| Locality | Post Code |
|---|---|
| Aeneas, Okanogan | 98855 |
| Azwell, Okanogan | 98846 |
| Bodie, Okanogan | 98859 |
| Brewster, Okanogan | 98812 |
| Carlton, Okanogan | 98814 |
| Chesaw, Okanogan | 98844 |
| Conconully, Okanogan | 98819 |
| Coulee Dam, Okanogan | 99116 |
| Disautel, Okanogan | 98841 |
| Ellisford, Okanogan | 98855 |
| Elmer City, Okanogan | 99124 |
| Havillah, Okanogan | 98855 |
| Loomis, Okanogan | 98827 |
| Malott, Okanogan | 98829 |
| Mason, Okanogan | 99116 |
| Mazama, Okanogan | 98833 |
| Methow, Okanogan | 98834 |
| Molson, Okanogan | 98844 |
| Monse, Okanogan | 98812 |
| Nespelem, Okanogan | 99155 |
| Nighthawk, Okanogan | 98855 |
| Okanogan, Okanogan | 98840 |
| Omak, Okanogan | 98841 |
| Oroville, Okanogan | 98844 |
| Pateros, Okanogan | 98846 |
| Riverside, Okanogan | 98849 |