Otsego County, New York

Founding: 1791
Parent county: Montgomery
Namesake: Otsego Lake
Seat: Cooperstown (1791–)
Land area: 1,002 square miles
Population (2020): 58,524
Population (historic): 21,343 (1800); 49,628 (1840); 48,967 (1870); 48,939 (1900); 46,710 (1930)
Periods of population growth: pre-1800–1830; 1850s; 1870s; 1920s; 1940–2010
Subdivisions: One city; nine villages; 18 CDPs; 24 towns
Pre-1940 residences (estimated): 13,319 (42.6%)
Pre-1940 housing survival rate: 81%
Pre-1860 housing survival rate (1940): 37.6%

Farm housing in disrepair (1950): 8.3%

Nonfarm housing in disrepair (1950): 4.5%

Average farmhouse value (1930): $1,622
Average outbuilding value (1930): $1,726
Average farmhouse size (1940): 8.3 rooms
Number of farms (1920): 4,770
Average farm size (1920): 81.5 acres
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Cooperstown

 
Namesake: William Cooper, land speculator
Founding: 1786 (platting as Otsego); 1795 (post office); 1807 (incorporation)
Population (2020): 1,794
Population (historic): 1,597 (1860); 2,199 (1880); 2,368 (1900); 2,909 (1930)
Periods of population growth: pre-1860–1890; 1900–1930; 1940s
Pre-1940 residences (estimated): 786 (69.7%)
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