'Casa de Oro' definitions:

Casa de Oro-Mount Helix, CA -- U.S. Census Designated Place in California

From: Gazetteer 2000
Name :
Casa de Oro-Mount Helix, CA -- U.S. Census Designated Place in California
Population (2000) :
18874
Housing Units (2000) :
7140
Land area (2000) :
6.838141 sq. miles (17.710704 sq. km)
Water area (2000) :
0.000000 sq. miles (0.000000 sq. km)
Total area (2000) :
6.838141 sq. miles (17.710704 sq. km)
FIPS code :
11691
Located within :
California (CA), FIPS 06
Location :
32.763359 N, 116.977474 W
Note :
some ZIP codes may be omitted esp. for suburbs.