Mariposa County is a county located in the U.S. state of California. As of the 2020 U.S. Census, the population was 17,131. The county seat is Mariposa. It is located in the western foothills of the Sierra Nevada mountains, north of Fresno, east of Merced, and southeast of Stockton.
Country: United States
State: California
Region: Sierra Nevada
Incorporated: February 18, 1850
Named for: Spanish word for "butterfly" and Mariposa Creek
County seat: Mariposa
Largest community: Mariposa (population) · Greeley Hill (area)
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