List of US Post Office Locations in Contra Costa County | |||||
|---|---|---|---|---|---|
| Name | Address | County | Hours | Phone | |
| Alamo | 160 Alamo Plaza, Alamo, CA 94507 | Contra Costa County | Mo-Fr 09:00-17:00 Sa 09:00-13:00 | +1 925-935-9953 | |
| Antioch | 2730 W Tregallas Rd, Antioch, CA 94509 | Contra Costa County | Mo-Fr 08:30-17:00 Sa 09:30-14:00 | +1 925-757-0379 | |
| Atlantic Plaza | 296 Atlantic Ave, Pittsburg, CA 94565 | Contra Costa County | Mo-Fr 09:00-17:00 Sa 10:00-15:00 | +1 925-432-2741 | |
| Bay Point | 646 Port Chicago Hwy, Bay Point, CA 94565 | Contra Costa County | Mo-Fr 09:00-17:00 Sa 10:00-14:00 | +1 925-432-2741 | |
| Bethel Island | 6444 Bethel Island Rd, Bethel Island, CA 94511 | Contra Costa County | Mo-Fr 09:30-17:00 Sa 09:30-12:00 | +1 925-684-2561 | |
| Brentwood | 18 Oak St, Brentwood, CA 94513 | Contra Costa County | Mo-Fr 09:00-17:00 Sa 10:00-13:00 | +1 925-240-2065 | |
| Byron | 3852 Main St, Byron, CA 94514 | Contra Costa County | Mo-Fr 09:30-12:30,13:00-16:30 Sa 10:00-12:00 | +1 925-634-2600 | |
| Byron Ca Discovery Bay | 3345 Bixler Rd, Discovery Bay, CA 94505 | Contra Costa County | Mo-Fr 09:00-17:00 Sa 09:00-13:00 | +1 925-634-1164 | |
| Canyon | 99 Pinehurst Rd, Canyon, CA 94516 | Contra Costa County | Mo-Fr 09:00-12:00,13:00-16:00 Sa 07:30-10:00 | +1 925-376-5600 | |
| Casa Correo | 4494 Treat Blvd, Concord, CA 94521 | Contra Costa County | Mo-Fr 09:00-17:00 | +1 925-687-0533 | |
| Clayton | 6150 Center St, Clayton, CA 94517 | Contra Costa County | Mo-Fr 09:00-17:00 Sa 10:00-14:00 | +1 925-672-4337 | |
| Concord | 2121 Meridian Park Blvd, Concord, CA 94520 | Contra Costa County | Mo-Fr 09:00-17:00 Sa 09:00-14:00 | +1 925-687-0533 | |
| Court | 815 Court St, Martinez, CA 94553 | Contra Costa County | Mo-Fr 08:30-17:00 | +1 925-229-4795 | |
| Crockett | 695 Pomona St, Crockett, CA 94525 | Contra Costa County | Mo-Fr 08:30-17:00 | +1 510-787-9854 | |
| Danville | 2605 Camino Tassajara, Danville, CA 94526 | Contra Costa County | Mo-Fr 08:30-17:00 Sa 09:00-14:00 | +1 925-736-0775 | |
| Danville Square | 23 Railroad Ave, Danville, CA 94526 | Contra Costa County | Mo-Fr 09:00-16:30 | +1 925-314-9650 | |
| Diablo | 1701 El Nido Ct, Diablo, CA 94528 | Contra Costa County | Mo-Fr 09:00-12:00,13:00-16:30 Sa 09:00-12:00 | +1 925-837-3800 | |
| El Cerrito | 11135 San Pablo Ave, El Cerrito, CA 94530 | Contra Costa County | Mo-Fr 08:00-17:00 Sa 08:00-12:00 | +1 510-235-5643 | |
| El Cerrito Carrier Annex | 11245 San Pablo Ave, El Cerrito, CA 94530 | Contra Costa County | +1 510-237-5746 | ||
| El Sobrante | 535 Appian Way, , CA 94803 | Contra Costa County | Mo-Fr 08:30-17:00 Sa 09:00-13:00 | +1 510-262-6910 | |
| Fairmount | 6324 Fairmount Ave, El Cerrito, CA 94530 | Contra Costa County | Mo-Fr 09:00-16:30 | +1 510-525-0327 | |
| Hercules | 1611 Sycamore Ave, Hercules, CA 94547 | Contra Costa County | Mo-Fr 09:00-17:00 Sa 10:00-14:00 | +1 510-799-3607 | |
| Hilltop Carrier Annex | 4180 Lakeside Dr, San Pablo, CA 94806 | Contra Costa County | +1 510-223-4654 | ||
| Knightsen | 3019 Knightsen Ave, Knightsen, CA 94548 | Contra Costa County | Mo-Fr 09:00-17:00 Sa 09:00-12:00 | +1 925-625-2724 | |
| Lafayette | 3641 Mount Diablo Blvd, Lafayette, CA 94549 | Contra Costa County | Mo-Fr 08:30-17:00 Sa 10:00-13:00 | +1 925-283-8229 | |
| Lafayette Carrier Annex | 3426 Mount Diablo Blvd, Lafayette, CA 94549 | Contra Costa County | +1 925-962-6955 | ||
| Martinez | 4100 Alhambra Ave, Martinez, CA 94553 | Contra Costa County | Mo-Fr 08:30-17:00 Sa 10:00-13:00 | +1 925-228-2722 | |
| Mc Vittie Annex | 2100 Chanslor Ave, Richmond, CA 94804 | Contra Costa County | +1 510-232-9581 | ||
| Mira Vista | 12651 San Pablo Ave, Richmond, CA 94805 | Contra Costa County | Mo-Fr 09:00-17:00 | +1 510-232-4554 | |
| Moraga | 460 Center St, Moraga, CA 94556 | Contra Costa County | Mo-Fr 08:30-17:00 Sa 09:00-15:00 | +1 925-376-9012 | |
| Oakley | 400 Del Antico Ave, Oakley, CA 94561 | Contra Costa County | Mo-Fr 09:00-17:00 Sa 09:30-12:30 | +1 925-625-5687 | |
| Orinda | 29 Orinda Way, Orinda, CA 94563 | Contra Costa County | Mo-Fr 09:00-17:00 Sa 10:00-12:30 | +1 925-254-6240 | |
| Pacheco | 4980 Pacheco Blvd, Martinez, CA 94553 | Contra Costa County | Mo-Fr 09:00-17:00 | +1 925-228-2722 | |
| Pinole | 2101 Pear St, Pinole, CA 94564 | Contra Costa County | Mo-Fr 08:30-17:00 Sa 09:00-12:00 | +1 510-741-3056 | |
| Pittsburg | 835 Railroad Ave, Pittsburg, CA 94565 | Contra Costa County | Mo-Fr 09:00-17:00 Sa 10:00-14:00 | +1 925-432-2741 | |
| Pleasant Hill | 1945 Contra Costa Blvd, Pleasant Hill, CA 94523 | Contra Costa County | Mo-Fr 09:00-17:00 Sa 10:00-14:00 | +1 925-687-0533 | |
| Point Richmond | 104 Washington Ave, Richmond, CA 94801 | Contra Costa County | Mo-Fr 09:00-13:00,14:00-17:00 | +1 510-232-4522 | |
| Port Costa | 3 Canyon Lake Dr, Port Costa, CA 94569 | Contra Costa County | Mo-Fr 10:00-14:00 Sa 08:00-12:00 | +1 510-787-2980 | |
| Richmond | 1025 Nevin Ave, Richmond, CA 94801 | Contra Costa County | Mo-Fr 08:30-17:00 Sa 09:00-13:00 | +1 510-232-4314 | |
| Rivertown | 420 W 4th St, Antioch, CA 94509 | Contra Costa County | Mo-Fr 09:30-16:30 | +1 925-778-3578 | |
| Rodeo | 499 Parker Ave, Rodeo, CA 94572 | Contra Costa County | Mo-Fr 09:00-17:00 | +1 510-799-5019 | |
| Rossmoor | 1922 Tice Valley Blvd, Walnut Creek, CA 94595 | Contra Costa County | Mo-Fr 09:00-17:00 | +1 925-947-0195 | |
| San Pablo | 2080 23rd St, San Pablo, CA 94806 | Contra Costa County | Mo-Fr 09:00-17:00 | +1 510-223-4654 | |
| San Ramon | 12935 Alcosta Blvd, San Ramon, CA 94583 | Contra Costa County | Mo-Fr 08:30-17:00 Sa 09:00-14:00 | +1 925-277-0567 | |
| Todos Santos | 2043 East St, Concord, CA 94520 | Contra Costa County | Mo-Fr 09:00-17:00 | +1 925-798-3849 | |
| Walnut Creek | 2070 N Broadway, Walnut Creek, CA 94596 | Contra Costa County | Mo-Fr 08:00-17:00 Sa 09:00-15:00 | +1 925-935-0256 | |
| Ygnacio Valley | 2244 Oak Grove Rd, Walnut Creek, CA 94598 | Contra Costa County | Mo-Fr 09:00-17:00 Sa 10:00-14:00 | +1 925-287-9267 | |