Erie County, New York

Founding: 1821
Parent county: Niagara
Namesake: Lake Erie
Seat: Buffalo (1821–)
Land area: 1,043 square miles
Population (2020): 954,236
Population (historic): 35,719 (1830); 100,993 (1850); 178,699 (1870); 433,686 (1900); 762,408 (1930)
Periods of population growth: pre-1830–1970; 2010s
Subdivisions: Three cities; 15 villages; 17 CDPs; 25 towns
Pre-1940 residences (estimated): 130,106 (30.3%)
Pre-1940 housing survival rate: 60.4%
Pre-1860 housing survival rate (1940): 26%

Farm housing in disrepair (1950): 9%

Nonfarm housing in disrepair (1950): 4.2%

Average farmhouse value (1930): $2,676
Average outbuilding value (1930): $2,201

Average farmhouse size (1940): 7 rooms

Number of farms (1920): 7,486
Average farm size (1920): 52.8 acres
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Buffalo

 
Namesake: Buffalo Creek
Founding: 1797 (founding); 1816 (post office); 1832 (incorporation)
Population (2020): 278,349
Population (historic): 1,508 (1810); 18,213 (1840); 117,714 (1870); 352,387 (1900); 573,076 (1930)
Periods of population growth: pre-1810–1950; 2010s
Pre-1940 residences (estimated): 80,902 (61.7%)
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