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About Diablo, California

Diablo is a census-designated place (CDP) in Contra Costa County, California, United States. The population was 1,158 at the 2010 census. It is located 2.5 miles (4.0 km) east-northeast of Danville. "Diablo" is Spanish for devil.

News from Diablo

Diablo Facts

  • Population Total: 1158
  • Square Miles: 1.357
  • Area Code: 925
  • Elevation: 528
  • Postal Codes: 94528
  • Timezone: Pacific