57 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| New Town | 1 | 2,694 | 2,771 | -0.55% | 933 | 3 | City |
| Stanley | 2 | 2,075 | 2,347 | -2.54% | 460 | 5 | City |
| Stanley | 3 | 870 | 818 | 1.28% | 38 | 23 | Township |
| Parshall | 4 | 866 | 946 | -1.81% | 244 | 4 | City |
| Osborn | 5 | 336 | 344 | 0.9% | 12 | 29 | Township |
| Van Hook | 6 | 218 | 222 | 0.93% | 7 | 33 | Township |
| Plaza | 7 | 198 | 212 | -1.49% | 183 | 1 | City |
| Idaho | 8 | 182 | 186 | 1.11% | 6 | 31 | Township |
| Palermo | 9 | 119 | 126 | -0.83% | 53 | 2 | City |
| Sikes | 10 | 99 | 100 | 1.02% | 3 | 36 | Township |
| Purcell | 11 | 90 | 94 | 0% | 3 | 35 | Township |
| White Earth | 12 | 89 | 99 | -2.2% | 59 | 1 | City |
| Ross | 13 | 88 | 93 | -1.12% | 306 | 0 | City |
| Ross | 14 | 87 | 89 | 1.16% | 2 | 36 | Township |
| Foxholm | 15 | 79 | 22 | 6.76% | 82 | 1 | CDP |
| White Earth | 16 | 76 | 77 | 1.33% | 2 | 34 | Township |
| Bicker | 17 | 74 | 77 | 0% | 2 | 36 | Township |
| Crane Creek | 18 | 72 | 73 | 1.41% | 2 | 36 | Township |
| James Hill | 19 | 71 | 74 | 0% | 2 | 32 | Township |
| Alger | 20 | 70 | 66 | 4.48% | 2 | 35 | Township |
| Parshall | 21 | 66 | 69 | 0% | 2 | 34 | Township |
| Manitou | 22 | 62 | 60 | 3.33% | 2 | 36 | Township |
| Myrtle | 23 | 59 | 57 | 3.51% | 2 | 36 | Township |
| Spring Coulee | 24 | 58 | 60 | 0% | 2 | 35 | Township |
| Burke | 25 | 56 | 51 | 5.66% | 2 | 36 | Township |
| Fertile | 26 | 53 | 55 | 0% | 1 | 36 | Township |
| Knife River | 27 | 53 | 51 | 3.92% | 1 | 36 | Township |
| Egan | 28 | 50 | 47 | 4.17% | 1 | 34 | Township |
| Cottonwood | 29 | 46 | 43 | 4.55% | 1 | 34 | Township |
| Debing | 30 | 46 | 48 | 0% | 1 | 36 | Township |
| Liberty | 31 | 46 | 44 | 2.22% | 3 | 13 | Township |
| McGahan | 32 | 46 | 50 | 0% | 1 | 35 | Township |
| McAlmond | 33 | 45 | 48 | 0% | 1 | 35 | Township |
| Banner | 34 | 42 | 45 | 0% | 1 | 36 | Township |
| Lostwood | 35 | 38 | 41 | 0% | 1 | 34 | Township |
| Plaza | 36 | 38 | 39 | 0% | 1 | 36 | Township |
| Osloe | 37 | 37 | 38 | 0% | 1 | 35 | Township |
| Howie | 38 | 35 | 35 | 2.94% | 1 | 27 | Township |
| Model | 39 | 35 | 38 | 0% | 1 | 35 | Township |
| Palermo | 40 | 35 | 38 | 0% | 1 | 33 | Township |
| Rat Lake | 41 | 35 | 38 | 0% | 1 | 36 | Township |
| Powers | 42 | 34 | 33 | 3.03% | 1 | 34 | Township |
| Sorkness | 43 | 34 | 35 | 0% | 1 | 36 | Township |
| Shell | 44 | 33 | 33 | 0% | 1 | 36 | Township |
| Big Bend | 45 | 32 | 34 | 0% | 1 | 31 | Township |
| Clearwater | 46 | 32 | 27 | 6.67% | 1 | 35 | Township |
| Oakland | 47 | 30 | 31 | 0% | 1 | 35 | Township |
| Lowland | 48 | 28 | 29 | 0% | 1 | 34 | Township |
| Wayzetta | 49 | 27 | 29 | 0% | 1 | 36 | Township |
| Mountrail | 50 | 26 | 28 | 0% | 1 | 36 | Township |
| Brookbank | 51 | 24 | 26 | 0% | 1 | 36 | Township |
| Stave | 52 | 24 | 26 | 0% | 1 | 33 | Township |
| Kickapoo | 53 | 22 | 21 | 4.76% | 1 | 33 | Township |
| Redmond | 54 | 17 | 18 | 0% | 1 | 34 | Township |
| Austin | 55 | 16 | 17 | 0% | 0.00 | 36 | Township |
| Crowfoot | 56 | 14 | 15 | 0% | 0.00 | 35 | Township |
| Sidonia | 57 | 12 | 13 | 0% | 0.00 | 35 | Township |
New Town is the largest city in Mountrail County, with a population of 2,694.
Sidonia is the smallest city in Mountrail County, with a population of 12.
There are 57 cities in Mountrail County, North Dakota.