Mono County, California

Founding: 1861
Parent counties: Calaveras, Fresno, and Mariposa

Namesake: Mono Lake
Seat: Aurora (1861–1863); Bridgeport (1863–)

Land area: 3,049 square miles

Population (2020): 13,195

Population (historic): 430 (1870); 7,499 (1880); 2,167 (1900); 1,360 (1930)

Periods of population growth: pre-1870–1880; 1890s; 1920–1940; 1950–2010

Subdivisions: One town; 15 CDPs

National Register listings: Five

Pre-1940 residences (estimated): 389 (2.8%)
Pre-1940 housing survival rate: 28.2%

Farm housing in disrepair (1950): 10.1%

Nonfarm housing in disrepair (1950): 11.1%

Average farmhouse value (1930): $2,062
Average outbuilding value (1930): $1,725
Average farmhouse size (1940): 4.2 rooms
Number of farms (1920): 74
Average farm size (1920): 118.1 acres
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Bridgeport

Namesake: A bridge crossing the East Walker River

Founding: 1859 (founding); 1864 (post office)

Population (2020): 553

Pre-1940 residences (estimated): 12 (3.2%)
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