| Rank | City | Land Area |
|---|---|---|
| 1 | Boise City, Idaho | 79.4 |
| 2 | Pocatello, Idaho | 32.2 |
| 3 | Nampa, Idaho | 31.2 |
| 4 | Eagle, Idaho | 28.9 |
| 5 | Meridian, Idaho | 26.8 |
| 6 | Idaho Falls, Idaho | 22.4 |
| 7 | Caldwell, Idaho | 22.1 |
| 8 | Twin Falls, Idaho | 18.1 |
| 9 | Kuna, Idaho | 18.1 |
| 10 | Lewiston, Idaho | 17.2 |
| 11 | Coeur d'Alene, Idaho | 15.6 |
| 12 | Post Falls, Idaho | 14.1 |
| 13 | Rexburg, Idaho | 9.8 |
| 14 | Hayden, Idaho | 9.6 |
| 15 | Ammon, Idaho | 7.3 |
| 16 | Moscow, Idaho | 6.8 |
| 17 | Preston, Idaho | 6.7 |
| 18 | Burley, Idaho | 6.1 |
| 19 | Mountain Home, Idaho | 6.1 |
| 20 | Blackfoot, Idaho | 5.8 |
| 21 | Star, Idaho | 5.8 |
| 22 | Middleton, Idaho | 5.7 |
| 23 | Jerome, Idaho | 5.5 |
| 24 | Rathdrum, Idaho | 5.0 |
| 25 | Chubbuck, Idaho | 4.2 |
| 26 | Garden City, Idaho | 4.0 |
| 27 | Sandpoint, Idaho | 4.0 |
| 28 | Payette, Idaho | 3.9 |
| 29 | Hailey, Idaho | 3.6 |
| 30 | Weiser, Idaho | 3.4 |
| 31 | Emmett, Idaho | 2.8 |
| 32 | Rupert, Idaho | 2.1 |
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