Clinton County, Ohio

Founding: 1810
Parent counties: Highland and Warren

Namesake: George Clinton, New York governor
Seat: Wilmington (1810–)

Land area: 409 square miles

Population (2020): 42,018

Population (historic): 2,674 (1810); 15,719 (1840); 21,914 (1870); 24,202 (1900); 21,547 (1930)

Periods of population growth: pre-1810–1880; 1930–2010

Subdivisions: One city; eight villages; 13 townships

Pre-1940 residences (estimated): 3,126 (17.3%)
Pre-1940 housing survival rate: 61.4%
Pre-1860 housing survival rate (1940): 19.1%

Farm housing in disrepair (1950): 5.4%

Nonfarm housing in disrepair (1950): 8%
Average farmhouse value (1930): $1,608
Average outbuilding value (1930): $1,235
Average farmhouse size (1940): 6.5 rooms
Number of farms (1920): 2,411
Average farm size (1920): 96.1 acres
Sources of settlement: Virginia, Pennsylvania, Ireland, and North Carolina
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Wilmington

Namesake: Wilmington, Delaware

Founding: 1810 (platting as Clinton); 1813 (post office); 1828 (incorporation)

Population (2020): 12,664

Population (historic): 235 (1820); 1,238 (1850); 2,745 (1880); 3,613 (1900); 5,332 (1930)

Periods of population growth: 1810–1850; 1860–2020
Pre-1940 residences (estimated): 985 (16.6%)
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