Westchester County, New York

Founding: 1683
Parent county: Unorganized territory
Namesake: Chester, England
Seat: Westchester (1683–1758); White Plains (1758–)
Land area: 430 square miles
Population (2020): 1,004,457
Population (historic): 23,978 (1790); 48,686 (1840); 131,348 (1870); 184,257 (1900); 520,947 (1930)
Periods of population growth: pre-1790–1870; 1880–1970; 1980–2020
Subdivisions: Six cities; 23 village; 19 towns
Pre-1940 residences (estimated): 102,897 (26.1%)
Pre-1940 housing survival rate: 66.7%
Pre-1860 housing survival rate (1940): 21.1%

Farm housing in disrepair (1950): 3.4%

Nonfarm housing in disrepair (1950): 3.4%

Average farmhouse value (1930): $9,998
Average outbuilding value (1930): $19,378

Average farmhouse size (1940): 7 rooms

Number of farms (1920): 1,538
Average farm size (1920): 38.1 acres
_________________________________________________________________________________
 

White Plains

 
Namesake: Unclear—likely a descriptive name
Founding: pre-1758 (founding); 1797 (post office); 1866 (incorporation)
Population (2020): 59,559
Population (historic): 2,381 (1880); 7,899 (1900); 35,830 (1930)
Periods of population growth: pre-1880–1960; 1980–2020
Pre-1940 residences (estimated): 8,095 (31.6%)
_________________________________________________________________________________

View and filter the data. Or see a map.

_________________________________________________________________________________