30 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Lisbon | 1 | 2,164 | 2,197 | -0.23% | 944 | 2 | City |
| Enderlin | 2 | 837 | 878 | -0.83% | 513 | 2 | City |
| Sydna | 3 | 381 | 387 | -0.26% | 10 | 36 | Township |
| Island Park | 4 | 271 | 282 | -0.37% | 8 | 34 | Township |
| Big Bend | 5 | 153 | 165 | -1.92% | 4 | 36 | Township |
| Moore | 6 | 139 | 142 | 0% | 4 | 36 | Township |
| Aliceton | 7 | 122 | 125 | 0% | 3 | 36 | Township |
| Tuller | 8 | 114 | 117 | 0% | 3 | 36 | Township |
| Shenford | 9 | 108 | 113 | -0.92% | 2 | 54 | Township |
| Greene | 10 | 106 | 111 | -0.93% | 3 | 35 | Township |
| Fort Ransom | 11 | 101 | 97 | 1% | 328 | 0 | City |
| Liberty | 12 | 94 | 103 | -3.09% | 3 | 34 | Township |
| Sheldon | 13 | 90 | 95 | -1.1% | 220 | 0 | City |
| Fort Ransom | 14 | 86 | 88 | 0% | 2 | 35 | Township |
| Bale | 15 | 82 | 78 | 2.5% | 2 | 36 | Township |
| Casey | 16 | 81 | 81 | 0% | 2 | 36 | Township |
| Elliott | 17 | 79 | 81 | 0% | 2 | 36 | Township |
| Preston | 18 | 71 | 73 | 0% | 2 | 36 | Township |
| Hanson | 19 | 58 | 60 | -1.69% | 2 | 36 | Township |
| Sandoun | 20 | 58 | 56 | 1.75% | 2 | 36 | Township |
| Northland | 21 | 55 | 59 | -1.79% | 2 | 36 | Township |
| Springer | 22 | 55 | 59 | -1.79% | 2 | 36 | Township |
| Alleghany | 23 | 50 | 51 | 0% | 1 | 36 | Township |
| Isley | 24 | 44 | 45 | 0% | 1 | 36 | Township |
| Coburn | 25 | 42 | 43 | 0% | 1 | 36 | Township |
| Rosemeade | 26 | 30 | 31 | 0% | 1 | 36 | Township |
| Owego | 27 | 28 | 29 | 0% | 1 | 36 | Township |
| Scoville | 28 | 26 | 27 | 0% | 1 | 18 | Township |
| Sheldon | 29 | 21 | 21 | 0% | 1 | 36 | Township |
| Elliott | 30 | 20 | 22 | 0% | 131 | 0 | City |
Lisbon is the largest city in Ransom County, with a population of 2,164.
Elliott is the smallest city in Ransom County, with a population of 20.
There are 30 cities in Ransom County, North Dakota.