| Rank | City | 2000 Population | Growth Rate (Annual) |
|---|---|---|---|
| 1 | Billings | 91,950 | 1.2% |
| 2 | Missoula | 57,725 | 1.8% |
| 3 | Great Falls | 57,095 | 0.3% |
| 4 | Butte-Silver Bow | 33,808 | 0.2% |
| 5 | Bozeman | 28,083 | 2.1% |
| 6 | Helena | 26,359 | 0.5% |
| 7 | Kalispell | 15,184 | 1.9% |
| 8 | Havre | 9,586 | -1.2% |
| 9 | Anaconda-Deer Lodge County | 9,385 | -1.0% |
| 10 | Miles City | 8,473 | -0.2% |
| 11 | Livingston | 7,062 | 0.2% |
| 12 | Lewistown | 6,299 | 0.5% |
| 13 | Laurel | 6,298 | 0.7% |
| 14 | Belgrade | 5,935 | 5.8% |
| 15 | Whitefish | 5,797 | 2.3% |
| 16 | Sidney | 5,044 | -0.3% |
| 17 | Glendive | 4,865 | 0.1% |
| 18 | Dillon | 4,261 | 0.4% |
| 19 | Polson | 4,195 | 1.6% |
| 20 | Columbia Falls | 3,918 | 3.1% |
| 21 | Hamilton | 3,904 | 3.0% |
| 22 | Deer Lodge | 3,419 | 0.2% |
| 23 | Hardin | 3,405 | 1.2% |
| 24 | Glasgow | 3,237 | -1.5% |
| 25 | Shelby | 3,229 | 1.5% |
| 26 | Cut Bank | 3,092 | -0.9% |
| 27 | Libby | 2,887 | 0.4% |
| 28 | Conrad | 2,733 | -0.6% |
| 29 | Wolf Point | 2,666 | -1.0% |
| 30 | Colstrip | 2,349 | – |
| 31 | Red Lodge | 2,184 | 1.0% |
| 32 | Malta | 2,095 | -1.2% |
| 33 | Plentywood | 2,045 | -0.5% |
| 34 | Roundup | 1,928 | 0.2% |
| 35 | Forsyth | 1,918 | -1.3% |
| 36 | Townsend | 1,864 | 1.5% |
| 37 | Ronan | 1,824 | 1.5% |
| 38 | Columbus | 1,801 | 1.2% |
| 39 | Choteau | 1,781 | -0.0% |
| 40 | Three Forks | 1,772 | 4.3% |
| 41 | Baker | 1,686 | -0.8% |
| 42 | Big Timber | 1,670 | 0.6% |
| 43 | East Helena | 1,658 | 1.0% |
| 44 | Stevensville | 1,626 | 2.4% |
| 45 | Fort Benton | 1,596 | -0.4% |
| 46 | Manhattan | 1,461 | 3.3% |
| 47 | Chinook | 1,380 | -0.9% |
| 48 | Thompson Falls | 1,323 | -0.2% |
| 49 | Boulder | 1,304 | -0.0% |
| 50 | West Yellowstone | 1,182 | 2.7% |
| 51 | Plains | 1,131 | 1.2% |
| 52 | Scobey | 1,079 | -1.5% |
| 53 | Harlowton | 1,063 | -0.1% |
| 54 | Browning | 1,061 | -0.9% |
| 55 | Whitehall | 1,048 | -0.2% |
| 56 | Eureka | 1,015 | -0.4% |
| 57 | White Sulphur Springs | 983 | 0.1% |
| 58 | Troy | 962 | -0.8% |
| 59 | Philipsburg | 917 | -0.1% |
| 60 | Poplar | 910 | 0.4% |
| 61 | Superior | 893 | -0.1% |
| 62 | Chester | 869 | -0.8% |
| 63 | Ennis | 863 | 1.0% |
| 64 | Harlem | 844 | -0.4% |
| 65 | Cascade | 812 | 2.9% |
| 66 | St. Ignatius | 790 | 0.4% |
| 67 | Pinesdale | 746 | 1.1% |
| 68 | Bridger | 745 | 0.7% |
| 69 | Culbertson | 716 | -1.1% |
| 70 | Darby | 715 | 0.1% |
| 71 | Walkerville | 712 | 0.3% |
| 72 | Fairview | 705 | -2.0% |
| 73 | Big Sandy | 703 | -0.6% |
| 74 | Fairfield | 698 | 0.6% |
| 75 | Sheridan | 661 | -0.0% |
| 76 | Circle | 640 | -1.9% |
| 77 | Belt | 628 | 1.4% |
| 78 | Terry | 604 | -0.9% |
| 79 | Joliet | 575 | 0.4% |
| 80 | Wibaux | 569 | -1.0% |
| 81 | Hot Springs | 547 | 2.3% |
| 82 | Lodge Grass | 531 | 0.3% |
| 83 | Broadus | 504 | -1.4% |
| 84 | Valier | 494 | -0.6% |
| 85 | Fromberg | 486 | 2.7% |
| 86 | Stanford | 454 | -1.5% |
| 87 | Sunburst | 414 | -0.5% |
| 88 | Ekalaka | 406 | -0.8% |
| 89 | Twin Bridges | 401 | 0.7% |
| 90 | Dutton | 388 | -0.1% |
| 91 | Alberton | 377 | 0.6% |
| 92 | Jordan | 361 | -3.1% |
| 93 | Hysham | 327 | -1.3% |
| 94 | Nashua | 324 | -1.6% |
| 95 | Drummond | 319 | 2.0% |
| 96 | Clyde Park | 311 | 1.0% |
| 97 | Denton | 301 | -1.5% |
| 98 | Geraldine | 284 | -0.5% |
| 99 | Medicine Lake | 267 | -3.0% |
| 100 | Ryegate | 262 | 0.1% |
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