Logan County, Ohio

Founding: 1818
Parent county: Champaign

Namesake: Benjamin Logan, Kentucky militiaman
Seat: Bellefontaine (1820–)

Land area: 458 square miles

Population (2020): 46,150

Population (historic): 3,159 (1820); 19,162 (1850); 26,267 (1880); 28,981 (1930)

Periods of population growth: pre-1820–1900; 1930–2000

Subdivisions: One city; 12 villages; three CDPs; 17 townships

Pre-1940 residences (estimated): 6,154 (26.6%)
Pre-1940 housing survival rate: 56.8%
Pre-1860 housing survival rate (1940): 15.5%

Farm housing in disrepair (1950): 5.8%

Nonfarm housing in disrepair (1950): 4.6%

Average farmhouse value (1930): $1,334
Average outbuilding value (1930): $1,369

Average farmhouse size (1940): 6.8 rooms
Number of farms (1920): 2,825
Average farm size (1920): 78.5 acres
Sources of settlement: Virginia, Pennsylvania, and Ireland
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Bellefontaine

Namesake: A French phrase meaning "beautiful spring"

Founding: 1820 (platting); 1820 (post office); 1835 (incorporation)

Population (2020): 14,115

Population (historic): 170 (1820); 1,222 (1850); 3,998 (1880); 9,543 (1930)

Periods of population growth: 1820–1960; 1970–2020
Pre-1940 residences (estimated): 2,001 (32.5%)

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