Idaho is one of the states in the northwestern region of the United States, and has population around 1.6 million with density of 7.40 per km2 on the area of 216,636 km2. Boise city is the largest city in Idaho state with the population of 214,237 (2013 estimation) at the density of 1,027 inhabitants per km2 on the area of 208 km2. Te density of the states is 7th least populated among the 50 united states, there are around 14 cities with above 15,000 inhabitants in Idaho state.
| Rank | Name | Population | Area (km²) | Density ( inhabitants/km²) | County |
|---|---|---|---|---|---|
| 1 | Boise City | 214,237 | 208 | 1,027 | Ada |
| 2 | Nampa | 86,518 | 81 | 1,060 | Canyon |
| 3 | Meridian | 83,596 | 70 | 1,193 | Ada |
| 4 | Idaho Falls | 58,292 | 58 | 1,003 | Bonneville |
| 5 | Pocatello | 54,350 | 84 | 646 | Bannock |
| 6 | Caldwell | 48,957 | 57 | 854 | Canyon |
| 7 | Coeur d'Alene | 46,402 | 40 | 1,149 | Kootenai |
| 8 | Twin Falls | 45,981 | 47 | 972 | Twin Falls |
| 9 | Lewiston | 32,401 | 44 | 726 | Nez Perce |
| 10 | Post Falls | 29,357 | 37 | 790 | Kootenai |
| 11 | Rexburg | 26,520 | 25 | 1,057 | Madison |
| 12 | Moscow | 24,534 | 17 | 1,377 | Latah |
| 13 | Eagle | 21,646 | 76 | 284 | Ada |
| 14 | Kuna | 16,532 | 46 | 352 | Ada |