Stanislaus County, California Demographics 2026

Population Overview

Stanislaus County is located in California with a total population of 553,990. It is the 16th most populous county out of 58 in California. The county encompasses 33 Census-designated places.

Age Demographics

The median age in Stanislaus County is 34.9 years. This is 8% lower than the state median of 37.9 years.

Economy, Income & Housing

The median household income in Stanislaus County is $81,468. This is 18% lower than the state median of $99,122. It is also about the same as the national median of $80,734. The poverty rate stands at 13.5%. This is 13% higher than the state poverty rate of 12.0%. The unemployment rate is 8.0%. This is 21% higher than the state rate of 6.6%. The median home value is $450,100. Housing costs are 39% lower than the state median of $734,700. The home-value-to-income ratio is 5.5x. 61.2% of occupied housing units are owner-occupied. This homeownership rate is 10% higher than the state average of 55.9%.

Race & Ethnicity

The largest racial or ethnic group in Stanislaus County is Hispanic or Latino, making up 50.0% of the population. White (non-Hispanic) residents account for 36.3%. The Black or African American population (2.6%) is well below the state average of 5.2%. The Asian population (5.9%) is well below the state average of 15.3%.

Education

19.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 47% lower than the state rate of 37.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 79.9%.

Data Sources & Methodology

All figures for Stanislaus County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against California and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.