| City/Town | Postal Code | Area Code |
| Addy, WA | 99101 | 509 |
| Cedonia, WA | 99137 | 509 |
| Chewelah, WA | 99109 | 509 |
| Clayton, WA | 99110 | 509 |
| Colville, WA | 99114 | 509 |
| Deer Lake, WA | 99148 | 509 |
| Evans, WA | 99126 | 509 |
| Ford, WA | 99013 | 509 |
| Fruitland, WA | 99129 | 509 |
| Gifford, WA | 99131 | 509 |
| Hunters, WA | 99129 | 509 |
| 99137 | 509 | |
| Kettle Falls, WA | 99126 | 509 |
| 99141 | 509 | |
| Loon Lake, WA | 99148 | 509 |
| Marcus, WA | 99151 | 509 |
| Northport, WA | 99157 | 509 |
| Rice, WA | 99167 | 509 |
| Springdale, WA | 99173 | 509 |
| Tum Tum, WA | 99034 | 509 |
| Valley, WA | 99181 | 509 |
| Wellpinit, WA | 99040 | 509 |