'Oswego, IL' definitions:

Oswego, IL -- U.S. village in Illinois

From: Gazetteer 2000
Name :
Oswego, IL -- U.S. village in Illinois
Population (2000) :
13326
Housing Units (2000) :
4591
Land area (2000) :
6.582212 sq. miles (17.047851 sq. km)
Water area (2000) :
0.097275 sq. miles (0.251941 sq. km)
Total area (2000) :
6.679487 sq. miles (17.299792 sq. km)
FIPS code :
56887
Located within :
Illinois (IL), FIPS 17
Location :
41.690681 N, 88.341778 W
ZIP Codes (1990) :
60543
Note :
some ZIP codes may be omitted esp. for suburbs.