4 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Enterprise | 1 | 2,100 | 2,049 | 0.43% | 1,431 | 1 | City |
| Joseph | 2 | 1,184 | 1,156 | 0.42% | 1,305 | 1 | City |
| Wallowa | 3 | 821 | 802 | 0.37% | 1,344 | 1 | City |
| Lostine | 4 | 249 | 239 | 0.81% | 865 | 0 | City |
Enterprise is the largest city in Wallowa County, with a population of 2,100.
Lostine is the smallest city in Wallowa County, with a population of 249.
There are 4 cities in Wallowa County, Oregon.