Columbia -- U.S. County in Wisconsin Population (2000): 52468 Housing Units (2000): 22685 Land area (2000): 773.790713 sq. miles (2004.108661 sq. km) Water area (2000): 21.914019 sq. miles (56.757045 sq. km) Total area (2000): 795.704732 sq. miles (2060.865706 sq. km) Located within: Wisconsin (WI), FIPS 55 Location: 43.459182 N, 89.344149 W Headwords: Columbia Columbia, WI Columbia County Columbia County, WI