'Perry County, IL' definitions:

Perry -- U.S. County in Illinois

From: Gazetteer 2000
Name :
Perry -- U.S. County in Illinois
Population (2000) :
23094
Housing Units (2000) :
9457
Land area (2000) :
440.961050 sq. miles (1142.083828 sq. km)
Water area (2000) :
5.850928 sq. miles (15.153833 sq. km)
Total area (2000) :
446.811978 sq. miles (1157.237661 sq. km)
Located within :
Illinois (IL), FIPS 17
Location :
38.054426 N, 89.349016 W