'Green Lake County, WI' definitions:

Green Lake -- U.S. County in Wisconsin

From: Gazetteer 2000
Name :
Green Lake -- U.S. County in Wisconsin
Population (2000) :
19105
Housing Units (2000) :
9831
Land area (2000) :
354.281654 sq. miles (917.585232 sq. km)
Water area (2000) :
26.154038 sq. miles (67.738644 sq. km)
Total area (2000) :
380.435692 sq. miles (985.323876 sq. km)
Located within :
Wisconsin (WI), FIPS 55
Location :
43.817523 N, 89.031104 W