Mifflin County, Pennsylvania
Founding: 1789 Parent counties: Cumberland and Northumberland Namesake: Thomas Mifflin, Pennsylvania governor Seat: Lewistown (1790–) Land area: 411 square miles Population (2020): 46,143 Population (historic): 7,562 (1790); 21,690 (1830); 16,340 (1860); 19,996 (1890); 40,335 (1930) Periods of population growth: pre-1790–1810; 1810–1830; 1840–1980; 1990–2010 Subdivisions: Six boroughs; 20 CDPs; ten townships Pre-1940 residences (estimated): 5,833 (26.8%) Pre-1940 housing survival rate: 63.6% Pre-1860 housing survival rate (1940): 31.8% Farm housing in disrepair (1950): 12.2% Nonfarm housing in disrepair (1950): 8.9% Average farmhouse value (1930): $1,826 Average outbuilding value (1930): $1,884 Average farmhouse size (1940): 6.8 rooms Number of farms (1920): 1,108 Average farm size (1920): 79.1 acres __________________________________________________...