City
- Adrian
- Baker City
- Brogan
- Cove
- Durkee
- Halfway
- Harper
- Huntington
- Jordan Valley
- Klamath Falls
- North Powder
- Nyssa
- Ontario
- Outside City Limits
- Sumpter
- Unity
- Vale
- Warren
County
Zip Code
- 97053
- 97394-0000
- 97603
- 97814
- 97824
- 97834
- 97867
- 97877
- 97884
- 97901
- 97903
- 97903-0000
- 97905
- 97906
- 97907
- 97910
- 97913
- 97913-3613
- 97913-3936
- 97914
- 97914-000
- 97914-0000
- 97918
School District
- Adrian School District #61
- Annex School District #29
- Baker School District 5J
- Cove #15
- Harper School District #66
- Huntington School District 16J
- Jordan Valley School District #3
- Nyssa School District 26
- Ontario School District 8C
- Out of Area
- Vale School District 84