| | Boardman city | 4107200 | Morrow County 41049 | OR | Hermiston-Pendleton, OR 25840 | | | https://maps.google.com/?q=Boardmancity+OR |
| | Heppner city | 4133550 | Morrow County 41049 | OR | Hermiston-Pendleton, OR 25840 | | | https://maps.google.com/?q=Heppnercity+OR |
| | Ione city | 4136400 | Morrow County 41049 | OR | Hermiston-Pendleton, OR 25840 | | | https://maps.google.com/?q=Ionecity+OR |
| | Irrigon city | 4136500 | Morrow County 41049 | OR | Hermiston-Pendleton, OR 25840 | | | https://maps.google.com/?q=Irrigoncity+OR |
| | Lexington town | 4142200 | Morrow County 41049 | OR | Hermiston-Pendleton, OR 25840 | | | https://maps.google.com/?q=Lexingtontown+OR |