According to our records, this business is located at 4100 Alhambra Ave. in Martinez (in Contra Costa County), California 94553, the location GPS coordinates are: 37.992597 (latitude), -122.13165 (longitude). Martinez Post Office is categorized under Post Offices (SIC code 4311). Known organization branch manager is Anthony Daneil. You can contact the company by phone at (925) 228-2722.