Harrison County, Iowa
Founding: 1853 (declared in 1851) Parent counties: Pottawattamie and unorganized territory Namesake: William Henry Harrison, U.S. president Seat: Magnolia (1853–1875); Logan (1875–) Land area: 697 square miles Population (2020): 14,582 Population (historic): 3,621 (1860); 16,649 (1880); 25,597 (1900); 24,897 (1930) Periods of population growth: pre-1860–1900; 1910–1930; 1990s Subdivisions: Ten cities; two CDPs; 20 townships Pre-1940 residences (estimated): 2,874 (42.1%) Pre-1940 housing survival rate: 50% Farm housing in disrepair (1950): 9.2% Nonfarm housing in disrepair (1950): 9.2% Average farmhouse value (1930): $1,923 Average outbuilding value (1930): $1,948 Average farmhouse size (1940): 6 rooms Number of farms (1920): 2,881 Average farm size (1920): 114.8 acres Sources of settlement: Ohio, New York, Illinois, Indiana, and Pennsylvania _________________________________...