| Barnes City Post Office |
610 Spruce St, Barnes City, IA 50027 |
| Beacon Post Office |
320 Kilbourn St, Beacon, IA 52534 |
| Cedar Post Office |
2804 Highway 23, Cedar, IA 52543 |
| Fremont Post Office |
106 N Walnut St, Fremont, IA 52561 |
| Leighton Post Office |
219 Otley St, Leighton, IA 50143 |
| New Sharon Post Office |
106 S Pearl St, New Sharon, IA 50207 |
| Oskaloosa Post Office |
113 6th Ave E, Oskaloosa, IA 52577 |
| Rose Hill Post Office |
339 Main St, Rose Hill, IA 52586 |
| University Park Post Office |
2204 9th Ave E, University Park, IA 52595 |
