San Andreas, California Demographics & Population 2026

Population Overview

San Andreas is a small community located in California, within Calaveras County. The total population is 2,979. It ranks as the 796th most populous out of 1,570 Census-designated places in California.

Age Demographics

The median age in San Andreas is 57.0 years. This is 50% higher than the state median of 37.9 years. 16.6% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in San Andreas is $51,684. This is 48% lower than the state median of $99,122. It is also 36% lower than the national median of $80,734. The poverty rate stands at 28.1%. This is 134% higher than the state poverty rate of 12.0%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 6.5%. This is 2% lower than the state rate of 6.6%. The median home value is $419,700. Housing costs are 43% lower than the state median of $734,700. The home-value-to-income ratio of 8.1x suggests that housing affordability is a significant concern for many residents. 70.4% of occupied housing units are owner-occupied. This homeownership rate is 26% higher than the state average of 55.9%.

Race & Ethnicity

The largest racial or ethnic group in San Andreas is White (non-Hispanic), making up 72.5% of the population. Hispanic or Latino residents account for 23.8%. The White (non-Hispanic) population is significantly higher than the state average (72.5% vs 33.8%). The Black or African American population (0.8%) is well below the state average of 5.2%. The Asian population (1.2%) is well below the state average of 15.3%.

Education

21.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 42% 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 93.3%.

Data Sources & Methodology

All demographic data for San Andreas, California is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against California state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,570 Census-designated places in California. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.