57 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| New Town | 1 | 2,694 | 2,771 | -0.55% | 933 | 2.89 | City |
| Stanley | 2 | 2,075 | 2,347 | -2.54% | 460 | 4.51 | City |
| Stanley township | 3 | 870 | 818 | 1.28% | 38 | 22.80 | Township |
| Parshall | 4 | 866 | 946 | -1.81% | 244 | 3.55 | City |
| Osborn township | 5 | 336 | 344 | 0.9% | 12 | 28.69 | Township |
| Van Hook township | 6 | 218 | 222 | 0.93% | 7 | 32.88 | Township |
| Plaza | 7 | 198 | 212 | -1.49% | 183 | 1.08 | City |
| Idaho township | 8 | 182 | 186 | 1.11% | 6 | 30.91 | Township |
| Palermo | 9 | 119 | 126 | -0.83% | 53 | 2.25 | City |
| Sikes township | 10 | 99 | 100 | 1.02% | 3 | 35.51 | Township |
| Purcell township | 11 | 90 | 94 | 0% | 3 | 35.50 | Township |
| White Earth | 12 | 89 | 99 | -2.2% | 59 | 1.50 | City |
| Ross | 13 | 88 | 93 | -1.12% | 306 | 0.29 | City |
| Ross township | 14 | 87 | 89 | 1.16% | 2 | 35.61 | Township |
| Foxholm | 15 | 79 | 22 | 6.76% | 82 | 0.96 | CDP |
| White Earth township | 16 | 76 | 77 | 1.33% | 2 | 34.34 | Township |
| Bicker township | 17 | 74 | 77 | 0% | 2 | 35.80 | Township |
| Crane Creek township | 18 | 72 | 73 | 1.41% | 2 | 35.72 | Township |
| James Hill township | 19 | 71 | 74 | 0% | 2 | 31.81 | Township |
| Alger township | 20 | 70 | 66 | 4.48% | 2 | 35.39 | Township |
| Parshall township | 21 | 66 | 69 | 0% | 2 | 34.14 | Township |
| Manitou township | 22 | 62 | 60 | 3.33% | 2 | 36.23 | Township |
| Myrtle township | 23 | 59 | 57 | 3.51% | 2 | 36.41 | Township |
| Spring Coulee township | 24 | 58 | 60 | 0% | 2 | 35.16 | Township |
| Burke township | 25 | 56 | 51 | 5.66% | 2 | 35.54 | Township |
| Fertile township | 26 | 53 | 55 | 0% | 1 | 35.81 | Township |
| Knife River township | 27 | 53 | 51 | 3.92% | 1 | 35.69 | Township |
| Egan township | 28 | 50 | 47 | 4.17% | 1 | 34 | Township |
| Cottonwood township | 29 | 46 | 43 | 4.55% | 1 | 33.67 | Township |
| Debing township | 30 | 46 | 48 | 0% | 1 | 35.63 | Township |
| Liberty township | 31 | 46 | 44 | 2.22% | 3 | 13.46 | Township |
| McGahan township | 32 | 46 | 50 | 0% | 1 | 34.59 | Township |
| McAlmond township | 33 | 45 | 48 | 0% | 1 | 35.02 | Township |
| Banner township | 34 | 42 | 45 | 0% | 1 | 35.79 | Township |
| Lostwood township | 35 | 38 | 41 | 0% | 1 | 34.28 | Township |
| Plaza township | 36 | 38 | 39 | 0% | 1 | 36.20 | Township |
| Osloe township | 37 | 37 | 38 | 0% | 1 | 35.07 | Township |
| Howie township | 38 | 35 | 35 | 2.94% | 1 | 26.89 | Township |
| Model township | 39 | 35 | 38 | 0% | 1 | 35.23 | Township |
| Palermo township | 40 | 35 | 38 | 0% | 1 | 33 | Township |
| Rat Lake township | 41 | 35 | 38 | 0% | 1 | 35.73 | Township |
| Powers township | 42 | 34 | 33 | 3.03% | 1 | 34.40 | Township |
| Sorkness township | 43 | 34 | 35 | 0% | 1 | 35.63 | Township |
| Shell township | 44 | 33 | 33 | 0% | 1 | 35.96 | Township |
| Big Bend township | 45 | 32 | 34 | 0% | 1 | 31.42 | Township |
| Clearwater township | 46 | 32 | 27 | 6.67% | 1 | 35.48 | Township |
| Oakland township | 47 | 30 | 31 | 0% | 1 | 35.17 | Township |
| Lowland township | 48 | 28 | 29 | 0% | 1 | 34.36 | Township |
| Wayzetta township | 49 | 27 | 29 | 0% | 1 | 35.90 | Township |
| Mountrail township | 50 | 26 | 28 | 0% | 1 | 35.82 | Township |
| Brookbank township | 51 | 24 | 26 | 0% | 1 | 35.91 | Township |
| Stave township | 52 | 24 | 26 | 0% | 1 | 33.29 | Township |
| Kickapoo township | 53 | 22 | 21 | 4.76% | 1 | 33.42 | Township |
| Redmond township | 54 | 17 | 18 | 0% | 1 | 33.53 | Township |
| Austin township | 55 | 16 | 17 | 0% | 0.00 | 35.67 | Township |
| Crowfoot township | 56 | 14 | 15 | 0% | 0.00 | 34.69 | Township |
| Sidonia township | 57 | 12 | 13 | 0% | 0.00 | 34.60 | Township |
New Town is the largest city in Mountrail County, with a population of 2,694.
Sidonia township is the smallest city in Mountrail County.
There are 57 cities in Mountrail County, North Dakota.