| Locality | Post Code |
|---|---|
| Antelope, Wasco | 97001 |
| Celilo, Wasco | 97058 |
| Clarno, Wasco | 97001 |
| Dufur, Wasco | 97021 |
| Friend, Wasco | 97021 |
| Maupin, Wasco | 97037 |
| Mosier, Wasco | 97040 |
| Pine Grove, Wasco | 97037 |
| Rowena, Wasco | 97058 |
| Shaniko, Wasco | 97057 |
| The Dalles, Wasco | 97058 |
| Tygh Valley, Wasco | 97063 |
| Wamic, Wasco | 97063 |