Greene County, Pennsylvania

Founding: 1796
Parent county: Washington

Namesake: Nathanael Greene, Continental Army general
Seat: Waynesburg (1796–)

Land area: 576 square miles

Population (2020): 35,954

Population (historic): 8,605 (1800); 19,147 (1840); 25,887 (1870); 28,281 (1900); 41,767 (1930)

Periods of population growth: pre-1800–1890; 1900–1950; 1970–1990

Subdivisions: Six boroughs; 14 CDPs; 20 townships

Pre-1940 residences (estimated): 5,263 (31.6%)
Pre-1940 housing survival rate: 51.8%
Pre-1860 housing survival rate (1940): 22.2%

Farm housing in disrepair (1950): 19%

Nonfarm housing in disrepair (1950): 10.9%
Average farmhouse value (1930): $1,955
Average outbuilding value (1930): $1,115
Average farmhouse size (1940): 6 rooms
Number of farms (1920): 3,168
Average farm size (1920): 95 acres
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Waynesburg

Namesake: Anthony Wayne, Continental Army general

Founding: 1796 (platting); 1800 (post office); 1816 (incorporation)

Population (2020): 3,987

Population (historic): 298 (1820); 1,272 (1870); 2,544 (1900); 4,915 (1930)

Periods of population growth: pre-1870; 1880–1910; 1920s; 1940s
Pre-1940 residences (estimated): 863 (50.9%)
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