Keokuk County, Iowa
Founding: 1844 (declared in 1837) Parent counties: Dubuque and unorganized territory Namesake: Keokuk, Sauk chief Seat: Lancaster (1848–1856); Sigourney (1844–1848, 1856–) Land area: 579 square miles Population (2020): 10,033 Population (historic): 4,822 (1850); 19,434 (1870); 23,862 (1890); 21,160 (1910); 19,148 (1930) Periods of population growth: pre-1850–1900 Subdivisions: 16 cities; 17 townships Pre-1940 residences (estimated): 2,316 (47.5%) Pre-1940 housing survival rate: 44.5% Pre-1860 housing survival rate (1940): 3% Farm housing in disrepair (1950): 7.9% Nonfarm housing in disrepair (1950): 6.2% Average farmhouse value (1930): $2,053 Average outbuilding value (1930): $1,959 Average farmhouse size (1940): 6.6 rooms Number of farms (1920): 2,764 Average farm size (1920): 109.8 acres Sources of settlement: Ohio, Germany, Pennsylvania, Illinois, Indiana, I...