62 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Williston | 1 | 28,696 | 29,318 | -0.43% | 1,115 | 26 | City |
| Tioga | 2 | 2,168 | 2,212 | -0.41% | 641 | 3 | City |
| Missouri Ridge | 3 | 1,683 | 1,609 | 4.02% | 58 | 29 | Township |
| Williston | 4 | 1,136 | 1,086 | 3.93% | 81 | 14 | Township |
| Pherrin | 5 | 960 | 917 | 3.9% | 27 | 36 | Township |
| Stony Creek | 6 | 858 | 818 | 4% | 17 | 50 | Township |
| Ray | 7 | 758 | 746 | 0.26% | 574 | 1 | City |
| Trenton | 8 | 719 | 290 | 7.15% | 687 | 1 | CDP |
| Trenton | 9 | 684 | 654 | 3.95% | 23 | 30 | Township |
| Round Prairie | 10 | 414 | 397 | 4.02% | 8 | 51 | Township |
| Judson | 11 | 396 | 362 | 4.76% | 11 | 36 | Township |
| Truax | 12 | 234 | 223 | 4% | 5 | 49 | Township |
| Springbrook | 13 | 227 | 220 | 3.18% | 7 | 35 | Township |
| Grenora | 14 | 219 | 221 | -0.45% | 360 | 1 | City |
| Pleasant Valley | 15 | 176 | 167 | 3.53% | 5 | 36 | Township |
| Blacktail | 16 | 141 | 23 | 6.82% | 425 | 0 | CDP |
| McGregor | 17 | 139 | 95 | 6.92% | 1,103 | 0 | CDP |
| Hardscrabble | 18 | 115 | 111 | 3.6% | 2 | 50 | Township |
| Wildrose | 19 | 113 | 113 | 0% | 390 | 0 | City |
| Twelve Mile | 20 | 104 | 98 | 5.05% | 2 | 62 | Township |
| Tioga | 21 | 97 | 90 | 5.43% | 3 | 32 | Township |
| Sauk Valley | 22 | 95 | 87 | 4.4% | 3 | 36 | Township |
| Blacktail | 23 | 94 | 90 | 3.3% | 3 | 36 | Township |
| Buford | 24 | 92 | 89 | 3.37% | 3 | 34 | Township |
| Epping | 25 | 87 | 86 | 0% | 233 | 0 | City |
| Dry Fork | 26 | 80 | 70 | 6.67% | 1 | 54 | Township |
| West Bank | 27 | 79 | 75 | 3.95% | 2 | 37 | Township |
| Mont | 28 | 70 | 67 | 2.94% | 2 | 33 | Township |
| Scorio | 29 | 70 | 67 | 2.94% | 2 | 35 | Township |
| Equality | 30 | 65 | 60 | 4.84% | 2 | 35 | Township |
| Tyrone | 31 | 62 | 59 | 3.33% | 2 | 36 | Township |
| Long Creek | 32 | 61 | 52 | 7.02% | 258 | 0 | CDP |
| Alamo | 33 | 56 | 55 | 0% | 102 | 1 | City |
| Ray | 34 | 55 | 55 | 0% | 2 | 36 | Township |
| Athens | 35 | 48 | 42 | 9.09% | 1 | 36 | Township |
| Lindahl | 36 | 48 | 43 | 4.35% | 1 | 36 | Township |
| Wheelock | 37 | 46 | 44 | 2.22% | 1 | 36 | Township |
| View | 38 | 44 | 40 | 7.32% | 1 | 36 | Township |
| Winner | 39 | 41 | 37 | 7.89% | 1 | 36 | Township |
| Hazel | 40 | 40 | 38 | 2.56% | 1 | 35 | Township |
| Springbrook | 41 | 35 | 34 | 0% | 94 | 0 | City |
| Strandahl | 42 | 33 | 30 | 3.13% | 1 | 33 | Township |
| Ellisville | 43 | 31 | 29 | 3.33% | 1 | 36 | Township |
| Farmvale | 44 | 31 | 31 | 3.33% | 1 | 36 | Township |
| Good Luck | 45 | 31 | 31 | 3.33% | 1 | 36 | Township |
| Oliver | 46 | 31 | 31 | 3.33% | 1 | 36 | Township |
| Big Stone | 47 | 28 | 29 | 0% | 1 | 36 | Township |
| South Meadow | 48 | 27 | 26 | 3.85% | 1 | 36 | Township |
| Big Meadow | 49 | 24 | 23 | 4.35% | 1 | 35 | Township |
| Blue Ridge | 50 | 24 | 21 | 9.09% | 1 | 34 | Township |
| Bonetraill | 51 | 23 | 22 | 4.55% | 1 | 36 | Township |
| Brooklyn | 52 | 23 | 20 | 4.55% | 1 | 36 | Township |
| Barr Butte | 53 | 22 | 21 | 4.76% | 1 | 36 | Township |
| East Fork | 54 | 22 | 21 | 4.76% | 1 | 36 | Township |
| Grenora | 55 | 22 | 21 | 4.76% | 1 | 31 | Township |
| Orthell | 56 | 22 | 21 | 4.76% | 1 | 36 | Township |
| Rainbow | 57 | 19 | 18 | 0% | 1 | 36 | Township |
| Champion | 58 | 16 | 15 | 6.67% | 0.00 | 36 | Township |
| Bull Butte | 59 | 14 | 13 | 7.69% | 0.00 | 51 | Township |
| Climax | 60 | 11 | 10 | 0% | 0.00 | 33 | Township |
| Dublin | 61 | 11 | 10 | 10% | 0.00 | 36 | Township |
| Rock Island | 62 | 4 | 4 | 0% | 0.00 | 34 | Township |
Williston is the largest city in Williams County, with a population of 28,696.
Rock Island is the smallest city in Williams County, with a population of 4.
There are 62 cities in Williams County, North Dakota.