City | Rank | County | 2024 Pop. |
|---|---|---|---|
| Payette | 1 | Payette County | 8,784 |
| Emmett | 2 | Gem County | 8,749 |
| Fruitland | 3 | Payette County | 7,135 |
| Weiser | 4 | Washington County | 6,188 |
| New Plymouth | 5 | Payette County | 1,583 |
| Cascade | 6 | Valley County | 1,016 |
| Council | 7 | Adams County | 983 |
| Horseshoe Bend | 8 | Boise County | 872 |
| Letha | 9 | Gem County | 667 |
| Garden Valley | 10 | Boise County | 412 |
| Cambridge | 11 | Washington County | 358 |
| Donnelly | 12 | Valley County | 257 |
| Midvale | 13 | Washington County | 222 |
| Crouch | 14 | Boise County | 183 |
| Smiths Ferry | 15 | Idaho County | 96 |
| Placerville | 16 | Boise County | 48 |
| Lowman | 17 | Boise County | 26 |
| Banks | 18 | Boise County | 6 |