Hardin County, Ohio

Founding: 1833 (declared in 1820)
Parent county: Unorganized territory

Namesake: John Hardin, Virginia soldier
Seat: Kenton (1833–)

Land area: 470 square miles

Population (2020): 30,696

Population (historic): 4,598 (1840); 13,570 (1860); 27,023 (1880); 31,187 (1900); 27,635 (1930)

Periods of population growth: 1830–1900; 1940–1980; 1990–2010

Subdivisions: One city; eight villages; one CDP; 15 townships

Pre-1940 residences (estimated): 4,261 (32.5%)
Pre-1940 housing survival rate: 55.8%
Pre-1860 housing survival rate (1940): 6.5%

Farm housing in disrepair (1950): 8.3%

Nonfarm housing in disrepair (1950): 8%

Average farmhouse value (1930): $1,485
Average outbuilding value (1930): $1,479
Average farmhouse size (1940): 6.8 rooms
Number of farms (1920): 3,052
Average farm size (1920): 80.5 acres
Sources of settlement: Pennsylvania, Germany, Virginia, Switzerland, and New York
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Kenton

Namesake: Simon Kenton, explorer

Founding: 1833 (platting); 1834 (post office); 1845 (incorporation)

Population (2020): 7,947

Population (historic): 299 (1840); 2,610 (1870); 6,852 (1900); 7,069 (1930)

Periods of population growth: 1833–1920; 1930–1960; 1970s

Pre-1940 residences (estimated): 1,189 (31.6%)

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