| City/Town | Postal Code | Area Code |
| Bay Center, WA | 98527 | 360/564 |
| Chinook, WA | 98614 | 360/564 |
| Firdale, WA | 98577 | 360/564 |
| Frances, WA | 98577 | 360/564 |
| Holcomb, WA | 98577 | 360/564 |
| Ilwaco, WA | 98624 | 360/564 |
| Lebam, WA | 98554 | 360/564 |
| Long Beach, WA | 98631 | 360/564 |
| Menlo, WA | 98561 | 360/564 |
| Nahcotta, WA | 98637 | 360/564 |
| Naselle, WA | 98638 | 360/564 |
| Nemah, WA | 98586 | 360/564 |
| North Cove, WA | 98590 | 360/564 |
| Ocean Park, WA | 98640 | 360/564 |
| Oceanside, WA | 98631 | 360/564 |
| Old Willapa, WA | 98577 | 360/564 |
| Oysterville, WA | 98641 | 360/564 |
| Raymond, WA | 98577 | 360/564 |
| Seaview, WA | 98644 | 360/564 |
| South Bend, WA | 98586 | 360/564 |
| Tokeland, WA | 98590 | 360/564 |
| Willapa, WA | 98577 | 360/564 |