Fort Belknap Agency is the #1 ranked city in Montana with 47.1 (col index). This ranking includes 95 Montana cities with available data.
| # | City | Population | COL Index |
|---|---|---|---|
| 1 | Fort Belknap Agency | 1,434 | 47.1 |
| 2 | South Browning | 1,852 | 50.0 |
| 3 | Lame Deer | 1,939 | 58.7 |
| 4 | North Browning | 2,894 | 66.4 |
| 5 | Crow Agency | 2,110 | 69.8 |
| 6 | Plains | 1,077 | 71.7 |
| 7 | Whitehall | 1,151 | 74.7 |
| 8 | Libby | 2,948 | 76.9 |
| 9 | Wolf Point | 2,604 | 79.7 |
| 10 | Thompson Falls | 1,568 | 79.7 |
| 11 | Pablo | 1,808 | 80.5 |
| 12 | Ronan | 1,962 | 80.6 |
| 13 | Lewistown | 6,028 | 82.7 |
| 14 | Eureka | 2,009 | 83.8 |
| 15 | Conrad | 2,553 | 84.3 |
| 16 | Anaconda-Deer Lodge County | 9,512 | 84.9 |
| 17 | Plentywood | 1,677 | 85.8 |
| 18 | Malta | 1,902 | 86.1 |
| 19 | Harlowton | 1,054 | 86.2 |
| 20 | St. Ignatius | 1,053 | 86.5 |
| 21 | Cut Bank | 3,040 | 87.5 |
| 22 | Choteau | 1,719 | 87.6 |
| 23 | Roundup | 1,964 | 88.4 |
| 24 | Hardin | 3,766 | 88.4 |
| 25 | Deer Lodge | 3,035 | 88.5 |
| 26 | Shelby | 3,129 | 89.3 |
| 27 | Forsyth | 1,682 | 89.8 |
| 28 | Sun Prairie | 1,514 | 90.1 |
| 29 | Dillon | 4,020 | 91.6 |
| 30 | Boulder | 1,326 | 92.0 |
| 31 | Philipsburg | 1,012 | 92.5 |
| 32 | Havre | 9,333 | 93.0 |
| 33 | West Glendive | 1,968 | 93.0 |
| 34 | Butte-Silver Bow (balance) | 34,929 | 93.1 |
| 35 | Seeley Lake | 1,335 | 93.5 |
| 36 | Bonner-West Riverside | 1,445 | 94.3 |
| 37 | Red Lodge | 2,399 | 94.9 |
| 38 | White Sulphur Springs | 1,097 | 95.7 |
| 39 | Miles City | 8,412 | 97.3 |
| 40 | Great Falls | 60,412 | 97.9 |
| 41 | Fort Benton | 1,470 | 98.0 |
| 42 | East Helena | 1,855 | 98.7 |
| 43 | Polson | 5,334 | 99.1 |
| 44 | Hamilton | 4,949 | 99.7 |
| 45 | Sidney | 6,235 | 100.7 |
| 46 | Glendive | 4,831 | 101.3 |
| 47 | Stevensville | 2,172 | 101.9 |
| 48 | Big Timber | 1,530 | 102.1 |
| 49 | Columbus | 1,925 | 102.2 |
| 50 | Chinook | 1,460 | 102.8 |
| 51 | Laurel | 7,198 | 103.6 |
| 52 | Baker | 1,535 | 105.2 |
| 53 | Townsend | 2,232 | 105.3 |
| 54 | Colstrip | 2,156 | 105.6 |
| 55 | West Yellowstone | 1,457 | 106.2 |
| 56 | Glasgow | 3,194 | 106.9 |
| 57 | Malmstrom AFB | 4,191 | 108.4 |
| 58 | East Missoula | 2,072 | 111.7 |
| 59 | Livingston | 8,635 | 111.9 |
| 60 | Lockwood | 7,474 | 112.4 |
| 61 | Columbia Falls | 5,531 | 112.6 |
| 62 | Kalispell | 26,830 | 113.5 |
| 63 | Billings | 118,321 | 113.7 |
| 64 | Helena Valley Southeast | 9,533 | 113.8 |
| 65 | Helena | 33,126 | 113.8 |
| 66 | Helena West Side | 1,584 | 113.9 |
| 67 | Evergreen | 8,908 | 115.5 |
| 68 | Somers | 1,181 | 116.4 |
| 69 | Corvallis | 1,356 | 121.4 |
| 70 | Missoula | 75,600 | 123.3 |
| 71 | Lolo | 4,378 | 124.1 |
| 72 | Orchard Homes | 5,280 | 124.5 |
| 73 | Marion | 1,149 | 125.1 |
| 74 | Three Forks | 2,034 | 130.2 |
| 75 | Helena Valley West Central | 8,224 | 134.3 |
| 76 | Manhattan | 2,149 | 140.2 |
| 77 | Whitefish | 8,422 | 144.1 |
| 78 | Bigfork | 5,249 | 144.2 |
| 79 | Frenchtown | 1,629 | 145.9 |
| 80 | Belgrade | 11,425 | 151.2 |
| 81 | Helena Valley Northwest | 5,070 | 152.6 |
| 82 | Gallatin Gateway | 1,092 | 153.2 |
| 83 | Bozeman | 55,042 | 155.3 |
| 84 | Clancy | 1,729 | 156.5 |
| 85 | Churchill | 1,120 | 160.2 |
| 86 | King Arthur Park | 2,343 | 163.1 |
| 87 | Four Corners | 5,562 | 167.4 |
| 88 | Montana City | 2,899 | 170.0 |
| 89 | Wye | 1,222 | 173.5 |
| 90 | Helena Flats | 1,014 | 176.0 |
| 91 | Helena Valley Northeast | 4,398 | 176.1 |
| 92 | Lakeside | 2,730 | 186.8 |
| 93 | Big Sky | 2,388 | 190.9 |
| 94 | Pray | 1,018 | 192.6 |
| 95 | Wheatland | 1,185 | 193.4 |
Cities in Montana are ranked by col index. Only cities with populations above 1,000 are included. Data sourced from BLS / C2ER. Last updated 2026.