| Rank | City | 2018 Population (Est.) | Growth Rate (Annual) |
|---|---|---|---|
| 1 | Boise City | 226,570 | 1.4% |
| 2 | Meridian | 99,926 | 4.2% |
| 3 | Nampa | 93,590 | 2.0% |
| 4 | Idaho Falls | 61,076 | 1.0% |
| 5 | Pocatello | 55,193 | 0.2% |
| 6 | Caldwell | 54,660 | 2.4% |
| 7 | Coeur d'Alene | 50,665 | 2.0% |
| 8 | Twin Falls | 49,202 | 1.6% |
| 9 | Post Falls | 33,290 | 2.7% |
| 10 | Lewiston | 32,820 | 0.4% |
| 11 | Rexburg | 28,337 | 1.5% |
| 12 | Eagle | 26,089 | 3.9% |
| 13 | Moscow | 25,146 | 0.8% |
| 14 | Kuna | 19,200 | 3.4% |
| 15 | Ammon | 15,540 | 1.7% |
| 16 | Chubbuck | 14,869 | 0.9% |
| 17 | Hayden | 14,693 | 1.4% |
| 18 | Mountain Home | 14,224 | 0.0% |
| 19 | Blackfoot | 11,922 | 0.0% |
| 20 | Garden City | 11,890 | 1.2% |
| 21 | Jerome | 11,636 | 1.0% |
| 22 | Burley | 10,474 | 0.2% |
| 23 | Star | 9,076 | 6.6% |
| 24 | Sandpoint | 8,390 | 1.9% |
| 25 | Hailey | 8,282 | 0.6% |
| 26 | Rathdrum | 8,281 | 2.8% |
| 27 | Middleton | 7,439 | 4.3% |
| 28 | Payette | 7,434 | 0.0% |
| 29 | Emmett | 6,829 | 0.6% |
| 30 | Rupert | 5,814 | 0.7% |
| 31 | Preston | 5,391 | 0.5% |
| 32 | Weiser | 5,365 | -0.4% |
| 33 | Fruitland | 5,234 | 1.6% |
| 34 | Shelley | 4,413 | 0.0% |
| 35 | Buhl | 4,365 | 0.8% |
| 36 | American Falls | 4,280 | -0.6% |
| 37 | Rigby | 4,062 | 0.4% |
| 38 | Kimberly | 3,858 | 2.4% |
| 39 | St. Anthony | 3,549 | 0.0% |
| 40 | Gooding | 3,452 | -0.5% |
| 41 | McCall | 3,351 | 1.6% |
| 42 | Heyburn | 3,329 | 1.1% |
| 43 | Grangeville | 3,166 | 0.1% |
| 44 | Salmon | 3,108 | -0.0% |
| 45 | Soda Springs | 3,038 | -0.1% |
| 46 | Orofino | 3,035 | -0.5% |
| 47 | Filer | 2,776 | 1.5% |
| 48 | Ketchum | 2,763 | 0.4% |
| 49 | Wendell | 2,702 | -0.4% |
| 50 | Homedale | 2,643 | 0.1% |
| 51 | Bonners Ferry | 2,603 | 0.3% |
| 52 | Montpelier | 2,526 | -0.4% |
| 53 | St. Maries | 2,443 | 0.2% |
| 54 | Dalton Gardens | 2,389 | 0.3% |
| 55 | Bellevue | 2,362 | 0.5% |
| 56 | Spirit Lake | 2,318 | 2.5% |
| 57 | Iona | 2,282 | 3.4% |
| 58 | Victor | 2,145 | 1.5% |
| 59 | Malad City | 2,104 | 0.1% |
| 60 | Parma | 2,104 | 0.8% |
| 61 | Kellogg | 2,081 | -0.3% |
| 62 | Aberdeen | 1,950 | -0.3% |
| 63 | Priest River | 1,811 | 0.5% |
| 64 | Driggs | 1,805 | 1.2% |
| 65 | Wilder | 1,720 | 1.7% |
| 66 | Pinehurst | 1,585 | -0.3% |
| 67 | Osburn | 1,519 | -0.3% |
| 68 | New Plymouth | 1,515 | -0.2% |
| 69 | Shoshone | 1,502 | 0.4% |
| 70 | Sun Valley | 1,438 | 0.3% |
| 71 | Sugar City | 1,361 | -1.5% |
| 72 | Paul | 1,312 | 1.7% |
| 73 | Marsing | 1,298 | 3.3% |
| 74 | Kamiah | 1,290 | -0.1% |
| 75 | Hansen | 1,279 | 1.6% |
| 76 | Glenns Ferry | 1,278 | -0.5% |
| 77 | Ucon | 1,144 | 0.5% |
| 78 | Lapwai | 1,142 | 0.1% |
| 79 | Ponderay | 1,107 | -0.4% |
| 80 | Ashton | 1,063 | -0.8% |
| 81 | Challis | 1,062 | -0.3% |
| 82 | Plummer | 1,024 | -0.3% |
| 83 | Cascade | 981 | 0.6% |
| 84 | Genesee | 968 | 0.2% |
| 85 | Cottonwood | 923 | 0.4% |
| 86 | Grace | 921 | 0.1% |
| 87 | Troy | 896 | 0.6% |
| 88 | Inkom | 887 | 0.5% |
| 89 | Arco | 880 | -1.7% |
| 90 | Greenleaf | 880 | 0.6% |
| 91 | Hagerman | 872 | – |
| 92 | Council | 865 | 0.4% |
| 93 | Kootenai | 834 | 3.0% |
| 94 | McCammon | 821 | 0.2% |
| 95 | Franklin | 820 | 3.6% |
| 96 | Potlatch | 817 | 0.2% |
| 97 | Hazelton | 809 | 1.0% |
| 98 | Oakley | 797 | 0.6% |
| 99 | Menan | 794 | 1.0% |
| 100 | Wallace | 761 | -0.4% |
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