Stanislaus County includes 42.82% White, 17.4% other race, 6.13% Asian, and smaller percentages for Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 237,229 | 42.82% |
| Two or more races | 159,806 | 28.85% |
| Other race | 96,386 | 17.4% |
| Asian | 33,935 | 6.13% |
| Black or African American | 15,171 | 2.74% |
| Native American | 7,720 | 1.39% |
| Native Hawaiian or Pacific Islander | 3,743 | 0.68% |
Stanislaus County 's average per capita income is $49,493. Household income levels show a median of $81,468. The poverty rate stands at 13.53%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $107,798 | $132,798 |
| Families | $91,307 | $115,574 |
| Households | $81,468 | $105,867 |
| Non Families | $50,184 | $68,664 |
Average Income
Median Household Income
Poverty Rate