12 cities
| City | County | 2026 Pop. ↓ |
|---|---|---|
| Garden City | Ada County | 13,255 |
| Gooding | Gooding County | 3,877 |
| Grangeville | Idaho County | 3,776 |
| Glenns Ferry | Elmore County | 1,290 |
| Groveland | Bingham County | 1,279 |
| Genesee | Latah County | 1,139 |
| Grace | Caribou County | 955 |
| Greenleaf | Canyon County | 782 |
| Georgetown | Bear Lake County | 512 |
| Grand View | Owyhee County | 474 |
| Gannett | Blaine County | 428 |
| Garden Valley | Boise County | 357 |