41 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Steele | 1 | 644 | 663 | -0.62% | 1,160 | 1 | City |
| Tappen | 2 | 208 | 215 | -0.48% | 198 | 1 | City |
| Woodlawn | 3 | 113 | 119 | -1.74% | 3 | 35 | Township |
| Tappen | 4 | 99 | 102 | -1% | 3 | 35 | Township |
| Sibley | 5 | 88 | 90 | -1.12% | 3 | 32 | Township |
| Dawson | 6 | 72 | 74 | 0% | 211 | 0 | City |
| Crystal Springs | 7 | 67 | 71 | -1.47% | 2 | 35 | Township |
| Pettibone | 8 | 57 | 59 | 0% | 313 | 0 | City |
| Tuttle | 9 | 57 | 59 | 0% | 230 | 0 | City |
| Allen | 10 | 52 | 55 | -1.89% | 2 | 34 | Township |
| Tuttle | 11 | 47 | 50 | -2.08% | 1 | 34 | Township |
| Pleasant Hill | 12 | 40 | 43 | -2.44% | 1 | 35 | Township |
| Valley | 13 | 39 | 42 | -2.5% | 1 | 35 | Township |
| Pettibone | 14 | 38 | 41 | -2.56% | 1 | 32 | Township |
| Peace | 15 | 35 | 38 | -2.78% | 1 | 34 | Township |
| Robinson | 16 | 34 | 36 | 0% | 198 | 0 | City |
| Excelsior | 17 | 31 | 28 | 3.33% | 1 | 36 | Township |
| Vernon | 18 | 30 | 33 | -3.23% | 1 | 30 | Township |
| Clear Lake | 19 | 27 | 29 | -3.57% | 1 | 35 | Township |
| Buckeye | 20 | 26 | 29 | -3.7% | 1 | 33 | Township |
| Merkel | 21 | 25 | 28 | -3.85% | 0.00 | 66 | Township |
| Bunker | 22 | 24 | 27 | -4% | 1 | 36 | Township |
| Westford | 23 | 24 | 27 | -4% | 1 | 33 | Township |
| Baker | 24 | 23 | 26 | -4.17% | 1 | 39 | Township |
| Wallace | 25 | 22 | 25 | -4.35% | 1 | 34 | Township |
| Weiser | 26 | 22 | 25 | -4.35% | 1 | 35 | Township |
| Haynes | 27 | 21 | 24 | -4.55% | 1 | 34 | Township |
| Northwest | 28 | 21 | 21 | 0% | 1 | 33 | Township |
| Tanner | 29 | 21 | 21 | 0% | 1 | 34 | Township |
| Lake Williams | 30 | 20 | 23 | -4.76% | 1 | 31 | Township |
| Stewart | 31 | 20 | 20 | 0% | 1 | 33 | Township |
| Chestina | 32 | 19 | 22 | -5% | 1 | 36 | Township |
| Graf | 33 | 18 | 18 | 0% | 1 | 31 | Township |
| Petersville | 34 | 18 | 18 | 0% | 1 | 34 | Township |
| Atwood | 35 | 15 | 15 | 0% | 0.00 | 33 | Township |
| Williams | 36 | 12 | 12 | 0% | 0.00 | 34 | Township |
| Robinson | 37 | 11 | 11 | 0% | 0.00 | 34 | Township |
| Crown Hill | 38 | 10 | 10 | 0% | 0.00 | 31 | Township |
| Frettim | 39 | 10 | 10 | 0% | 0.00 | 33 | Township |
| Rexine | 40 | 7 | 7 | 0% | 0.00 | 34 | Township |
| Quinby | 41 | 1 | 1 | 0% | 0.00 | 29 | Township |
Steele is the largest city in Kidder County, with a population of 644.
Quinby is the smallest city in Kidder County, with a population of 1.
There are 41 cities in Kidder County, North Dakota.