Jackson -- U.S. County in Wisconsin Population (2000): 19100 Housing Units (2000): 8029 Land area (2000): 987.316057 sq. miles (2557.136741 sq. km) Water area (2000): 12.791785 sq. miles (33.130570 sq. km) Total area (2000): 1000.107842 sq. miles (2590.267311 sq. km) Located within: Wisconsin (WI), FIPS 55 Location: 44.328224 N, 90.861592 W Headwords: Jackson Jackson, WI Jackson County Jackson County, WI