'San Diego County, CA' definitions:

San Diego -- U.S. County in California

From: Gazetteer 2000
Name :
San Diego -- U.S. County in California
Population (2000) :
2813833
Housing Units (2000) :
1040149
Land area (2000) :
4199.890852 sq. miles (10877.666909 sq. km)
Water area (2000) :
325.624296 sq. miles (843.363020 sq. km)
Total area (2000) :
4525.515148 sq. miles (11721.029929 sq. km)
Located within :
California (CA), FIPS 06
Location :
32.904616 N, 117.062993 W