Founding: 1854 (declared in 1853) Parent county: Jackson Namesake: George Rogers Clark, Virginia militia officer Seat: Neillsville (1855–) Land area: 1,210 square miles Population (2020): 34,659 Population (historic): 789 (1860); 10,715 (1880); 25,848 (1900); 34,165 (1930) Periods of population growth: pre-1860–1920; 1970s; 1990–2010 Subdivisions: Seven cities; four villages; two CDPs; 33 towns National Register listings: 22 Pre-1940 residences (estimated): 4,150 (27.7%) Pre-1940 housing survival rate: 57.1% Pre-1860 housing survival rate (1940): 7.1% Farm housing in disrepair (1950): 7.2% Nonfarm housing in disrepair (1950): 4.9% Average farmhouse value (1930): $1,651 Average outbuilding value (1930): $2,033 Average farmhouse size (1940): 6.2 rooms Number of farms (1920): 5,116 Average farm size (1920): 38.3 acres Sources of settlement: Germany, New York, Illinois, Norway, Canada, Minnesota, and Poland _____________________________________________________________
