'Hamilton County, IL' definitions:
Hamilton -- U.S. County in Illinois
From: Gazetteer 2000
Name :
Hamilton -- U.S. County in Illinois
Population (2000) :
8621
Housing Units (2000) :
3983
Land area (2000) :
435.164039 sq. miles (1127.069640 sq. km)
Water area (2000) :
0.674315 sq. miles (1.746467 sq. km)
Total area (2000) :
435.838354 sq. miles (1128.816107 sq. km)
Located within :
Illinois (IL), FIPS 17
Location :
38.096779 N, 88.536242 W