'Washington County, WI' definitions:

Washington -- U.S. County in Wisconsin

From: Gazetteer 2000
Name :
Washington -- U.S. County in Wisconsin
Population (2000) :
117493
Housing Units (2000) :
45808
Land area (2000) :
430.815782 sq. miles (1115.807705 sq. km)
Water area (2000) :
5.070106 sq. miles (13.131514 sq. km)
Total area (2000) :
435.885888 sq. miles (1128.939219 sq. km)
Located within :
Wisconsin (WI), FIPS 55
Location :
43.355608 N, 88.227813 W