Zip Area Code

Diablo, California

Diablo, California, in Contra Costa County, has ZIP code 94528 and area code 925.

ZIP code
94528
Area code
925
Time zone
Pacific Time
Coordinates
37.8387, -121.9667

ZIP codes in Diablo

ZIP codePost officeCountyArea codes
94528DiabloContra Costa County925

Area code for Diablo

  • Area code 925

    In service since March 14, 1998. Local calls are dialed with 1 plus ten digits.

Time zone

Diablo is in the Pacific Time zone.

Towns near Diablo