Not yet verified
US Post Office
Diablo, Contra Costa County
About
US Post Office is listed in the chamber’s directory under Transportation & Logistics at Po Box 9998 in Diablo, in Contra Costa County.
Details
Phone
(925) 837-3800
From public recordsLocation and service area
Po Box 9998
Diablo, CA 94528-9998
Get directions →Diablo, CA 94528-9998
How this listing was compiled
From public business records imported in 2025. Not yet confirmed by the business.
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