56 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| New Town | 1 | 2,726 | 2,769 | -0.33% | 944 | 3 | City |
| Stanley | 2 | 2,176 | 2,366 | -1.72% | 483 | 5 | City |
| Parshall | 3 | 898 | 947 | -1.1% | 253 | 4 | City |
| Stanley | 4 | 878 | 819 | 1.27% | 39 | 23 | Township |
| Osborn | 5 | 337 | 344 | 1.2% | 12 | 29 | Township |
| Van Hook | 6 | 217 | 223 | 0.93% | 7 | 33 | Township |
| Plaza | 7 | 204 | 211 | -0.97% | 189 | 1 | City |
| Idaho | 8 | 163 | 169 | 0% | 5 | 31 | Township |
| Palermo | 9 | 121 | 125 | -0.82% | 54 | 2 | City |
| Sikes | 10 | 97 | 101 | 0% | 3 | 36 | Township |
| White Earth | 11 | 92 | 100 | -2.13% | 61 | 1 | City |
| Purcell | 12 | 91 | 94 | 0% | 3 | 35 | Township |
| Ross | 13 | 87 | 91 | -1.14% | 302 | 0 | City |
| Ross | 14 | 83 | 86 | 0% | 2 | 36 | Township |
| Bicker | 15 | 75 | 77 | 0% | 2 | 36 | Township |
| White Earth | 16 | 74 | 77 | 0% | 2 | 34 | Township |
| James Hill | 17 | 73 | 76 | 0% | 2 | 32 | Township |
| Crane Creek | 18 | 71 | 71 | 1.43% | 2 | 36 | Township |
| Parshall | 19 | 70 | 71 | 1.45% | 2 | 34 | Township |
| Alger | 20 | 67 | 69 | 0% | 2 | 35 | Township |
| Myrtle | 21 | 58 | 58 | 1.75% | 2 | 36 | Township |
| Spring Coulee | 22 | 58 | 60 | 0% | 2 | 35 | Township |
| Manitou | 23 | 57 | 59 | 0% | 2 | 36 | Township |
| Fertile | 24 | 54 | 56 | 0% | 2 | 36 | Township |
| Burke | 25 | 53 | 54 | 0% | 1 | 36 | Township |
| McGahan | 26 | 53 | 52 | 3.92% | 2 | 35 | Township |
| Knife River | 27 | 51 | 52 | 0% | 1 | 36 | Township |
| McAlmond | 28 | 48 | 47 | 4.35% | 1 | 35 | Township |
| Banner | 29 | 45 | 44 | 4.65% | 1 | 36 | Township |
| Cottonwood | 30 | 45 | 46 | 0% | 1 | 34 | Township |
| Debing | 31 | 45 | 47 | 0% | 1 | 36 | Township |
| Egan | 32 | 45 | 46 | 0% | 1 | 34 | Township |
| Liberty | 33 | 43 | 43 | 0% | 3 | 13 | Township |
| Lostwood | 34 | 42 | 41 | 5% | 1 | 34 | Township |
| Palermo | 35 | 42 | 39 | 7.69% | 1 | 33 | Township |
| Model | 36 | 40 | 38 | 5.26% | 1 | 35 | Township |
| Osloe | 37 | 38 | 38 | 2.7% | 1 | 35 | Township |
| Plaza | 38 | 37 | 38 | 0% | 1 | 36 | Township |
| Rat Lake | 39 | 37 | 38 | 2.78% | 1 | 36 | Township |
| Big Bend | 40 | 36 | 34 | 5.88% | 1 | 31 | Township |
| Howie | 41 | 34 | 36 | 0% | 1 | 27 | Township |
| Powers | 42 | 34 | 32 | 6.25% | 1 | 34 | Township |
| Shell | 43 | 34 | 34 | 0% | 1 | 36 | Township |
| Oakland | 44 | 32 | 32 | 0% | 1 | 35 | Township |
| Sorkness | 45 | 32 | 32 | 0% | 1 | 36 | Township |
| Clearwater | 46 | 28 | 27 | 0% | 1 | 35 | Township |
| Lowland | 47 | 28 | 29 | 0% | 1 | 34 | Township |
| Mountrail | 48 | 27 | 29 | 0% | 1 | 36 | Township |
| Wayzetta | 49 | 27 | 29 | 0% | 1 | 36 | Township |
| Brookbank | 50 | 24 | 26 | 0% | 1 | 36 | Township |
| Stave | 51 | 24 | 26 | 0% | 1 | 33 | Township |
| Kickapoo | 52 | 21 | 22 | 0% | 1 | 33 | Township |
| Crowfoot | 53 | 18 | 19 | 0% | 1 | 35 | Township |
| Redmond | 54 | 18 | 19 | 0% | 1 | 34 | Township |
| Austin | 55 | 15 | 16 | 0% | 0.00 | 36 | Township |
| Sidonia | 56 | 13 | 14 | 0% | 0.00 | 35 | Township |
New Town is the largest city in Mountrail County, with a population of 2,726.
Sidonia is the smallest city in Mountrail County, with a population of 13.
There are 56 cities in Mountrail County, North Dakota.