| Locality | Post Code |
|---|---|
| Ambler, Northwest Arctic | 99786 |
| Buckland, Northwest Arctic | 99727 |
| Deering, Northwest Arctic | 99736 |
| Kiana, Northwest Arctic | 99749 |
| Kivalina, Northwest Arctic | 99750 |
| Kobuk, Northwest Arctic | 99751 |
| Kotzebue, Northwest Arctic | 99752 |
| Noatak, Northwest Arctic | 99761 |
| Noorvik, Northwest Arctic | 99763 |
| Selawik, Northwest Arctic | 99770 |
| Shungnak, Northwest Arctic | 99773 |