| Locality | Post Code |
|---|---|
| Boyds, Ferry | 99107 |
| Curlew, Ferry | 99118 |
| Danville, Ferry | 99121 |
| Inchelium, Ferry | 99138 |
| Keller, Ferry | 99140 |
| Kettle Falls, Ferry | 99107, 99160 |
| Kewa, Ferry | 99138 |
| Laurier, Ferry | 99146 |
| Malo, Ferry | 99150 |
| Orient, Ferry | 99160 |
| Republic, Ferry | 99166 |