Post Offices List in Fairfield City, Connecticut:
| Fairfield Post Office | 1300 Post Rd Ste 5, Fairfield, CT 06824 |
| Commerce Post Office | 357 Commerce Dr, Fairfield, CT 06825 |
| Fairfield Post Office | 1300 Post Rd Ste 5, Fairfield, CT 06824 |
| Commerce Post Office | 357 Commerce Dr, Fairfield, CT 06825 |