'Knox County, IL' definitions:
Knox -- U.S. County in Illinois
From: Gazetteer 2000
Name :
Knox -- U.S. County in Illinois
Population (2000) :
55836
Housing Units (2000) :
23717
Land area (2000) :
716.280750 sq. miles (1855.158547 sq. km)
Water area (2000) :
3.417497 sq. miles (8.851277 sq. km)
Total area (2000) :
719.698247 sq. miles (1864.009824 sq. km)
Located within :
Illinois (IL), FIPS 17
Location :
40.939735 N, 90.290825 W