58 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Williston | 1 | 28,572 | 29,318 | -0.43% | 1,110 | 26 | City |
| Tioga | 2 | 2,159 | 2,212 | -0.42% | 639 | 3 | City |
| Missouri Ridge | 3 | 1,748 | 1,609 | 3.86% | 60 | 29 | Township |
| Williston | 4 | 1,179 | 1,086 | 3.79% | 84 | 14 | Township |
| Pherrin | 5 | 996 | 917 | 3.75% | 28 | 36 | Township |
| Stony Creek | 6 | 891 | 818 | 3.85% | 18 | 50 | Township |
| Ray | 7 | 761 | 746 | 0.4% | 577 | 1 | City |
| Trenton | 8 | 710 | 654 | 3.8% | 23 | 30 | Township |
| Round Prairie | 9 | 430 | 397 | 3.86% | 8 | 51 | Township |
| Judson | 10 | 414 | 362 | 4.55% | 12 | 36 | Township |
| Truax | 11 | 243 | 223 | 3.85% | 5 | 49 | Township |
| Springbrook | 12 | 234 | 220 | 3.08% | 7 | 35 | Township |
| Grenora | 13 | 219 | 221 | 0% | 360 | 1 | City |
| Pleasant Valley | 14 | 182 | 167 | 3.41% | 5 | 36 | Township |
| Hardscrabble | 15 | 119 | 111 | 3.48% | 2 | 50 | Township |
| Wildrose | 16 | 113 | 113 | 0% | 390 | 0 | City |
| Twelve Mile | 17 | 109 | 98 | 4.81% | 2 | 62 | Township |
| Tioga | 18 | 102 | 90 | 5.15% | 3 | 32 | Township |
| Sauk Valley | 19 | 99 | 87 | 4.21% | 3 | 36 | Township |
| Blacktail | 20 | 97 | 90 | 3.19% | 3 | 36 | Township |
| Buford | 21 | 95 | 89 | 3.26% | 3 | 34 | Township |
| Epping | 22 | 87 | 86 | 0% | 233 | 0 | City |
| Dry Fork | 23 | 85 | 70 | 6.25% | 2 | 54 | Township |
| West Bank | 24 | 82 | 75 | 3.8% | 2 | 37 | Township |
| Mont | 25 | 72 | 67 | 2.86% | 2 | 33 | Township |
| Scorio | 26 | 72 | 67 | 2.86% | 2 | 35 | Township |
| Equality | 27 | 68 | 60 | 4.62% | 2 | 35 | Township |
| Tyrone | 28 | 64 | 59 | 3.23% | 2 | 36 | Township |
| Alamo | 29 | 56 | 55 | 0% | 102 | 1 | City |
| Ray | 30 | 55 | 55 | 0% | 2 | 36 | Township |
| Athens | 31 | 52 | 42 | 8.33% | 1 | 36 | Township |
| Lindahl | 32 | 50 | 43 | 4.17% | 1 | 36 | Township |
| View | 33 | 47 | 40 | 6.82% | 1 | 36 | Township |
| Wheelock | 34 | 47 | 44 | 2.17% | 1 | 36 | Township |
| Winner | 35 | 44 | 37 | 7.32% | 1 | 36 | Township |
| Hazel | 36 | 41 | 38 | 2.5% | 1 | 35 | Township |
| Springbrook | 37 | 35 | 34 | 0% | 94 | 0 | City |
| Strandahl | 38 | 34 | 30 | 3.03% | 1 | 33 | Township |
| Ellisville | 39 | 32 | 29 | 3.23% | 1 | 36 | Township |
| Farmvale | 40 | 32 | 31 | 3.23% | 1 | 36 | Township |
| Good Luck | 41 | 32 | 31 | 3.23% | 1 | 36 | Township |
| Oliver | 42 | 32 | 31 | 3.23% | 1 | 36 | Township |
| Big Stone | 43 | 28 | 29 | 0% | 1 | 36 | Township |
| South Meadow | 44 | 28 | 26 | 3.7% | 1 | 36 | Township |
| Blue Ridge | 45 | 26 | 21 | 8.33% | 1 | 34 | Township |
| Big Meadow | 46 | 25 | 23 | 4.17% | 1 | 35 | Township |
| Bonetraill | 47 | 24 | 22 | 4.35% | 1 | 36 | Township |
| Brooklyn | 48 | 24 | 20 | 4.35% | 1 | 36 | Township |
| Barr Butte | 49 | 23 | 21 | 4.55% | 1 | 36 | Township |
| East Fork | 50 | 23 | 21 | 4.55% | 1 | 36 | Township |
| Grenora | 51 | 23 | 21 | 4.55% | 1 | 31 | Township |
| Orthell | 52 | 23 | 21 | 4.55% | 1 | 36 | Township |
| Rainbow | 53 | 19 | 18 | 0% | 1 | 36 | Township |
| Champion | 54 | 17 | 15 | 6.25% | 0.00 | 36 | Township |
| Bull Butte | 55 | 15 | 13 | 7.14% | 0.00 | 51 | Township |
| Dublin | 56 | 12 | 10 | 9.09% | 0.00 | 36 | Township |
| Climax | 57 | 11 | 10 | 0% | 0.00 | 33 | Township |
| Rock Island | 58 | 4 | 4 | 0% | 0.00 | 34 | Township |
Williston is the largest city in Williams County, with a population of 28,572.
Rock Island is the smallest city in Williams County, with a population of 4.
There are 58 cities in Williams County, North Dakota.