| Post Office | Hermiston |
| Division | Umatilla |
| Pincode | 97838 |
| Post Office | Pendleton |
| Division | Umatilla |
| Pincode | 97801 |
| Post Office | Milton Freewater |
| Division | Umatilla |
| Pincode | 97862 |
| Post Office | Umatilla |
| Division | Umatilla |
| Pincode | 97882 |
| Post Office | Stanfield |
| Division | Umatilla |
| Pincode | 97875 |
| Post Office | Pilot Rock |
| Division | Umatilla |
| Pincode | 97868 |
| Post Office | Athena |
| Division | Umatilla |
| Pincode | 97813 |
| Post Office | Echo |
| Division | Umatilla |
| Pincode | 97826 |
| Post Office | Adams |
| Division | Umatilla |
| Pincode | 97810 |
13 City in Umatilla | List of Zip Codes Location In Oregon and Your selected County Umatilla