San Mateo County had the highest median home value of 58 counties in 2021, at $1,225,900. Modoc County had the lowest, at $152,400. The median was $362,650 and the figure for California was $573,200. Source: the U.S. Census Bureau.
Value of owner-occupied housing units at the middle of the distribution, in US dollars of the last year of the period. Value is the owner's estimate of what the home and lot would sell for. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.
Owners' estimates, not sale prices. Medians outside the published range are coded 9,999 (under 10,000) or 2,000,001 (2,000,000 or more) and marked as estimated. For price changes use the FHFA house price indexes.
Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.
How to cite
U.S. Census Bureau. American Community Survey 5-year estimates, table B25077: median value (dollars), owner-occupied housing units. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b25077.dat. Retrieved 2026-10-09.
Use this data in your AI agent
Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:
Rank Counties in California by median home value using official data, and cite the source.
rank_places {"indicator":"median_home_value","level":"province","within":"California","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=median_home_value&level=province&within=California&limit=10
San Mateo County, with $1,225,900 in 2021, according to the U.S. Census Bureau.
Which county has the lowest median home value?
Modoc County, with $152,400 in 2021.
Where does this ranking come from?
Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B25077: median value (dollars), owner-occupied housing units. Retrieved 2026-10-09.
