'DeKalb County, IL' definitions:
DeKalb -- U.S. County in Illinois
From: Gazetteer 2000
Name :
DeKalb -- U.S. County in Illinois
Population (2000) :
88969
Housing Units (2000) :
32988
Land area (2000) :
634.156450 sq. miles (1642.457595 sq. km)
Water area (2000) :
0.813404 sq. miles (2.106707 sq. km)
Total area (2000) :
634.969854 sq. miles (1644.564302 sq. km)
Located within :
Illinois (IL), FIPS 17
Location :
41.897263 N, 88.739318 W