| Zip Code | City | Population ↓ |
|---|---|---|
| 97814 | Baker City | 12,636 |
| 97834 | Halfway | 1,431 |
| 97907 | Huntington | 761 |
| 97833 | Haines | 644 |
| 97870 | Richland | 580 |
| 97884 | Unity | 122 |
| 97905 | Durkee | 104 |
| 97840 | Oxbow | 82 |
| 97837 | Hereford | 50 |
| 97819 | Bridgeport | 18 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 10 ZCTAs in Baker County, Oregon (US Census).