| Locality | Post Code |
|---|---|
| Alakanuk, Kusilvak Census Area | 99554 |
| Chevak, Kusilvak Census Area | 99563 |
| Emmonak, Kusilvak Census Area | 99581 |
| Hooper Bay, Kusilvak Census Area | 99604 |
| Kotlik, Kusilvak Census Area | 99620 |
| Marshall, Kusilvak Census Area | 99585 |
| Mountain Village, Kusilvak Census Area | 99632 |
| Nunam Iqua, Kusilvak Census Area | 99666 |
| Pilot Station, Kusilvak Census Area | 99650 |
| Russian Mission, Kusilvak Census Area | 99657 |
| Saint Marys, Kusilvak Census Area | 99658 |
| Scammon Bay, Kusilvak Census Area | 99662 |