'Castle Rock, CO' definitions:

Castle Rock, CO -- U.S. town in Colorado

From: Gazetteer 2000
Name :
Castle Rock, CO -- U.S. town in Colorado
Population (2000) :
20224
Housing Units (2000) :
7447
Land area (2000) :
31.605303 sq. miles (81.857356 sq. km)
Water area (2000) :
0.000000 sq. miles (0.000000 sq. km)
Total area (2000) :
31.605303 sq. miles (81.857356 sq. km)
FIPS code :
12415
Located within :
Colorado (CO), FIPS 08
Location :
39.380822 N, 104.851310 W
ZIP Codes (1990) :
80104
Note :
some ZIP codes may be omitted esp. for suburbs.