| Post Office Name | City/State | Address | Phone Number | Action |
|---|---|---|---|---|
| Blencoe Post Office | Blencoe, IA 51523 | 412 Main St | 7124522797 | View Details Get Directions |
| Castana Post Office | Castana, IA 51010 | 100 N 3rd St | 7123536306 | View Details Get Directions |
| Dunlap Post Office | Dunlap, IA 51529 | 719 Iowa Ave | 7126435863 | View Details Get Directions |
| Hornick Post Office | Hornick, IA 51026 | 315 Main St | 7128743799 | View Details Get Directions |
| Mapleton Post Office | Mapleton, IA 51034 | 106 S 5th St | 7128822545 | View Details Get Directions |
| Onawa Post Office | Onawa, IA 51040 | 1017 Iowa Ave | 7124232811 | View Details Get Directions |
| Rodney Post Office | Rodney, IA 51051 | 120 Main St | 7128892225 | View Details Get Directions |
| Sloan Post Office | Sloan, IA 51055 | 309 4th St | 7124286225 | View Details Get Directions |
| Smithland Post Office | Smithland, IA 51056 | 207 S Hickory St | 7128892145 | View Details Get Directions |
| Soldier Post Office | Soldier, IA 51572 | 200 Elm St | 7128842285 | View Details Get Directions |
| Ute Post Office | Ute, IA 51060 | 100 E Main St | 7128852287 | View Details Get Directions |
| Whiting Post Office | Whiting, IA 51063 | 609 Whittier St | 7124582509 | View Details Get Directions |
| Mailbox in Post Office Lobby | Castana, IA 51010 | 301 E Pine St | -- | Get Directions |
| Public Collection Box | Moorhead, IA 51558 | 116 Oak St | -- | Get Directions |
| Public Collection Box | Onawa, IA 51040 | 2650 Iowa Ave | -- | Get Directions |
| Public Collection Box | Onawa, IA 51040 | 900 Iowa Ave | -- | Get Directions |
