Warren County, Iowa

 

Founding: 1849 (declared in 1846)
Parent county: Unorganized territory

Namesake: Joseph Warren, Boston revolutionary leader
Seat: Indianola (1849–)

Land area: 570 square miles

Population (2020): 52,403

Population (historic): 961 (1850); 17,980 (1870); 18,269 (1890); 18,194 (1910); 17,700 (1930)

Periods of population growth: pre-1850–1880; 1890s; 1940–2020

Subdivisions: 14 cities; 16 townships

National Register listings: 13

Pre-1940 residences (estimated): 2,340 (11.9%)
Pre-1940 housing survival rate: 52.3%
Pre-1860 housing survival rate (1940): 3.9%

Farm housing in disrepair (1950): 9.9%

Nonfarm housing in disrepair (1950): 7%

Average farmhouse value (1930): $1,690
Average outbuilding value (1930): $1,509
Average farmhouse size (1940): 6.2 rooms
Number of farms (1920): 2,402
Average farm size (1920): 118.3 acres
Sources of settlement: Ohio, Indiana, Illinois, and Pennsylvania
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Indianola

Namesake: Indianola, Texas

Founding: 1849 (platting); 1849 (post office); 1863 (incorporation)

Population (2020): 15,833

Population (historic): 836 (1860); 2,146 (1880); 3,261 (1900); 3,488 (1930)

Periods of population growth: 1849–1920; 1930–2020
Pre-1940 residences (estimated): 943 (14.9%)
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