| City/Town | Postal Code | Area Code |
| Boyds, WA | 99107 | 509 |
| Curlew, WA | 99118 | 509 |
| Danville, WA | 99121 | 509 |
| Inchelium, WA | 99138 | 509 |
| Keller, WA | 99140 | 509 |
| Kettle Falls, WA | 99107 | 509 |
| 99160 | 509 | |
| Kewa, WA | 99138 | 509 |
| Laurier, WA | 99146 | 509 |
| Malo, WA | 99150 | 509 |
| Orient, WA | 99160 | 509 |
| Republic, WA | 99166 | 509 |