'Lake County, MI' definitions:

Lake -- U.S. County in Michigan

From: Gazetteer 2000
Name :
Lake -- U.S. County in Michigan
Population (2000) :
11333
Housing Units (2000) :
13498
Land area (2000) :
567.435063 sq. miles (1469.650004 sq. km)
Water area (2000) :
7.168657 sq. miles (18.566736 sq. km)
Total area (2000) :
574.603720 sq. miles (1488.216740 sq. km)
Located within :
Michigan (MI), FIPS 26
Location :
43.951418 N, 85.831863 W