Plummer is the #1 ranked city in Idaho with 0.620 (diversity index). This ranking includes 100 Idaho cities with available data.
| # | City | Population | Diversity Index |
|---|---|---|---|
| 1 | Plummer | 1,055 | 0.620 |
| 2 | Mountain Home AFB | 3,198 | 0.521 |
| 3 | Fort Hall | 2,343 | 0.461 |
| 4 | Lapwai | 1,041 | 0.446 |
| 5 | Bellevue | 2,571 | 0.415 |
| 6 | Mountain Home | 16,265 | 0.406 |
| 7 | Paul | 1,615 | 0.402 |
| 8 | Homedale | 3,006 | 0.399 |
| 9 | Caldwell | 63,465 | 0.391 |
| 10 | Kamiah | 1,053 | 0.391 |
| 11 | Shoshone | 1,985 | 0.389 |
| 12 | Burley | 11,721 | 0.374 |
| 13 | Kimberly | 4,883 | 0.373 |
| 14 | Greenleaf | 1,152 | 0.372 |
| 15 | American Falls | 4,636 | 0.370 |
| 16 | Gooding | 3,731 | 0.365 |
| 17 | Victor | 3,024 | 0.365 |
| 18 | Tyhee | 1,475 | 0.355 |
| 19 | Weiser | 5,803 | 0.353 |
| 20 | Marsing | 1,245 | 0.350 |
| 21 | Nampa | 106,289 | 0.349 |
| 22 | St. Anthony | 3,818 | 0.336 |
| 23 | Carey | 1,197 | 0.332 |
| 24 | Payette | 8,358 | 0.327 |
| 25 | Jerome | 12,689 | 0.324 |
| 26 | Grace | 1,345 | 0.320 |
| 27 | Driggs | 2,655 | 0.319 |
| 28 | Buhl | 4,624 | 0.318 |
| 29 | Parma | 1,836 | 0.318 |
| 30 | Blackfoot | 12,628 | 0.316 |
| 31 | Chubbuck | 15,900 | 0.313 |
| 32 | Twin Falls | 53,219 | 0.309 |
| 33 | Sun Valley | 1,383 | 0.308 |
| 34 | Fruitland | 6,405 | 0.301 |
| 35 | Middleton | 10,101 | 0.297 |
| 36 | Orofino | 3,254 | 0.290 |
| 37 | Lincoln | 3,759 | 0.284 |
| 38 | Boise City | 235,701 | 0.283 |
| 39 | Idaho Falls | 66,672 | 0.276 |
| 40 | Emmett | 7,948 | 0.275 |
| 41 | Rupert | 6,157 | 0.274 |
| 42 | Meridian | 124,865 | 0.271 |
| 43 | Wendell | 2,940 | 0.267 |
| 44 | Hansen | 1,414 | 0.266 |
| 45 | Bonners Ferry | 2,615 | 0.265 |
| 46 | Shelley | 4,987 | 0.262 |
| 47 | Wilder | 1,690 | 0.261 |
| 48 | Ashton | 1,329 | 0.260 |
| 49 | Rigby | 5,251 | 0.252 |
| 50 | Pocatello | 57,152 | 0.251 |
| 51 | Ponderay | 1,456 | 0.249 |
| 52 | New Plymouth | 1,863 | 0.249 |
| 53 | Star | 13,231 | 0.245 |
| 54 | Moscow | 25,868 | 0.243 |
| 55 | Hailey | 9,439 | 0.239 |
| 56 | Garden City | 12,483 | 0.237 |
| 57 | Post Falls | 41,716 | 0.236 |
| 58 | Moreland | 1,386 | 0.231 |
| 59 | Rexburg | 39,589 | 0.227 |
| 60 | Priest River | 2,058 | 0.223 |
| 61 | Robie Creek | 1,240 | 0.217 |
| 62 | Eagle | 31,490 | 0.216 |
| 63 | Glenns Ferry | 1,443 | 0.214 |
| 64 | Sugar City | 2,011 | 0.213 |
| 65 | Osburn | 1,728 | 0.210 |
| 66 | Pinehurst | 2,014 | 0.209 |
| 67 | Coeur d'Alene | 55,558 | 0.208 |
| 68 | Sandpoint | 9,244 | 0.203 |
| 69 | Spirit Lake | 1,768 | 0.199 |
| 70 | Moyie Springs | 1,420 | 0.197 |
| 71 | Rathdrum | 10,133 | 0.190 |
| 72 | Kuna | 25,960 | 0.187 |
| 73 | Ammon | 18,496 | 0.181 |
| 74 | Genesee | 1,312 | 0.174 |
| 75 | Kellogg | 2,232 | 0.170 |
| 76 | Hayden | 16,021 | 0.166 |
| 77 | Lewiston | 34,471 | 0.164 |
| 78 | Ucon | 1,537 | 0.155 |
| 79 | Dalton Gardens | 2,526 | 0.155 |
| 80 | Wallace | 1,127 | 0.148 |
| 81 | Grangeville | 3,443 | 0.143 |
| 82 | Preston | 5,800 | 0.141 |
| 83 | Salmon | 3,196 | 0.137 |
| 84 | Ketchum | 3,551 | 0.126 |
| 85 | Riverside | 1,126 | 0.125 |
| 86 | Kootenai | 1,076 | 0.124 |
| 87 | Aberdeen | 2,418 | 0.118 |
| 88 | Avimor | 1,289 | 0.116 |
| 89 | Heyburn | 3,678 | 0.112 |
| 90 | Iona | 2,882 | 0.110 |
| 91 | Montpelier | 2,681 | 0.106 |
| 92 | Hagerman | 1,198 | 0.089 |
| 93 | Cottonwood | 1,138 | 0.084 |
| 94 | Filer | 2,837 | 0.083 |
| 95 | Soda Springs | 3,150 | 0.079 |
| 96 | Groveland | 1,204 | 0.073 |
| 97 | Hidden Springs | 3,490 | 0.067 |
| 98 | St. Maries | 3,032 | 0.065 |
| 99 | Malad City | 2,441 | 0.020 |
| 100 | McCall | 3,847 | 0.012 |
Cities in Idaho are ranked by diversity index. Only cities with populations above 1,000 are included. Data sourced from U.S. Census Bureau ACS. Last updated 2026.