| Rank | City | 2009 Population (Est.) | Growth Rate (Annual) |
|---|---|---|---|
| 1 | Star | 5,012 | 12.7% |
| 2 | Ammon | 13,628 | 9.6% |
| 3 | Kuna | 13,250 | 9.4% |
| 4 | Victor | 1,867 | 7.8% |
| 5 | Meridian | 66,377 | 7.7% |
| 6 | Middleton | 5,541 | 7.4% |
| 7 | Rexburg | 28,459 | 6.0% |
| 8 | Eagle | 19,397 | 5.7% |
| 9 | Caldwell | 42,295 | 5.5% |
| 10 | Nampa | 80,366 | 4.9% |
| 11 | Post Falls | 26,315 | 4.8% |
| 12 | Rathdrum | 6,783 | 4.3% |
| 13 | Hayden | 12,922 | 4.0% |
| 14 | Notus | 624 | 3.9% |
| 15 | Hailey | 7,993 | 3.0% |
| 16 | McCall | 2,604 | 2.8% |
| 17 | Melba | 563 | 2.7% |
| 18 | Spirit Lake | 1,728 | 2.7% |
| 19 | Coeur d'Alene | 43,086 | 2.7% |
| 20 | Chubbuck | 11,920 | 2.6% |
| 21 | Fruitland | 4,749 | 2.5% |
| 22 | Filer | 2,172 | 2.5% |
| 23 | Sandpoint | 8,357 | 2.5% |
| 24 | Twin Falls | 42,087 | 2.4% |
| 25 | Driggs | 1,408 | 2.2% |
| 26 | Kimberly | 3,158 | 2.2% |
| 27 | Sugar City | 1,541 | 2.2% |
| 28 | Bellevue | 2,215 | 2.1% |
| 29 | Ucon | 1,084 | 1.7% |
| 30 | Swan Valley | 245 | 1.7% |
| 31 | Moscow | 24,252 | 1.6% |
| 32 | Jerome | 9,200 | 1.6% |
| 33 | Shoshone | 1,594 | 1.5% |
| 34 | Lewisville | 526 | 1.5% |
| 35 | Emmett | 6,314 | 1.4% |
| 36 | Rigby | 3,414 | 1.4% |
| 37 | Clifton | 238 | 1.3% |
| 38 | Oldtown | 199 | 1.3% |
| 39 | Ponderay | 732 | 1.2% |
| 40 | Moyie Springs | 728 | 1.2% |
| 41 | Ketchum | 3,319 | 1.2% |
| 42 | Shelley | 4,252 | 1.2% |
| 43 | Island Park | 279 | 1.2% |
| 44 | Garden City | 11,789 | 1.2% |
| 45 | Dietrich | 165 | 1.2% |
| 46 | Clark Fork | 585 | 1.2% |
| 47 | Kootenai | 522 | 1.1% |
| 48 | Priest River | 1,976 | 1.1% |
| 49 | Dover | 504 | 1.1% |
| 50 | Hayden Lake | 557 | 1.1% |
| 51 | East Hope | 219 | 1.1% |
| 52 | Hope | 86 | 1.1% |
| 53 | Cottonwood | 1,024 | 1.0% |
| 54 | Iona | 1,332 | 1.0% |
| 55 | Marsing | 969 | 1.0% |
| 56 | Preston | 5,067 | 1.0% |
| 57 | Mountain Home | 12,350 | 0.9% |
| 58 | Hazelton | 744 | 0.9% |
| 59 | Murtaugh | 149 | 0.9% |
| 60 | Pocatello | 54,986 | 0.8% |
| 61 | Idaho Falls | 54,346 | 0.8% |
| 62 | Mud Lake | 287 | 0.8% |
| 63 | Hansen | 1,028 | 0.7% |
| 64 | Parma | 1,879 | 0.7% |
| 65 | Hagerman | 820 | 0.7% |
| 66 | Payette | 7,653 | 0.7% |
| 67 | Harrison | 284 | 0.6% |
| 68 | Crouch | 164 | 0.6% |
| 69 | Stanley | 105 | 0.6% |
| 70 | Fairfield | 421 | 0.6% |
| 71 | Blackfoot | 11,006 | 0.6% |
| 72 | Irwin | 178 | 0.6% |
| 73 | Boise City | 204,778 | 0.6% |
| 74 | Franklin | 671 | 0.6% |
| 75 | Idaho City | 486 | 0.6% |
| 76 | Dalton Gardens | 2,377 | 0.5% |
| 77 | New Plymouth | 1,450 | 0.4% |
| 78 | Richfield | 426 | 0.4% |
| 79 | Greenleaf | 895 | 0.4% |
| 80 | Donnelly | 144 | 0.4% |
| 81 | Sun Valley | 1,476 | 0.4% |
| 82 | State Line | 62 | 0.4% |
| 83 | Wendell | 2,450 | 0.4% |
| 84 | Weston | 439 | 0.4% |
| 85 | St. Anthony | 3,447 | 0.3% |
| 86 | Lewiston | 31,661 | 0.3% |
| 87 | Buhl | 4,088 | 0.3% |
| 88 | Horseshoe Bend | 869 | 0.3% |
| 89 | McCammon | 837 | 0.3% |
| 90 | Menan | 722 | 0.3% |
| 91 | Carey | 521 | 0.2% |
| 92 | Hauser | 767 | 0.2% |
| 93 | Grand View | 477 | 0.1% |
| 94 | Athol | 685 | 0.1% |
| 95 | Wilder | 1,477 | 0.1% |
| 96 | Teton | 671 | 0.1% |
| 97 | Ferdinand | 145 | 0.1% |
| 98 | Cambridge | 373 | 0.1% |
| 99 | Basalt | 421 | 0.1% |
| 100 | Parker | 319 | 0.0% |
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