| Rank | City | 2009 Population (Est.) | Growth Rate (Annual) |
|---|---|---|---|
| 1 | Billings | 103,959 | 1.5% |
| 2 | Missoula | 68,169 | 2.1% |
| 3 | Great Falls | 59,258 | 0.5% |
| 4 | Bozeman | 39,004 | 4.2% |
| 5 | Butte-Silver Bow | 32,095 | -0.6% |
| 6 | Helena | 29,481 | 1.4% |
| 7 | Kalispell | 21,221 | 4.3% |
| 8 | Havre | 9,543 | -0.1% |
| 9 | Anaconda-Deer Lodge County | 8,904 | -0.7% |
| 10 | Whitefish | 8,332 | 4.6% |
| 11 | Belgrade | 8,169 | 4.1% |
| 12 | Miles City | 8,059 | -0.6% |
| 13 | Livingston | 7,438 | 0.7% |
| 14 | Laurel | 6,654 | 0.7% |
| 15 | Lewistown | 5,909 | -0.8% |
| 16 | Columbia Falls | 5,301 | 3.9% |
| 17 | Polson | 5,135 | 2.6% |
| 18 | Hamilton | 4,940 | 3.0% |
| 19 | Sidney | 4,766 | -0.7% |
| 20 | Glendive | 4,591 | -0.7% |
| 21 | Dillon | 4,222 | -0.1% |
| 22 | Shelby | 3,512 | 1.1% |
| 23 | Hardin | 3,477 | 0.3% |
| 24 | Deer Lodge | 3,467 | 0.2% |
| 25 | Cut Bank | 3,110 | 0.1% |
| 26 | Glasgow | 2,919 | -1.3% |
| 27 | Libby | 2,873 | -0.1% |
| 28 | Wolf Point | 2,512 | -0.7% |
| 29 | Conrad | 2,503 | -1.1% |
| 30 | Red Lodge | 2,456 | 1.5% |
| 31 | Colstrip | 2,341 | -0.0% |
| 32 | East Helena | 2,109 | 3.1% |
| 33 | Stevensville | 2,027 | 2.8% |
| 34 | Townsend | 2,021 | 1.0% |
| 35 | Columbus | 2,000 | 1.3% |
| 36 | Ronan | 1,986 | 1.1% |
| 37 | Three Forks | 1,980 | 1.4% |
| 38 | Roundup | 1,921 | -0.0% |
| 39 | Forsyth | 1,847 | -0.5% |
| 40 | Malta | 1,799 | -1.9% |
| 41 | Big Timber | 1,749 | 0.6% |
| 42 | Choteau | 1,738 | -0.3% |
| 43 | Manhattan | 1,684 | 1.8% |
| 44 | Plentywood | 1,639 | -2.7% |
| 45 | Baker | 1,604 | -0.6% |
| 46 | West Yellowstone | 1,510 | 3.1% |
| 47 | Boulder | 1,454 | 1.4% |
| 48 | Fort Benton | 1,448 | -1.2% |
| 49 | Thompson Falls | 1,424 | 0.9% |
| 50 | Chinook | 1,262 | -1.1% |
| 51 | Plains | 1,245 | 1.2% |
| 52 | Whitehall | 1,173 | 1.4% |
| 53 | Browning | 1,065 | 0.0% |
| 54 | Ennis | 1,050 | 2.5% |
| 55 | Eureka | 1,001 | -0.2% |
| 56 | White Sulphur Springs | 968 | -0.2% |
| 57 | Troy | 967 | 0.1% |
| 58 | Harlowton | 946 | -1.4% |
| 59 | Philipsburg | 924 | 0.1% |
| 60 | Scobey | 914 | -2.1% |
| 61 | Superior | 871 | -0.3% |
| 62 | Poplar | 868 | -0.6% |
| 63 | Darby | 862 | 2.4% |
| 64 | Pinesdale | 823 | 1.2% |
| 65 | St. Ignatius | 804 | 0.2% |
| 66 | Harlem | 783 | -0.9% |
| 67 | Cascade | 775 | -0.6% |
| 68 | Bridger | 731 | -0.2% |
| 69 | Chester | 710 | -2.5% |
| 70 | Sheridan | 702 | 0.8% |
| 71 | Culbertson | 692 | -0.4% |
| 72 | Walkerville | 681 | -0.6% |
| 73 | Fairfield | 664 | -0.6% |
| 74 | Fairview | 660 | -0.8% |
| 75 | Joliet | 628 | 1.1% |
| 76 | Big Sandy | 605 | -1.9% |
| 77 | Belt | 593 | -0.7% |
| 78 | Hot Springs | 579 | 0.7% |
| 79 | Terry | 559 | -1.0% |
| 80 | Circle | 539 | -2.1% |
| 81 | Lodge Grass | 529 | -0.0% |
| 82 | Fromberg | 474 | -0.3% |
| 83 | Wibaux | 467 | -2.4% |
| 84 | Broadus | 461 | -1.1% |
| 85 | Valier | 455 | -1.0% |
| 86 | Twin Bridges | 427 | 0.8% |
| 87 | Alberton | 419 | 1.3% |
| 88 | Stanford | 396 | -1.7% |
| 89 | Dutton | 366 | -0.7% |
| 90 | Ekalaka | 358 | -1.6% |
| 91 | Clyde Park | 347 | 1.4% |
| 92 | Jordan | 330 | -1.1% |
| 93 | Drummond | 320 | 0.0% |
| 94 | Sunburst | 314 | -3.4% |
| 95 | Nashua | 292 | -1.3% |
| 96 | Denton | 277 | -1.0% |
| 97 | Ryegate | 268 | 0.3% |
| 98 | Hysham | 247 | -3.4% |
| 99 | Geraldine | 242 | -2.0% |
| 100 | Brockton | 239 | -0.6% |
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