'McHenry County, IL' definitions:
McHenry -- U.S. County in Illinois
From: Gazetteer 2000
Name :
McHenry -- U.S. County in Illinois
Population (2000) :
260077
Housing Units (2000) :
92908
Land area (2000) :
603.508137 sq. miles (1563.078834 sq. km)
Water area (2000) :
7.623987 sq. miles (19.746035 sq. km)
Total area (2000) :
611.132124 sq. miles (1582.824869 sq. km)
Located within :
Illinois (IL), FIPS 17
Location :
42.296401 N, 88.353772 W