| Localité | Code postal |
|---|---|
| Blairsville, Posey | 47638 |
| Bugtown, Posey | 47633 |
| Cynthiana, Posey | 47612 |
| Griffin, Posey | 47616 |
| Mount Vernon, Posey | 47620 |
| New Harmony, Posey | 47631 |
| Parkers Settlement, Posey | 47638 |
| Poseyville, Posey | 47633 |
| Solitude, Posey | 47620 |
| Stewartsville, Posey | 47633 |
| Wadesville, Posey | 47638 |