Diablo Zip Codes - Contra Costa County CA

Diablo, CA Zip Code Map

Diablo, CA is a city located in Contra Costa County, California and has a land area of 1.15 square miles (2.98 km2). The water area for the city is 0.00 square miles or 0.00 km2. There is one unique zip code in Diablo, California and it is 94528. The area code(s) for Diablo is 925.

Zip Codes for Diablo, CA (1)
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94528 Diablo Contra Costa

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