Sonoma County
Sonoma County is wealthier than most US places, with a median household income of $104,674. Population has held roughly steady since 2000. Median home value has roughly tripled since 2000, reaching $815,500. It ranks in the top 1% of US counties for household income.
Population & growth
PEP 2025 EST:486,444 residents (Census Bureau Vintage 2025, released March 2026)
Income & economy
Housing
Race & ethnicity
Detailed origins & ancestry
+ 10 more hispanic origin groups with data
+ 7 more asian origin groups with data
+ 48 more ancestry groups with data
Education
Commute & transportation
Work & employment
People & community
Places similar to Sonoma County
Compare Sonoma County to nearby counties
How many people live in Sonoma County, California?
Sonoma County, California has about 485,040 residents according to the 2024 American Community Survey.
What is the median household income in Sonoma County, California?
The typical household in Sonoma County, California earns about $104,674 a year. Half of households make more than that, and half make less.
Is Sonoma County, California expensive?
In Sonoma County, California, the median home is worth about $815,500, and the typical rent is about $2,158 a month.
How educated are people in Sonoma County, California?
About 38.5% of adults age 25 and over in Sonoma County, California hold a bachelor's degree or higher.
What is the poverty rate in Sonoma County, California?
About 8.9% of people in Sonoma County, California live below the federal poverty line.
Has Sonoma County, California grown since 1990?
Yes, Sonoma County, California has grown since 1990. The population has added about 96,818 residents, a change of about 25 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024