Mariposa County, California

Mariposa County population, land area and income

Mariposa County had 17,048 residents in the Census Vintage 2024 estimate, on 1,448.8 square miles of land. It ranks 53rd of 58 in California by population and 31st by land area. That works out to 11.8 people per square mile, below the US average of 96.3, and in the bottom quarter nationally.

The median county-equivalent in California has 187,274 residents, so Mariposa County has 9% of the typical county's population.

Its SAIPE 2023 median household income of $64,352 is above the national county median among 3,143 counties with an estimate.

How Mariposa County's population changed since 2020

Mariposa County lost 85 residents between the July 2020 and July 2024 estimates, a drop of 0.5%. That ranks 27th of 58 in California for growth. The median California county changed by -0.6%, and the state as a whole by -0.2%.

Since the April 2020 estimates base, Mariposa County recorded 585 births and 925 deaths, a natural change of -340. Net international migration added +264 and net domestic migration, people moving to or from other US counties, came to +0. The largest single component was natural change, which removed 340 people.

Where Mariposa County is

The Census internal point of Mariposa County is at 37.574300, -119.911700. It sits in UTM zone 11N. The map shades California's 58 county-equivalents by population change from 2020 to 2024, darker for faster growth, with Mariposa County outlined. Dots are towns of 1,000+ people with residents in it.

Towns in Mariposa County

No incorporated place of 1,000 or more people has residents in Mariposa County. Its 17,048 residents live in smaller towns, census-designated places, or unincorporated land, which the subcounty estimates do not list at this size.

Counties bordering Mariposa County

The Census 2024 county adjacency file lists 4 neighbors for Mariposa County. The most populous is Stanislaus County, CA, with 556,972 residents. Distances run between Census internal points in a straight line.

• Stanislaus County

  556,972 people

  60 mi W

• Merced County

  296,774 people

  52 mi WSW

• Madera County

  165,432 people

  27 mi SSE

• Tuolumne County

  53,893 people

  31 mi N

Distance to Sacramento and the nearest big city

Sacramento is 110.5 miles NW of Mariposa County's internal point in a straight line. The nearest place of 100,000 or more is Clovis, CA (population 127,993), 53.1 miles away. The nearest place of 10,000 or more is Merced, CA (population 96,073), 36.2 miles away.

Mariposa County FIPS code

The FIPS code of Mariposa County is 06043: state code 06 for California plus county code 043. Use it as text, with the leading zero, when joining Census, BLS, or CDC county tables. SAIPE lists its 2023 median household income as $64,352.