| City/Town | Postal Code | Area Code |
| Cathlamet, WA | 98612 | 360/564 |
| Grays River, WA | 98621 | 360/564 |
| Puget Island, WA | 98612 | 360/564 |
| Rosburg, WA | 98643 | 360/564 |
| Skamokawa, WA | 98647 | 360/564 |
List of all Cities and Towns in Wahkiakum County, WA alphabetically
| City/Town | Postal Code | Area Code |
| Cathlamet, WA | 98612 | 360/564 |
| Grays River, WA | 98621 | 360/564 |
| Puget Island, WA | 98612 | 360/564 |
| Rosburg, WA | 98643 | 360/564 |
| Skamokawa, WA | 98647 | 360/564 |