Overview
Mariposa County 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.
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