Mariposa County, California
37°35′N 119°55′W / 37.58°N 119.91°W
Mariposa County | |
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Yosemite Valley in Yosemite National Park, showing El Capitan, Half Dome, and Bridalveil Fall (left to right) | |
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Flag Seal | |
Interactive map of Mariposa County | |
Location in the state of California | |
| Country | United States |
| State | California |
| Region | Sierra Nevada |
| Incorporated | February 18, 1850 |
| Named after | Spanish word for "butterfly" and Mariposa Creek |
| County seat | Mariposa |
| Largest community | Lake Don Pedro (population) Greeley Hill (area) |
| Government | |
| • Type | Council–CAO |
| • Body | Board of Supervisors |
| • Chair | Rosemarie Smallcombe |
| • Vice Chair | Miles Menetrey |
| • Board of Supervisors | Supervisors
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| • County Administrative Officer | Joe Lynch |
| Area | |
• Total | 1,463 sq mi (3,790 km2) |
| • Land | 1,449 sq mi (3,750 km2) |
| • Water | 14 sq mi (36 km2) |
| Highest elevation | 12,040 ft (3,670 m) |
| Population (2020) | |
• Total | 17,131 |
| • Density | 11.82/sq mi (4.565/km2) |
| GDP | |
| • Total | $1.036 billion (2024) |
| Time zone | UTC-8 (Pacific Standard Time) |
| • Summer (DST) | UTC-7 (Pacific Daylight Time) |
| Congressional district | 5th |
| Website | mariposacounty |
Mariposa County (/ˌmærɪˈpoʊzə, -sə/ ⓘ) is a county in the U.S. state of California. As of the 2020 U.S. census, the population was 17,131. The county seat is Mariposa. The county lies in the western foothills of the Sierra Nevada, north of Fresno, east of Merced, and southeast of Stockton. The eastern portion of the county encompasses the principal area of Yosemite National Park.
Mariposa County is one of only three counties in California that does not include any incorporated cities, along with Alpine and Trinity counties. The county includes 17 communities recognized as census-designated places for statistical purposes. It also has no permanent traffic signals anywhere within its borders.