# Cities in Montana by population, 2025

All 8 values come from U.S. Census Bureau for 2025, so the places are comparable.

- Indicator id: `population`
- Unit: persons
- Definition: Resident population. Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón). Norway: Statistics Norway, 1 January. Iceland and its municipalities: Statistics Iceland, 1 January. United States: Census Bureau population estimates for 1 July. United Kingdom regions and local authorities: Office for National Statistics estimates for 30 June. Other countries and the World: World Bank mid-year estimates, which count all residents regardless of legal status or citizenship. UN World Population Prospects estimates for 1 July cover the years before 1960 and the areas the World Bank does not publish, such as Taiwan.
- Source: U.S. Census Bureau, Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals) (https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/)
- Publisher page: https://invokely.ai/en/publishers/us-census-bureau
- Retrieved: 2026-10-12
- Citation: U.S. Census Bureau. Annual estimates of the resident population for incorporated places, 1 July (Population Estimates Program, subcounty totals). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-12.
- Web page: https://invokely.ai/rankings/population/montana-cities

| Rank | Place | persons |
|---:|---|---:|
| 1 | Billings, MT | 121,239 |
| 2 | Missoula, MT | 78,903 |
| 3 | Great Falls, MT | 60,208 |
| 4 | Bozeman, MT | 58,814 |
| 5 | Butte, MT | 35,469 |
| 6 | Helena, MT | 35,138 |
| 7 | Kalispell, MT | 31,851 |
| 8 | Belgrade, MT | 13,107 |