Mono County, California

Mono County
County
Mono Lake in the Mono–Inyo Craters Mammoth Lakes Carson Peak Convict Lake Bodie Mt. Morrison in the Sierra Nevada
Seal Logo
Interactive map of Mono County
Location in the state of California
Coordinates: 37°55′N 118°52′W
Country	United States
State	California
Region	Eastern California
Founded	April 21, 1861 (1861-04-21)
Named for	Mono Lake, which is derived from Monachi, a Yokutsan name for native peoples of the Sierra Nevada
County seat	Bridgeport
Largest city	Mammoth Lakes
Government
• Type	Council–CAO
• Body	Board of Supervisors
• Chair	Jennifer Kreitz
• Vice Chair	Paul McFarland
• Chair Pro Tem	Rhonda Duggan
• Board of Supervisors	Supervisors Jennifer Kreitz Rhonda Duggan Paul McFarland John Peters Lynda Salcido
• County Administrative Officer	Bob Lawton
Area
• Total	3,132 sq mi (8,110 km2)
• Land	3,049 sq mi (7,900 km2)
• Water	83 sq mi (210 km2)
Highest elevation	14,252 ft (4,344 m)
Population  (2020)
• Total	13,195
• Estimate  (2025)	12,505
• Density	4.328/sq mi (1.671/km2)
GDP
• Total	$1.312 billion (2022)
Time zone	UTC-8 (Pacific Time Zone)
• Summer (DST)	UTC-7 (Pacific Daylight Time)
Area code	530/837, 760/442
Congressional district	3rd
Website	www.monocounty.ca.gov

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Mono County (/ˈmoʊnoʊ/ MOH-noh) is a county located in the east-central portion of the U.S. state of California. As of the 2020 United States census, its population was 13,195, making it the fourth-least populous county in California. The county seat is Bridgeport. The county is located east of the Sierra Nevada between Yosemite National Park and Nevada. The only incorporated town in the county is Mammoth Lakes, which is located at the foot of Mammoth Mountain. Other locations, such as June Lake, are also famous as skiing and fishing resorts. Located in the middle of the county is Mono Lake, a vital habitat for millions of migratory and nesting birds. The lake is located in a wild, natural setting, with pinnacles of tufa arising out of the salty and alkaline lake. Also located in Mono County is Bodie, the official state gold rush ghost town, which is now a California State Historic Park.