Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Helena (city), MT | 32,091 |
| 2 | Helena Valley Southeast (CDP), MT | 9,168 |
| 3 | Helena Valley West Central (CDP), MT | 8,670 |
| 4 | Helena Valley Northwest (CDP), MT | 4,705 |
| 5 | Helena Valley Northeast (CDP), MT | 3,813 |
| 6 | East Helena (city), MT | 1,944 |
| 7 | Helena West Side (CDP), MT | 1,331 |
| 8 | Boulder (city), MT | 1,201 |
| 9 | The Silos (CDP), MT | 691 |
| 10 | South Hills (CDP), MT | 644 |
| 11 | Jefferson City (CDP), MT | 597 |
| 12 | Spokane Creek (CDP), MT | 430 |
| 13 | Unionville (CDP), MT | 206 |
| 14 | Winston (CDP), MT | 169 |
| 15 | York (CDP), MT | 94 |
| 16 | Canyon Creek (CDP), MT | 47 |
Identifiers: city · CDP
| Rank | Community | Population |
|---|---|---|
| 1 | Helena (city), MT | 32,091 |
| 2 | Helena Valley Southeast (CDP), MT | 9,168 |
| 3 | Helena Valley West Central (CDP), MT | 8,670 |
| 4 | Helena Valley Northwest (CDP), MT | 4,705 |
| 5 | Helena Valley Northeast (CDP), MT | 3,813 |
| 6 | East Helena (city), MT | 1,944 |
| 7 | Helena West Side (CDP), MT | 1,331 |
| 8 | Boulder (city), MT | 1,201 |
| 9 | The Silos (CDP), MT | 691 |
| 10 | South Hills (CDP), MT | 644 |
| 11 | Jefferson City (CDP), MT | 597 |
| 12 | Spokane Creek (CDP), MT | 430 |
| 13 | Unionville (CDP), MT | 206 |
| 14 | Winston (CDP), MT | 169 |
| 15 | York (CDP), MT | 94 |
| 16 | Canyon Creek (CDP), MT | 47 |