Macoupin County, Illinois
Founding: 1829 Parent county: Madison Namesake: Macoupin Creek Seat: Carlinville (1829–) Land area: 863 square miles Population (2020): 44,967 Population (historic): 1,990 (1830); 12,355 (1850); 32,726 (1870); 42,256 (1900); 48,703 (1930) Periods of population growth: pre-1830–1920; 1960–1980; 1990s Subdivisions: Eight cities; two towns; 17 villages; 26 townships Pre-1940 residences (estimated): 5,945 (27.4%) Pre-1940 housing survival rate: 49.2% Pre-1860 housing survival rate (1940): 10.7% Farm housing in disrepair (1950): 13% Nonfarm housing in disrepair (1950): 7.3% Average farmhouse value (1930): $1,359 Average outbuilding value (1930): $1,210 Average farmhouse size (1940): 6 rooms Number of farms (1920): 3,771 Average farm size (1920): 105.3 acres Sources of settlement: Germany, Kentucky, Missouri, Ohio, Pennsylvania, Tennessee, England, and Ir...