| Locality | Post Code |
|---|---|
| Agency, Wapello | 52530 |
| Batavia, Wapello | 52533 |
| Bladensburg, Wapello | 52501 |
| Blakesburg, Wapello | 52536 |
| Chillicothe, Wapello | 52548 |
| Cliffland, Wapello | 52501 |
| Dahlonega, Wapello | 52501 |
| Dudley, Wapello | 52501 |
| Eddyville, Wapello | 52553 |
| Eldon, Wapello | 52554 |
| Hedrick, Wapello | 52563 |
| Kirkville, Wapello | 52566 |
| Munterville, Wapello | 52536 |
| Ottumwa, Wapello | 52501 |
| Ottumwa Junction, Wapello | 52501 |
| Rutledge, Wapello | 52501 |
| South Ottumwa, Wapello | 52501 |