Kamiah is the #1 ranked city in Idaho with 69.5 (col index). This ranking includes 100 Idaho cities with available data.
| # | City | Population | COL Index |
|---|---|---|---|
| 1 | Kamiah | 1,053 | 69.5 |
| 2 | Fort Hall | 2,343 | 70.0 |
| 3 | Salmon | 3,196 | 74.4 |
| 4 | Gooding | 3,731 | 76.9 |
| 5 | Osburn | 1,728 | 81.0 |
| 6 | Hansen | 1,414 | 81.1 |
| 7 | Grace | 1,345 | 82.5 |
| 8 | Montpelier | 2,681 | 82.6 |
| 9 | Glenns Ferry | 1,443 | 84.9 |
| 10 | Soda Springs | 3,150 | 85.3 |
| 11 | Weiser | 5,803 | 85.3 |
| 12 | Kellogg | 2,232 | 85.8 |
| 13 | St. Anthony | 3,818 | 86.1 |
| 14 | Wallace | 1,127 | 86.5 |
| 15 | Plummer | 1,055 | 87.6 |
| 16 | Rupert | 6,157 | 88.0 |
| 17 | American Falls | 4,636 | 88.4 |
| 18 | Homedale | 3,006 | 88.9 |
| 19 | Wendell | 2,940 | 89.0 |
| 20 | St. Maries | 3,032 | 89.3 |
| 21 | Marsing | 1,245 | 90.1 |
| 22 | Parma | 1,836 | 90.4 |
| 23 | Aberdeen | 2,418 | 90.8 |
| 24 | Lapwai | 1,041 | 91.3 |
| 25 | Shoshone | 1,985 | 91.3 |
| 26 | Carey | 1,197 | 91.5 |
| 27 | Wilder | 1,690 | 91.7 |
| 28 | Cottonwood | 1,138 | 93.1 |
| 29 | Payette | 8,358 | 93.7 |
| 30 | Buhl | 4,624 | 93.9 |
| 31 | Pocatello | 57,152 | 94.4 |
| 32 | Orofino | 3,254 | 94.6 |
| 33 | Priest River | 2,058 | 94.8 |
| 34 | Grangeville | 3,443 | 94.9 |
| 35 | Preston | 5,800 | 95.3 |
| 36 | Hagerman | 1,198 | 96.6 |
| 37 | New Plymouth | 1,863 | 97.0 |
| 38 | Paul | 1,615 | 97.9 |
| 39 | Burley | 11,721 | 98.5 |
| 40 | Filer | 2,837 | 98.6 |
| 41 | Bonners Ferry | 2,615 | 98.8 |
| 42 | Emmett | 7,948 | 99.4 |
| 43 | Jerome | 12,689 | 99.9 |
| 44 | Moyie Springs | 1,420 | 100.1 |
| 45 | Blackfoot | 12,628 | 101.0 |
| 46 | Ashton | 1,329 | 101.5 |
| 47 | Moscow | 25,868 | 102.3 |
| 48 | Pinehurst | 2,014 | 102.4 |
| 49 | Rexburg | 39,589 | 102.5 |
| 50 | Ponderay | 1,456 | 103.2 |
| 51 | Fruitland | 6,405 | 103.3 |
| 52 | Malad City | 2,441 | 103.8 |
| 53 | Mountain Home | 16,265 | 103.9 |
| 54 | Twin Falls | 53,219 | 104.6 |
| 55 | Heyburn | 3,678 | 104.8 |
| 56 | Moreland | 1,386 | 105.6 |
| 57 | Idaho Falls | 66,672 | 108.2 |
| 58 | Shelley | 4,987 | 109.0 |
| 59 | Kimberly | 4,883 | 109.8 |
| 60 | Spirit Lake | 1,768 | 110.2 |
| 61 | Lewiston | 34,471 | 111.7 |
| 62 | Caldwell | 63,465 | 113.3 |
| 63 | Sugar City | 2,011 | 114.9 |
| 64 | Rigby | 5,251 | 116.3 |
| 65 | Chubbuck | 15,900 | 117.3 |
| 66 | Ucon | 1,537 | 118.6 |
| 67 | Groveland | 1,204 | 120.3 |
| 68 | Garden City | 12,483 | 120.3 |
| 69 | Genesee | 1,312 | 120.7 |
| 70 | Sandpoint | 9,244 | 121.0 |
| 71 | Nampa | 106,289 | 121.6 |
| 72 | McCall | 3,847 | 121.8 |
| 73 | Greenleaf | 1,152 | 122.4 |
| 74 | Ammon | 18,496 | 123.9 |
| 75 | Lincoln | 3,759 | 125.0 |
| 76 | Kootenai | 1,076 | 125.5 |
| 77 | Middleton | 10,101 | 125.9 |
| 78 | Coeur d'Alene | 55,558 | 126.4 |
| 79 | Post Falls | 41,716 | 126.9 |
| 80 | Iona | 2,882 | 131.1 |
| 81 | Riverside | 1,126 | 131.5 |
| 82 | Driggs | 2,655 | 133.2 |
| 83 | Rathdrum | 10,133 | 135.1 |
| 84 | Bellevue | 2,571 | 135.1 |
| 85 | Hailey | 9,439 | 136.2 |
| 86 | Tyhee | 1,475 | 136.7 |
| 87 | Victor | 3,024 | 137.4 |
| 88 | Mountain Home AFB | 3,198 | 138.3 |
| 89 | Boise City | 235,701 | 138.9 |
| 90 | Hayden | 16,021 | 141.2 |
| 91 | Dalton Gardens | 2,526 | 143.5 |
| 92 | Kuna | 25,960 | 149.3 |
| 93 | Star | 13,231 | 153.9 |
| 94 | Ketchum | 3,551 | 159.9 |
| 95 | Meridian | 124,865 | 160.1 |
| 96 | Avimor | 1,289 | 176.3 |
| 97 | Eagle | 31,490 | 180.7 |
| 98 | Sun Valley | 1,383 | 185.9 |
| 99 | Robie Creek | 1,240 | 187.4 |
| 100 | Hidden Springs | 3,490 | 230.1 |
Cities in Idaho are ranked by col index. Only cities with populations above 1,000 are included. Data sourced from BLS / C2ER. Last updated 2026.