'Charleston, IL' definitions:

Charleston, IL -- U.S. city in Illinois

From: Gazetteer 2000
Name :
Charleston, IL -- U.S. city in Illinois
Population (2000) :
21039
Housing Units (2000) :
8148
Land area (2000) :
7.992815 sq. miles (20.701294 sq. km)
Water area (2000) :
0.679737 sq. miles (1.760511 sq. km)
Total area (2000) :
8.672552 sq. miles (22.461805 sq. km)
FIPS code :
12567
Located within :
Illinois (IL), FIPS 17
Location :
39.488721 N, 88.178976 W
ZIP Codes (1990) :
61920
Note :
some ZIP codes may be omitted esp. for suburbs.