'Randolph County, IL' definitions:

Randolph -- U.S. County in Illinois

From: Gazetteer 2000
Name :
Randolph -- U.S. County in Illinois
Population (2000) :
33893
Housing Units (2000) :
13328
Land area (2000) :
578.416056 sq. miles (1498.090643 sq. km)
Water area (2000) :
18.841744 sq. miles (48.799890 sq. km)
Total area (2000) :
597.257800 sq. miles (1546.890533 sq. km)
Located within :
Illinois (IL), FIPS 17
Location :
38.079211 N, 89.796877 W