'Lyndon, IL' definitions:

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

From: Gazetteer 2000
Name :
Lyndon, IL -- U.S. village in Illinois
Population (2000) :
566
Housing Units (2000) :
254
Land area (2000) :
0.820818 sq. miles (2.125908 sq. km)
Water area (2000) :
0.000000 sq. miles (0.000000 sq. km)
Total area (2000) :
0.820818 sq. miles (2.125908 sq. km)
FIPS code :
45278
Located within :
Illinois (IL), FIPS 17
Location :
41.716821 N, 89.923186 W
ZIP Codes (1990) :
61261
Note :
some ZIP codes may be omitted esp. for suburbs.