| ZIP Code | ZIP Code Place Name | County | ZIP Code Type |
|---|---|---|---|
| 97801 | Pendleton | Umatilla County | Standard |
| 97810 | Adams | Umatilla County | Standard |
| 97813 | Athena | Umatilla County | Standard |
| 97818 | Boardman | Morrow County | Standard |
| 97826 | Echo | Umatilla County | Standard |
| 97835 | Helix | Umatilla County | Standard |
| 97836 | Heppner | Morrow County | Standard |
| 97838 | Hermiston | Umatilla County | Standard |
| 97839 | Lexington | Morrow County | Standard |
| 97843 | Ione | Morrow County | Standard |
| 97844 | Irrigon | Morrow County | Standard |
| 97850 | La Grande | Union County | Standard |
| 97859 | Meacham | Umatilla County | PO Box |
| 97862 | Milton Freewater | Umatilla County | Standard |
| 97868 | Pilot Rock | Umatilla County | Standard |
| 97875 | Stanfield | Umatilla County | Standard |
| 97880 | Ukiah | Umatilla County | PO Box |
| 97882 | Umatilla | Umatilla County | Standard |
| 97886 | Weston | Umatilla County | Standard |