'The Woodlands' definitions:

The Woodlands, TX -- U.S. Census Designated Place in Texas

From: Gazetteer 2000
Name :
The Woodlands, TX -- U.S. Census Designated Place in Texas
Population (2000) :
55649
Housing Units (2000) :
21014
Land area (2000) :
23.408839 sq. miles (60.628612 sq. km)
Water area (2000) :
0.472152 sq. miles (1.222867 sq. km)
Total area (2000) :
23.880991 sq. miles (61.851479 sq. km)
FIPS code :
72656
Located within :
Texas (TX), FIPS 48
Location :
30.177430 N, 95.503795 W
ZIP Codes (1990) :
77380 77381
Note :
some ZIP codes may be omitted esp. for suburbs.