'Diablo, CA' definitions:

Diablo, CA -- U.S. Census Designated Place in California

From: Gazetteer 2000
Name :
Diablo, CA -- U.S. Census Designated Place in California
Population (2000) :
988
Housing Units (2000) :
347
Land area (2000) :
0.971884 sq. miles (2.517167 sq. km)
Water area (2000) :
0.000000 sq. miles (0.000000 sq. km)
Total area (2000) :
0.971884 sq. miles (2.517167 sq. km)
FIPS code :
19150
Located within :
California (CA), FIPS 06
Location :
37.835451 N, 121.957588 W
ZIP Codes (1990) :
94528
Note :
some ZIP codes may be omitted esp. for suburbs.