978
- 97801 Pendleton
- 97810 Adams
- 97812 Arlington
- 97813 Athena
- 97814 Baker City
- 97817 Bates
- 97818 Boardman
- 97819 Bridgeport
- 97820 Canyon City
- 97823 Condon
- 97824 Cove
- 97825 Dayville
- 97826 Echo
- 97827 Elgin
- 97828 Enterprise
- 97830 Fossil
- 97833 Haines
- 97834 Halfway
- 97835 Helix
- 97836 Heppner
- 97837 Hereford
- 97838 Hermiston
- 97839 Lexington
- 97840 Oxbow
- 97841 Imbler
- 97842 Imnaha
- 97843 Ione
- 97844 Irrigon
- 97845 John Day
- 97846 Joseph
- 97848 Kimberly
- 97850 La Grande
- 97856 Long Creek
- 97857 Lostine
- 97859 Meacham
- 97862 Milton Freewater
- 97864 Monument
- 97865 Mount Vernon
- 97867 North Powder
- 97868 Pilot Rock
- 97869 Prairie City
- 97870 Richland
- 97873 Seneca
- 97874 Spray
- 97875 Stanfield
- 97876 Summerville
- 97877 Sumpter
- 97880 Ukiah
- 97882 Umatilla
- 97883 Union
- 97884 Unity
- 97885 Wallowa
- 97886 Weston