83 cities
| City | Rank | Annual Change ↓ | 2026 Pop. | 2020 Pop. |
|---|---|---|---|---|
| Star | 1 | 8.48% | 21,579 | 11,466 |
| Ponderay | 2 | 8.09% | 2,364 | 1,305 |
| Paul | 3 | 7.07% | 1,984 | 1,197 |
| Sugar City | 4 | 6.48% | 2,726 | 1,733 |
| Rathdrum | 5 | 6.2% | 14,293 | 9,291 |
| Middleton | 6 | 4.41% | 12,811 | 9,567 |
| Caldwell | 7 | 4.05% | 79,260 | 60,743 |
| Kimberly | 8 | 4.03% | 6,061 | 4,653 |
| Sandpoint | 9 | 3.94% | 11,300 | 8,731 |
| Kuna | 10 | 3.81% | 31,433 | 24,515 |
| Meridian | 11 | 3.5% | 149,862 | 119,496 |
| Post Falls | 12 | 3.42% | 49,048 | 39,304 |
| Fruitland | 13 | 3.29% | 7,560 | 6,114 |
| Nampa | 14 | 3.28% | 125,310 | 101,430 |
| Driggs | 15 | 3.12% | 2,481 | 2,033 |
| Emmett | 16 | 2.98% | 9,343 | 7,723 |
| Iona | 17 | 2.84% | 3,294 | 2,751 |
| Victor | 18 | 2.71% | 2,578 | 2,170 |
| Ammon | 19 | 2.69% | 21,204 | 17,876 |
| Rigby | 20 | 2.62% | 5,988 | 5,073 |
| Plummer | 21 | 2.34% | 1,179 | 1,016 |
| St. Anthony | 22 | 2.32% | 4,286 | 3,707 |
| McCall | 23 | 2.31% | 4,297 | 3,718 |
| Priest River | 24 | 2.28% | 1,933 | 1,674 |
| Bonners Ferry | 25 | 2.21% | 2,914 | 2,536 |
| Franklin | 26 | 2.17% | 1,178 | 1,027 |
| Preston | 27 | 2.13% | 6,427 | 5,625 |
| Filer | 28 | 2.03% | 3,166 | 2,787 |
| Jerome | 29 | 2.03% | 14,039 | 12,365 |
| Grangeville | 30 | 2.03% | 3,776 | 3,328 |
| Shelley | 31 | 1.96% | 5,472 | 4,841 |
| Hailey | 32 | 1.9% | 10,362 | 9,203 |
| Hayden | 33 | 1.85% | 17,561 | 15,650 |
| Homedale | 34 | 1.84% | 3,264 | 2,912 |
| Wilder | 35 | 1.82% | 1,789 | 1,596 |
| Weiser | 36 | 1.8% | 6,336 | 5,663 |
| Genesee | 37 | 1.61% | 1,139 | 1,031 |
| Payette | 38 | 1.56% | 9,031 | 8,200 |
| Twin Falls | 39 | 1.54% | 57,325 | 52,116 |
| Blackfoot | 40 | 1.52% | 13,631 | 12,410 |
| American Falls | 41 | 1.5% | 5,011 | 4,567 |
| New Plymouth | 42 | 1.41% | 1,654 | 1,515 |
| Pinehurst | 43 | 1.38% | 1,834 | 1,684 |
| Eagle | 44 | 1.36% | 34,375 | 31,603 |
| Chubbuck | 45 | 1.36% | 17,032 | 15,667 |
| Shoshone | 46 | 1.35% | 1,805 | 1,660 |
| Idaho Falls | 47 | 1.28% | 71,320 | 65,929 |
| Moscow | 48 | 1.26% | 27,580 | 25,521 |
| St. Maries | 49 | 1.23% | 2,548 | 2,365 |
| Mountain Home | 50 | 1.23% | 17,331 | 16,073 |
| Aberdeen | 51 | 1.22% | 1,902 | 1,763 |
| Garden City | 52 | 1.22% | 13,255 | 12,298 |
| Kellogg | 53 | 1.21% | 2,501 | 2,320 |
| Salmon | 54 | 1.21% | 3,337 | 3,096 |
| Spirit Lake | 55 | 1.2% | 2,524 | 2,346 |
| Osburn | 56 | 1.18% | 1,718 | 1,597 |
| Rupert | 57 | 1.09% | 6,483 | 6,063 |
| Parma | 58 | 1.08% | 2,246 | 2,101 |
| Ucon | 59 | 1.06% | 1,243 | 1,168 |
| Coeur d'Alene | 60 | 1.04% | 58,555 | 54,954 |
| Kamiah | 61 | 1.02% | 1,186 | 1,117 |
| Buhl | 62 | 1% | 4,856 | 4,570 |
| Burley | 63 | 0.91% | 12,435 | 11,763 |
| Wendell | 64 | 0.85% | 3,084 | 2,928 |
| Pocatello | 65 | 0.77% | 59,129 | 56,434 |
| Lapwai | 66 | 0.72% | 1,267 | 1,213 |
| Gooding | 67 | 0.68% | 3,877 | 3,721 |
| Hansen | 68 | 0.62% | 1,131 | 1,091 |
| Cascade | 69 | 0.58% | 1,038 | 1,001 |
| Rexburg | 70 | 0.57% | 41,160 | 39,764 |
| Montpelier | 71 | 0.52% | 2,724 | 2,639 |
| Heyburn | 72 | 0.51% | 3,781 | 3,669 |
| Orofino | 73 | 0.42% | 3,313 | 3,229 |
| Soda Springs | 74 | 0.38% | 3,186 | 3,113 |
| Ketchum | 75 | 0.36% | 3,634 | 3,558 |
| Malad City | 76 | 0.34% | 2,342 | 2,293 |
| Marsing | 77 | 0.32% | 1,252 | 1,231 |
| Lewiston | 78 | 0.32% | 34,914 | 34,250 |
| Boise City | 79 | 0.2% | 238,923 | 236,043 |
| Bellevue | 80 | 0.19% | 2,591 | 2,564 |
| Glenns Ferry | 81 | 0.08% | 1,290 | 1,284 |
| Sun Valley | 82 | -0.28% | 1,761 | 1,790 |
| Dalton Gardens | 83 | -0.4% | 2,477 | 2,539 |
Idaho's cities with over 1,000 residents show varied growth patterns from 2020 to 2025. Star leads with 8.48% annualized growth, followed by Ponderay (8.09%) and Paul (7.07%). The largest population centers are Boise City (238,923), Meridian (149,862), and Nampa (125,310). Of the 83 cities over 1,000 population, 81 are growing while 2 experienced population decline. Overall, cities averaged 1.95% annualized growth, with total urban population growing by 13.48% annually.