| City/Town | Postal Code | Area Code |
| Appleton, WA | 98602 | 509 |
| Bickleton, WA | 99322 | 509 |
| Bingen, WA | 98605 | 509 |
| Centerville, WA | 98613 | 509 |
| Cook, WA | 98605 | 509 |
| Dallesport, WA | 98617 | 509 |
| Glenwood, WA | 98619 | 509 |
| Goldendale, WA | 98620 | 509 |
| Husum, WA | 98623 | 509 |
| Klickitat, WA | 98628 | 509 |
| Klickitat, WA | 98670 | 509 |
| Lyle, WA | 98635 | 509 |
| Maryhill, WA | 98620 | 509 |
| Roosevelt, WA | 99356 | 509 |
| Trout Lake, WA | 98650 | 509 |
| Troutlake, WA | 98650 | 509 |
| Wahkiacus, WA | 98670 | 509 |
| White Salmon, WA | 98672 | 509 |
| Wishram, WA | 98673 | 509 |