Post Offices List in Fairfield City, Iowa:
| Fairfield Carrier Sta Post Office | 203 S 23rd St, Fairfield, IA 52556 |
| Fairfield Post Office | 200 W Broadway Ave, Fairfield, IA 52556 |
| Fairfield Carrier Sta Post Office | 203 S 23rd St, Fairfield, IA 52556 |
| Fairfield Post Office | 200 W Broadway Ave, Fairfield, IA 52556 |