'Middletown, IL' definitions:

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

From: Gazetteer 2000
Name :
Middletown, IL -- U.S. village in Illinois
Population (2000) :
434
Housing Units (2000) :
181
Land area (2000) :
0.239841 sq. miles (0.621185 sq. km)
Water area (2000) :
0.000000 sq. miles (0.000000 sq. km)
Total area (2000) :
0.239841 sq. miles (0.621185 sq. km)
FIPS code :
48853
Located within :
Illinois (IL), FIPS 17
Location :
40.100685 N, 89.591448 W
ZIP Codes (1990) :
62666
Note :
some ZIP codes may be omitted esp. for suburbs.