| 97801 Cayuse | 541 | Umatilla County | Oregon (OR) |
| 97801 Pendleton | 541 | Umatilla County | Oregon (OR) |
| 97810 Adams | 541 | Umatilla County | Oregon (OR) |
| 97813 Athena | 541 | Umatilla County | Oregon (OR) |
| 97826 Echo | 541 | Umatilla County | Oregon (OR) |
| 97835 Helix | 541 | Umatilla County | Oregon (OR) |
| 97838 Hermiston | 541 | Umatilla County | Oregon (OR) |
| 97859 Meacham | 541 | Umatilla County | Oregon (OR) |
| 97862 Milton-Freewater | 541 | Umatilla County | Oregon (OR) |
| 97862 Milton Freewater | 541 | Umatilla County | Oregon (OR) |
| 97868 Pilot Rock | 541 | Umatilla County | Oregon (OR) |
| 97875 Stanfield | 541 | Umatilla County | Oregon (OR) |
| 97880 Dale | 541 | Umatilla County | Oregon (OR) |
| 97880 Ukiah | 541 | Umatilla County | Oregon (OR) |
| 97882 McNary | 541 | Umatilla County | Oregon (OR) |
| 97882 Umatilla | 541 | Umatilla County | Oregon (OR) |
| 97886 Weston | 541 | Umatilla County | Oregon (OR) |