Post Offices List in Wapello County, Iowa:
| Agency Post Office | 102 E Main St, Agency, IA 52530 |
| Blakesburg Post Office | 104 W State St, Blakesburg, IA 52536 |
| Chillicothe Post Office | 318 Market St, Chillicothe, IA 52548 |
| Eddyville Post Office | 102 Walnut St, Eddyville, IA 52553 |
| Eldon Post Office | 402 Elm St, Eldon, IA 52554 |
| Kirkville Post Office | 100 S Cedar St, Kirkville, IA 52566 |
| Ottumwa Post Office | 616 W 2nd St, Ottumwa, IA 52501 |