48 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Langdon | 1 | 1,813 | 1,897 | -0.93% | 1,172 | 1.55 | City |
| Munich | 2 | 180 | 194 | -1.64% | 126 | 1.43 | City |
| Osnabrock | 3 | 101 | 105 | -0.98% | 337 | 0.30 | City |
| Manilla township | 4 | 89 | 89 | 0% | 2 | 35.77 | Township |
| North Olga township | 5 | 51 | 52 | 0% | 1 | 41.68 | Township |
| Perry township | 6 | 43 | 44 | 0% | 1 | 35.82 | Township |
| Alma township | 7 | 39 | 40 | 0% | 1 | 35.67 | Township |
| Osford township | 8 | 39 | 42 | -2.5% | 1 | 35.80 | Township |
| Milton | 9 | 38 | 42 | -2.56% | 81 | 0.47 | City |
| Fremont township | 10 | 38 | 42 | -2.56% | 1 | 55.41 | Township |
| Langdon township | 11 | 38 | 35 | 0% | 1 | 35.96 | Township |
| Easby township | 12 | 37 | 41 | -2.63% | 1 | 35.83 | Township |
| Nekoma township | 13 | 37 | 38 | 0% | 1 | 35.14 | Township |
| Loam township | 14 | 36 | 40 | -2.7% | 1 | 34.34 | Township |
| South Olga township | 15 | 36 | 40 | -2.7% | 1 | 35.82 | Township |
| Trier township | 16 | 35 | 36 | 0% | 1 | 30.35 | Township |
| Waterloo township | 17 | 35 | 36 | 0% | 1 | 35.34 | Township |
| Cypress township | 18 | 33 | 34 | 0% | 1 | 44.41 | Township |
| Montrose township | 19 | 33 | 34 | 0% | 1 | 35.28 | Township |
| Henderson township | 20 | 32 | 33 | 0% | 1 | 27.91 | Township |
| Alsen | 21 | 31 | 33 | 0% | 1 | 29.36 | City |
| South Dresden township | 22 | 30 | 31 | 0% | 1 | 35.37 | Township |
| Nekoma | 23 | 29 | 31 | 0% | 78 | 0.37 | City |
| Dresden township | 24 | 29 | 30 | 0% | 1 | 43.83 | Township |
| Mount Carmel township | 25 | 29 | 30 | 0% | 1 | 44.38 | Township |
| Huron township | 26 | 28 | 29 | 0% | 1 | 35.68 | Township |
| Hay township | 27 | 27 | 28 | 0% | 1 | 35.86 | Township |
| Bruce township | 28 | 25 | 26 | 0% | 1 | 35.28 | Township |
| Banner township | 29 | 23 | 24 | 0% | 1 | 29.08 | Township |
| Grey township | 30 | 22 | 23 | 0% | 1 | 35.50 | Township |
| Osnabrock township | 31 | 22 | 23 | 0% | 1 | 35.51 | Township |
| Byron township | 32 | 21 | 22 | 0% | 0.00 | 44.45 | Township |
| West Hope township | 33 | 21 | 22 | 0% | 0.00 | 44.38 | Township |
| Linden township | 34 | 20 | 21 | 0% | 0.00 | 42.70 | Township |
| Moscow township | 35 | 18 | 19 | 0% | 1 | 35.07 | Township |
| East Alma township | 36 | 17 | 18 | 0% | 0.00 | 35.95 | Township |
| Glenila township | 37 | 16 | 17 | 0% | 0.00 | 35.73 | Township |
| Sarles | 38 | 15 | 17 | 0% | 57 | 0.26 | City |
| Storlie township | 39 | 14 | 15 | 0% | 1 | 25.10 | Township |
| Calvin | 40 | 12 | 14 | 0% | 55 | 0.22 | City |
| Billings township | 41 | 11 | 11 | 0% | 0.00 | 28.17 | Township |
| Seivert township | 42 | 11 | 11 | 0% | 0.00 | 28.07 | Township |
| Wales | 43 | 9 | 9 | 0% | 37 | 0.24 | City |
| Loma | 44 | 8 | 8 | 0% | 0.00 | 26.46 | City |
| Gordon township | 45 | 8 | 8 | 0% | 0.00 | 26.64 | Township |
| Hannah | 46 | 7 | 7 | 0% | 37 | 0.19 | City |
| North Loma township | 47 | 7 | 7 | 0% | 0.00 | 18.11 | Township |
| Calio | 48 | 5 | 5 | 0% | 1 | 8.17 | City |
Langdon is the largest city in Cavalier County, with a population of 1,813.
Calio is the smallest city in Cavalier County.
There are 48 cities in Cavalier County, North Dakota.