state record · population
Population of Montana
Montana had an estimated population of 1,137,233 on July 1, 2024, according to the Census Bureau's Population Estimates Program.
What stands out
Montana had an estimated population of 1,137,233 on July 1, 2024, according to the Census Bureau's Population Estimates Program. Since July 2020 that is +4.6 % (50,003 people); since 2010 it is +14.8 %. Migration is the larger driver since 2020: net migration +53,299 against a natural change (births minus deaths) of -3,360. Among the 51 states in the United States, it ranks 43 by population. Values for 2010–2019 and 2020–2024 come from two estimate vintages benchmarked to different censuses; the 2019→2020 step is partly a rebasing.
Population and components of change
July 1 estimates; components per estimate year (July–June).
Largest counties in Montana
By latest estimate, with change since July 2020. Each links to the county's own population record.
| County | Population | Since 2020 |
|---|---|---|
| Yellowstone County | 171,583 | +3.9 % |
| Gallatin County | 126,984 | +6.2 % |
| Missoula County | 122,546 | +3.5 % |
| Flathead County | 114,527 | +9.2 % |
| Cascade County | 84,523 | +0.1 % |
| Lewis and Clark County | 75,129 | +5.6 % |
| Ravalli County | 48,187 | +8.5 % |
| Silver Bow County | 36,134 | +2.6 % |
| Lake County | 33,403 | +6.9 % |
| Lincoln County | 22,184 | +12.4 % |
| Park County | 18,074 | +4.9 % |
| Hill County | 16,065 | -1.2 % |
| Sanders County | 13,895 | +11.5 % |
| Glacier County | 13,503 | -1.8 % |
| Jefferson County | 13,304 | +9.6 % |
| Big Horn County | 12,796 | -2.2 % |
| Custer County | 11,964 | +0.8 % |
| Fergus County | 11,862 | +3.4 % |
| Carbon County | 11,498 | +9.4 % |
| Richland County | 11,028 | -4.4 % |
| Roosevelt County | 10,197 | -5.6 % |
| Beaverhead County | 10,006 | +6.7 % |
| Deer Lodge County | 9,811 | +4.1 % |
| Madison County | 9,753 | +12.6 % |
| Stillwater County | 9,450 | +5.0 % |
Largest cities and towns in Montana
Incorporated places, latest estimate. The Census Bureau publishes totals only for places, no components.
| Place | Population | Since 2020 |
|---|---|---|
| Billings city | 121,483 | +3.6 % |
| Missoula city | 78,204 | +5.1 % |
| Great Falls city | 60,013 | -0.7 % |
| Bozeman city | 57,894 | +7.5 % |
| Butte-Silver Bow (balance) | 35,480 | +2.6 % |
| Helena city | 34,729 | +7.7 % |
| Kalispell city | 31,296 | +23.9 % |
| Belgrade city | 12,741 | +19.2 % |
| Anaconda-Deer Lodge County | 9,811 | +4.1 % |
| Whitefish city | 9,256 | +17.5 % |
| Havre city | 9,204 | -1.3 % |
| Livingston city | 9,021 | +6.3 % |
| Miles City city | 8,407 | +0.7 % |
| Laurel city | 7,251 | +0.4 % |
| Lewistown city | 6,204 | +3.9 % |
| Sidney city | 6,031 | -5.2 % |
| Columbia Falls city | 5,713 | +5.9 % |
| Polson city | 5,631 | +9.1 % |
| Hamilton city | 5,383 | +13.9 % |
| Glendive city | 4,760 | -2.2 % |
| Dillon city | 4,242 | +9.3 % |
| Hardin city | 3,719 | -2.3 % |
| Shelby city | 3,273 | +3.5 % |
| Libby city | 3,235 | +15.7 % |
| Glasgow city | 3,169 | -0.9 % |
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