| Locality | Post Code |
|---|---|
| Adair, Adair | 50002 |
| Anita, Adair | 50020 |
| Bridgewater, Adair | 50837 |
| Casey, Adair | 50048 |
| Dexter, Adair | 50070 |
| Fontanelle, Adair | 50846 |
| Greenfield, Adair | 50849 |
| Hebron, Adair | 50858 |
| Menlo, Adair | 50164 |
| North Branch, Adair | 50002 |
| Orient, Adair | 50858 |
| Stanzel, Adair | 50849 |
| Stuart, Adair | 50250 |
| Zion, Adair | 50858 |