Post Offices List in Baker County, Oregon:
| Baker City Post Office | 1550 Dewey Ave, Baker City, OR 97814 |
| Durkee Post Office | 28677 Old Hwy 30, Durkee, OR 97905 |
| Haines Post Office | 918 Front St, Haines, OR 97833 |
| Halfway Post Office | 107 S Main St, Halfway, OR 97834 |
| Huntington Post Office | 10 E Washington St, Huntington, OR 97907 |
| Oxbow Post Office | 49516 Homestead Rd, Oxbow, OR 97840 |
| Sumpter Post Office | 321 Se Austin St, Sumpter, OR 97877 |
| Unity Post Office | 105 Main St, Unity, OR 97884 |
| Richland Post Office | 203 Main St, Richland, OR 97870 |