Post Offices List in Wasco County, Oregon:
| Antelope Post Office | 45404 Main St, Antelope, OR 97001 |
| Dufur Post Office | 96 N Main St, Dufur, OR 97021 |
| Maupin Post Office | 402 Deschutes Ave, Maupin, OR 97037 |
| Mosier Post Office | 1001 3rd Ave, Mosier, OR 97040 |
| Shaniko Post Office | 93482 4th St, Shaniko, OR 97057 |
| Tygh Valley Post Office | 57686 Tygh Valley Rd, Tygh Valley, OR 97063 |
| The Dalles Post Office | 101 W 2nd St, The Dalles, OR 97058 |