32 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| New England | 1 | 692 | 691 | 0% | 1,404 | 0 | City |
| Mott | 2 | 628 | 652 | -0.79% | 683 | 1 | City |
| Regent | 3 | 162 | 170 | -1.22% | 289 | 1 | City |
| New England | 4 | 83 | 85 | 0% | 2 | 36 | Township |
| Mott | 5 | 76 | 78 | 0% | 2 | 35 | Township |
| Castle Rock | 6 | 72 | 73 | 0% | 2 | 36 | Township |
| Kunze | 7 | 59 | 60 | 0% | 2 | 36 | Township |
| Tepee Butte | 8 | 48 | 49 | 0% | 1 | 36 | Township |
| Madison | 9 | 44 | 45 | 0% | 1 | 36 | Township |
| Campbell | 10 | 39 | 40 | 0% | 1 | 35 | Township |
| Kennedy | 11 | 33 | 34 | 0% | 1 | 36 | Township |
| Strehlow | 12 | 33 | 34 | 0% | 1 | 36 | Township |
| Black Butte | 13 | 30 | 31 | 0% | 1 | 36 | Township |
| St. Croix | 14 | 29 | 30 | 0% | 1 | 37 | Township |
| Clark | 15 | 28 | 29 | 0% | 1 | 36 | Township |
| Steiner | 16 | 28 | 29 | 0% | 1 | 35 | Township |
| Rifle | 17 | 26 | 27 | 0% | 1 | 36 | Township |
| Baer | 18 | 24 | 25 | 0% | 1 | 32 | Township |
| Beery | 19 | 22 | 23 | 0% | 1 | 35 | Township |
| Havelock | 20 | 20 | 21 | 0% | 1 | 36 | Township |
| Acme | 21 | 18 | 19 | 0% | 0.00 | 36 | Township |
| Chilton | 22 | 18 | 19 | 0% | 0.00 | 36 | Township |
| Farina | 23 | 18 | 19 | 0% | 0.00 | 36 | Township |
| Wagendorf | 24 | 17 | 18 | 0% | 0.00 | 36 | Township |
| Walker | 25 | 16 | 15 | 6.67% | 0.00 | 36 | Township |
| Kern | 26 | 14 | 15 | 0% | 0.00 | 32 | Township |
| Solon | 27 | 14 | 14 | 0% | 0.00 | 36 | Township |
| Highland | 28 | 13 | 13 | 0% | 0.00 | 34 | Township |
| Brittian | 29 | 12 | 12 | 0% | 0.00 | 36 | Township |
| Odessa | 30 | 12 | 12 | 0% | 0.00 | 36 | Township |
| Merrill | 31 | 6 | 6 | 0% | 0.00 | 32 | Township |
| Ashby | 32 | 4 | 4 | 0% | 0.00 | 32 | Township |
New England is the largest city in Hettinger County, with a population of 692.
Ashby is the smallest city in Hettinger County, with a population of 4.
There are 32 cities in Hettinger County, North Dakota.