Jackson -- U.S. County in Michigan Population (2000): 158422 Housing Units (2000): 62906 Land area (2000): 706.597484 sq. miles (1830.079005 sq. km) Water area (2000): 17.167247 sq. miles (44.462965 sq. km) Total area (2000): 723.764731 sq. miles (1874.541970 sq. km) Located within: Michigan (MI), FIPS 26 Location: 42.237635 N, 84.404455 W Headwords: Jackson Jackson, MI Jackson County Jackson County, MI