Mariposa County, California
County seat: Mariposa · Population 16,918 (2025) · 1,449 sq mi
Mariposa County is the 53rd most populous of California's 58 counties, with 16,918 people (2025 estimate). Its county seat is Mariposa. The map shows its 0 cities and towns and the 4 neighboring counties.
Mariposa County facts
- County seat
- Mariposa
- Population (2025 estimate)
- 16,918 −1.3% since 2020
- Land area
- 1,449 sq mi 31st largest of 58
- Water area
- 14 sq mi
- Population density
- 12 per sq mi
- Established
- 1850
- Named after
- Mariposa Creek river in the United States of America
- Largest city
- Yosemite Valley 1,991
- Median household income
- $68,412
- Cities and towns
- 0 plus 17 CDPs
- ZIP codes
- 13
- Time zone
- Pacific
- FIPS code
- 06043
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Yosemite Valley | 1,991 | |
| Lake Don Pedro | 1,308 | |
| Mariposa | 1,137 | |
| Greeley Hill | 958 | |
| Catheys Valley | 939 | |
| El Portal | 505 | |
| Bootjack | 400 | |
| Bear Valley | 214 | |
| Midpines | 160 | |
| Wawona | 125 | |
| Mt. Bullion | 71 | |
| Foresta | 34 | |
| Yosemite West | 31 | |
| Buck Meadows | 0 | |
| Coulterville | 0 | |
| Fish Camp | 0 | |
| Hornitos | 0 |
ZIP codes in Mariposa County
13 ZIP codes reach into Mariposa County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 93601 also Madera County
- 93623 also Madera County
- 93653 also Madera County
- 95306
- 95311 also Tuolumne County
- 95318
- 95321 also Tuolumne County
- 95325
- 95329 also Tuolumne and Stanislaus counties
- 95338
- 95345
- 95369 also Merced County
- 95389 also Tuolumne County
Population of Mariposa County, 2020–2025
Mariposa County shrank by 215 people (−1.3%) between April 2020 and July 2025: 415 more deaths than births and a net gain of 200 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 17,130 |
| 2021 | 17,142 |
| 2022 | 17,066 |
| 2023 | 16,934 |
| 2024 | 16,948 |
| 2025 | 16,918 |
Neighboring counties
- Tuolumne County north · 53,160 people
- Madera County south · 167,927 people
- Merced County southwest · 297,260 people
- Stanislaus County west · 557,719 people
Printable Mariposa County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (113 KB)
- PNG (2400 px) (82 KB)
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Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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