Post Offices List in Martinez City, California:
| Court Post Office | 815 Court St, Martinez, CA 94553 |
| Martinez Post Office | 4100 Alhambra Ave, Martinez, CA 94553 |
| Pacheco Post Office | 4980 Pacheco Blvd, Martinez, CA 94553 |
| Court Post Office | 815 Court St, Martinez, CA 94553 |
| Martinez Post Office | 4100 Alhambra Ave, Martinez, CA 94553 |
| Pacheco Post Office | 4980 Pacheco Blvd, Martinez, CA 94553 |