| Locality | Post Code |
|---|---|
| Aberdeen, Grays Harbor | 98520 |
| Aberdeen Gardens, Grays Harbor | 98520 |
| Alder Grove, Grays Harbor | 98563 |
| Aloha, Grays Harbor | 98571 |
| Amanda Park, Grays Harbor | 98526 |
| Bay City, Grays Harbor | 98520 |
| Bench Drive, Grays Harbor | 98520 |
| Brady, Grays Harbor | 98563 |
| Carlisle, Grays Harbor | 98536 |
| Cedarville, Grays Harbor | 98568 |
| Central Park, Grays Harbor | 98520 |
| Chenois Creek, Grays Harbor | 98550 |
| Cohasset Beach, Grays Harbor | 98595 |
| Copalis Beach, Grays Harbor | 98535 |
| Copalis Crossing, Grays Harbor | 98536 |
| Cosmopolis, Grays Harbor | 98537 |
| Deckerville, Grays Harbor | 98541 |
| Elma, Grays Harbor | 98541 |
| Garden City, Grays Harbor | 98557 |
| Gibson Creek, Grays Harbor | 98568 |
| Gray Gables, Grays Harbor | 98550 |
| Grayland, Grays Harbor | 98547 |
| Grays Harbor City, Grays Harbor | 98550 |
| Grisdale, Grays Harbor | 98563 |
| Heather, Grays Harbor | 98547 |
| Hillgrove, Grays Harbor | 98557 |