8 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Baker City | 1 | 10,134 | 10,136 | 0% | 1,415 | 7 | City |
| Huntington | 2 | 507 | 501 | 0.2% | 685 | 1 | City |
| Haines | 3 | 375 | 374 | 0% | 496 | 1 | City |
| Halfway | 4 | 358 | 358 | 0% | 962 | 0 | City |
| Sumpter | 5 | 207 | 207 | 0% | 95 | 2 | City |
| Richland | 6 | 169 | 168 | 0% | 1,610 | 0 | City |
| Unity | 7 | 42 | 41 | 0% | 66 | 1 | City |
| Granite | 8 | 29 | 29 | 0% | 78 | 0 | City |
Baker City is the largest city in Baker County, with a population of 10,134.
Granite is the smallest city in Baker County, with a population of 29.
There are 8 cities in Baker County, Oregon.