Identifiers: city · town · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Hamilton (city), MT | 4,659 |
| 2 | Stevensville (town), MT | 2,002 |
| 3 | Corvallis (CDP), MT | 1,125 |
| 4 | Pinesdale (town), MT | 805 |
| 5 | Victor (CDP), MT | 789 |
| 6 | Darby (town), MT | 783 |
| 7 | Conner (CDP), MT | 182 |
| 8 | Charlos Heights (CDP), MT | 135 |