| Rank | City | 2005 Population (Est.) | Growth Rate (Annual) |
|---|---|---|---|
| 1 | Billings | 96,894 | 1.3% |
| 2 | Missoula | 63,000 | 2.2% |
| 3 | Great Falls | 57,898 | 0.3% |
| 4 | Bozeman | 33,269 | 4.3% |
| 5 | Butte-Silver Bow | 32,179 | -1.2% |
| 6 | Helena | 27,528 | 1.1% |
| 7 | Kalispell | 17,416 | 3.5% |
| 8 | Havre | 9,349 | -0.6% |
| 9 | Anaconda-Deer Lodge County | 9,002 | -1.0% |
| 10 | Miles City | 8,201 | -0.8% |
| 11 | Belgrade | 7,290 | 5.3% |
| 12 | Livingston | 7,050 | -0.0% |
| 13 | Whitefish | 6,803 | 4.1% |
| 14 | Laurel | 6,361 | 0.2% |
| 15 | Lewistown | 6,033 | -1.1% |
| 16 | Polson | 4,682 | 2.8% |
| 17 | Sidney | 4,674 | -1.9% |
| 18 | Glendive | 4,611 | -1.3% |
| 19 | Hamilton | 4,443 | 3.3% |
| 20 | Columbia Falls | 4,397 | 2.9% |
| 21 | Dillon | 4,080 | -1.1% |
| 22 | Hardin | 3,465 | 0.4% |
| 23 | Shelby | 3,366 | 1.0% |
| 24 | Deer Lodge | 3,251 | -1.3% |
| 25 | Cut Bank | 3,148 | 0.4% |
| 26 | Glasgow | 3,033 | -1.6% |
| 27 | Libby | 2,839 | -0.4% |
| 28 | Wolf Point | 2,613 | -0.5% |
| 29 | Conrad | 2,576 | -1.5% |
| 30 | Colstrip | 2,323 | -0.3% |
| 31 | Red Lodge | 2,304 | 1.3% |
| 32 | Three Forks | 1,963 | 2.6% |
| 33 | Ronan | 1,926 | 1.4% |
| 34 | Townsend | 1,918 | 0.7% |
| 35 | Malta | 1,908 | -2.3% |
| 36 | Columbus | 1,900 | 1.3% |
| 37 | Roundup | 1,889 | -0.5% |
| 38 | Forsyth | 1,860 | -0.8% |
| 39 | Stevensville | 1,859 | 3.4% |
| 40 | Plentywood | 1,815 | -2.9% |
| 41 | East Helena | 1,792 | 2.0% |
| 42 | Choteau | 1,740 | -0.6% |
| 43 | Big Timber | 1,719 | 0.7% |
| 44 | Baker | 1,626 | -0.9% |
| 45 | Manhattan | 1,580 | 2.0% |
| 46 | Fort Benton | 1,458 | -2.2% |
| 47 | Thompson Falls | 1,378 | 1.0% |
| 48 | Boulder | 1,367 | 1.2% |
| 49 | Chinook | 1,298 | -1.5% |
| 50 | West Yellowstone | 1,265 | 1.7% |
| 51 | Plains | 1,205 | 1.6% |
| 52 | Whitehall | 1,104 | 1.3% |
| 53 | Browning | 1,085 | 0.6% |
| 54 | Eureka | 996 | -0.5% |
| 55 | White Sulphur Springs | 992 | 0.2% |
| 56 | Scobey | 968 | -2.7% |
| 57 | Harlowton | 964 | -2.4% |
| 58 | Troy | 947 | -0.4% |
| 59 | Philipsburg | 922 | 0.1% |
| 60 | Ennis | 917 | 1.5% |
| 61 | Poplar | 894 | -0.4% |
| 62 | Superior | 873 | -0.6% |
| 63 | Cascade | 826 | 0.4% |
| 64 | Chester | 811 | -1.7% |
| 65 | Harlem | 806 | -1.1% |
| 66 | Pinesdale | 805 | 1.9% |
| 67 | Darby | 804 | 3.0% |
| 68 | St. Ignatius | 801 | 0.3% |
| 69 | Bridger | 744 | -0.0% |
| 70 | Culbertson | 712 | -0.1% |
| 71 | Walkerville | 690 | -0.8% |
| 72 | Fairfield | 674 | -0.9% |
| 73 | Sheridan | 658 | -0.1% |
| 74 | Fairview | 652 | -1.9% |
| 75 | Belt | 638 | 0.4% |
| 76 | Big Sandy | 635 | -2.5% |
| 77 | Terry | 583 | -0.9% |
| 78 | Joliet | 578 | 0.1% |
| 79 | Circle | 570 | -2.9% |
| 80 | Hot Springs | 562 | 0.7% |
| 81 | Lodge Grass | 537 | 0.3% |
| 82 | Wibaux | 508 | -2.8% |
| 83 | Fromberg | 486 | – |
| 84 | Broadus | 478 | -1.3% |
| 85 | Valier | 467 | -1.4% |
| 86 | Stanford | 423 | -1.8% |
| 87 | Alberton | 400 | 1.5% |
| 88 | Twin Bridges | 399 | -0.1% |
| 89 | Ekalaka | 390 | -1.0% |
| 90 | Dutton | 373 | -1.0% |
| 91 | Sunburst | 349 | -4.2% |
| 92 | Jordan | 345 | -1.1% |
| 93 | Clyde Park | 332 | 1.6% |
| 94 | Drummond | 319 | – |
| 95 | Nashua | 303 | -1.7% |
| 96 | Denton | 285 | -1.4% |
| 97 | Hysham | 284 | -3.5% |
| 98 | Ryegate | 280 | 1.7% |
| 99 | Geraldine | 255 | -2.7% |
| 100 | Brockton | 246 | -0.5% |
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