Post Offices List in Vacaville City, California:
| Cernon Post Office | 98 Cernon St, Vacaville, CA 95688 |
| Vacaville Post Office | 200 Prairie Ct, Vacaville, CA 95687 |
| Cernon Post Office | 98 Cernon St, Vacaville, CA 95688 |
| Vacaville Post Office | 200 Prairie Ct, Vacaville, CA 95687 |