| City | Rank | County | 2026 Pop. ↓ |
|---|---|---|---|
| Salmon | 1 | Lemhi County | 3,327 |
| Challis | 2 | Custer County | 969 |
| Arco | 3 | Butte County | 925 |
| Fairfield | 4 | Camas County | 514 |
| Mackay | 5 | Custer County | 489 |
| Moore | 6 | Butte County | 179 |
| Stanley | 7 | Custer County | 125 |
| Leadore | 8 | Lemhi County | 100 |
| Butte City | 9 | Butte County | 88 |
| Clayton | 10 | Custer County | 11 |
Lemhi County, Custer County, Butte County, and Camas County are the counties generally considered part of Central Idaho.