Greene County, Ohio

Founding: 1803
Parent counties: Hamilton and Ross

Namesake: Nathanael Greene, Continental Army general
Seat: Xenia (1804–)

Land area: 414 square miles

Population (2020): 167,966

Population (historic): 5,870 (1810); 21,946 (1850); 31,649 (1880); 31,613 (1900); 33,259 (1930)

Periods of population growth: pre-1810–1880; 1890s; 1910–2020

Subdivisions: Four cities; six villages; three CDPs; 12 townships

Pre-1940 residences (estimated): 6,503 (9.5%)
Pre-1940 housing survival rate: 59.9%
Pre-1860 housing survival rate (1940): 30.3%

Farm housing in disrepair (1950): 4.8%

Nonfarm housing in disrepair (1950): 6.6%
Average farmhouse value (1930): $1,973
Average outbuilding value (1930): $1,582
Average farmhouse size (1940): 6.8 rooms
Number of farms (1920): 2,373
Average farm size (1920): 90.1 acres
Sources of settlement: Virginia, Pennsylvania, Kentucky, Maryland, and New Jersey
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Xenia

Namesake: The Greek word xenía ("hospitality")

Founding: 1803 (platting); 1805 (post office); 1817 (incorporation)

Population (2020): 25,441

Population (historic): 429 (1810); 3,024 (1850); 7,026 (1880); 8,696 (1900); 10,507 (1930)

Periods of population growth: 1803–1970; 2000–2020
Pre-1940 residences (estimated): 1,803 (14.9%)

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