'Willowbrook, IL' definitions:

Willowbrook, IL -- U.S. Census Designated Place in Illinois

From: Gazetteer 2000
Name :
Willowbrook, IL -- U.S. Census Designated Place in Illinois
Population (2000) :
2130
Housing Units (2000) :
740
Land area (2000) :
3.375638 sq. miles (8.742863 sq. km)
Water area (2000) :
0.015522 sq. miles (0.040203 sq. km)
Total area (2000) :
3.391160 sq. miles (8.783066 sq. km)
FIPS code :
81938
Located within :
Illinois (IL), FIPS 17
Location :
41.449925 N, 87.541120 W
Note :
some ZIP codes may be omitted esp. for suburbs.

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

From: Gazetteer 2000
Name :
Willowbrook, IL -- U.S. village in Illinois
Population (2000) :
8967
Housing Units (2000) :
4504
Land area (2000) :
2.600775 sq. miles (6.735977 sq. km)
Water area (2000) :
0.025267 sq. miles (0.065440 sq. km)
Total area (2000) :
2.626042 sq. miles (6.801417 sq. km)
FIPS code :
81919
Located within :
Illinois (IL), FIPS 17
Location :
41.767153 N, 87.949281 W
Note :
some ZIP codes may be omitted esp. for suburbs.