'Oak Forest, IL' definitions:

Oak Forest, IL -- U.S. city in Illinois

From: Gazetteer 2000
Name :
Oak Forest, IL -- U.S. city in Illinois
Population (2000) :
28051
Housing Units (2000) :
10022
Land area (2000) :
5.649316 sq. miles (14.631660 sq. km)
Water area (2000) :
0.052775 sq. miles (0.136687 sq. km)
Total area (2000) :
5.702091 sq. miles (14.768347 sq. km)
FIPS code :
54638
Located within :
Illinois (IL), FIPS 17
Location :
41.607583 N, 87.750575 W
ZIP Codes (1990) :
60452
Note :
some ZIP codes may be omitted esp. for suburbs.