| Localité | Code postal |
|---|---|
| Andover, Clinton | 52701 |
| Baldwin, Clinton | 52207 |
| Bryant, Clinton | 52727 |
| Calamus, Clinton | 52729 |
| Camanche, Clinton | 52730 |
| Charlotte, Clinton | 52731 |
| Clinton, Clinton | 52732 |
| De Witt, Clinton | 52742 |
| Delmar, Clinton | 52037 |
| Elvira, Clinton | 52732 |
| Elwood, Clinton | 52254 |
| Folletts, Clinton | 52730 |
| Goose Lake, Clinton | 52750 |
| Grand Mound, Clinton | 52751 |
| Hauntown, Clinton | 52732 |
| Lost Nation, Clinton | 52254 |
| Low Moor, Clinton | 52757 |
| Miles, Clinton | 52064 |
| North Welton, Clinton | 52037 |
| Oxford Junction, Clinton | 52323 |
| Petersville, Clinton | 52731 |
| Preston, Clinton | 52069 |
| Sabula, Clinton | 52070 |
| Shaffton, Clinton | 52730 |
| Six Mile, Clinton | 52732 |
| Sugar Creek, Clinton | 52731 |