Mariposa County
Mariposa County has lower-than-average household income, with a median household income of $68,412. Population has held roughly steady since 2000. Median home value has more than doubled since 2000, reaching $387,900. With a median age of 51.2, the population is older than the US median of 38.9. Households here earn about 31% less than the California median.
Population & growth
PEP 2025 EST:16,918 residents (Census Bureau Vintage 2025, released March 2026)
Income & economy
Housing
Race & ethnicity
Detailed origins & ancestry
+ 3 more hispanic origin groups with data
+ 25 more ancestry groups with data
Education
Commute & transportation
Work & employment
People & community
Places similar to Mariposa County
Compare Mariposa County to nearby counties
How many people live in Mariposa County, California?
Mariposa County, California has about 17,082 residents according to the 2024 American Community Survey.
What is the median household income in Mariposa County, California?
The typical household in Mariposa County, California earns about $68,412 a year. Half of households make more than that, and half make less.
Is Mariposa County, California expensive?
In Mariposa County, California, the median home is worth about $387,900, and the typical rent is about $1,305 a month.
How educated are people in Mariposa County, California?
About 31.8% of adults age 25 and over in Mariposa County, California hold a bachelor's degree or higher.
What is the poverty rate in Mariposa County, California?
About 14.0% of people in Mariposa County, California live below the federal poverty line.
Has Mariposa County, California grown since 1990?
Yes, Mariposa County, California has grown since 1990. The population has added about 2,780 residents, a change of about 19 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024