Mariposa County, California

Mariposa County
County
The Mariposa County Courthouse (top) and Yosemite Valley from Tunnel View (bottom)
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[1]
Named for	Spanish word for "butterfly" and Mariposa Creek
County seat	Mariposa
Largest community	Mariposa (population) Greeley Hill (area)
Government
• Type	Council–CAO
• Body	Board of Supervisors[2]
• Chair	Rosemarie Smallcombe [3]
• Vice Chair	Miles Menetrey
• Board of Supervisors	Supervisors Rosemarie Smallcombe Shannon Poe Danette Toso Wayne Forsythe Miles Menetrey
• County Administrative Officer	Dallin Kimble
Area
• Total	1,463 sq mi (3,790 km2)
• Land	1,449 sq mi (3,750 km2)
• Water	14 sq mi (40 km2)
Highest elevation	12,040 ft (3,670 m)
Population  (2020)
• Total	17,131
• Density	12/sq mi (4.5/km2)
Time zone	UTC-8 (Pacific Standard Time)
• Summer (DST)	UTC-7 (Pacific Daylight Time)
Congressional district	5th
Website	mariposacounty.org

Mariposa County (/ˌmærɪˈpoʊzə, -sə/ ^ⓘ)^[4] is a county located in the U.S. state of California. As of the 2020 U.S. Census, the population was 17,131.^[5] The county seat is Mariposa.^[6] It is located in the western foothills of the Sierra Nevada mountains, north of Fresno, east of Merced, and southeast of Stockton.

The county's eastern section is the central portion of Yosemite National Park.

There are no incorporated cities in Mariposa County; however, there are communities recognized as census-designated places for statistical purposes. It also has the distinction of having no actual traffic signals anywhere in the county. (The only other counties in California with no incorporated cities are Alpine and Trinity.)