Warren County, Indiana

Founding: 1827
Parent county: Unorganized territory

Namesake: Joseph Warren, Boston revolutionary leader
Seat: Warrenton (1828–1829); Williamsport (1829–)

Land area: 365 square miles

Population (2020): 8,440

Population (historic): 2,861 (1830); 7,387 (1850); 10,204 (1870); 11,371 (1900); 9,167 (1930)

Periods of population growth: pre-1830–1880; 1890s; 1950–1980; 1990–2010

Subdivisions: Four towns; 12 townships

Pre-1940 residences (estimated): 1,022 (27.5%)
Pre-1940 housing survival rate: 50.7%
Pre-1860 housing survival rate (1940): 6.6%

Farm housing in disrepair (1950): 7.4%

Nonfarm housing in disrepair (1950): 18.7%

Average farmhouse value (1930): $1,660
Average outbuilding value (1930): $1,535

Average farmhouse size (1940): 6.1 rooms
Number of farms (1920): 1,286
Average farm size (1920): 139.3 acres
Sources of settlement: Ohio, Pennsylvania, Maryland, and Virginia

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Williamsport

Namesake: Unknown—perhaps William Harrison, platter

Founding: 1828 (platting); 1829 (post office); 1854 (incorporation)

Population (2020): 1,950

Population (historic): 279 (1850); 988 (1870); 1,245 (1900); 1,053 (1930)

Periods of population growth: pre-1850–1870; 1880–1900; 1930–2000; 2010s
Pre-1940 residences (estimated): 203 (24.3%)

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