Oregon County, Missouri
Founding: 1845 (declared in 1841) Parent county: Ripley Namesake: The Oregon Territory Seat: Thomasville (1845–1859); Alton (1859–) Land area: 790 square miles Population (2020): 8,635 Population (historic): 1,432 (1850); 3,287 (1870); 10,467 (1890); 14,681 (1910); 12,220 (1930) Periods of population growth: pre-1850–1910; 1930s; 1970s; 1990–2010 Subdivisions: Three cities; one CDP; 18 townships Pre-1940 residences (estimated): 946 (17.2%) Pre-1940 housing survival rate: 23.3% Pre-1860 housing survival rate (1940): 1.6% Farm housing in disrepair (1950): 21.6% Nonfarm housing in disrepair (1950): 14.4% Average farmhouse value (1930): $537 Average outbuilding value (1930): $310 Average farmhouse size (1940): 3.8 rooms Number of farms (1920): 2,031 Average farm size (1920): 70.5 acres Sources of settlement: Arkansas, Tennessee, Illinois, and Kent...