'Columbia County, WI' definitions:

Columbia -- U.S. County in Wisconsin

From: Gazetteer 2000
Name :
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