32 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| New England | 1 | 666 | 691 | -0.75% | 1,351 | 0.49 | City |
| Mott | 2 | 628 | 650 | -0.63% | 683 | 0.92 | City |
| Regent | 3 | 162 | 171 | -1.22% | 289 | 0.56 | City |
| New England township | 4 | 79 | 80 | 0% | 2 | 35.60 | Township |
| Mott township | 5 | 77 | 78 | 0% | 2 | 35.17 | Township |
| Castle Rock township | 6 | 72 | 73 | 0% | 2 | 35.94 | Township |
| Kunze township | 7 | 59 | 60 | 0% | 2 | 36.32 | Township |
| Tepee Butte township | 8 | 49 | 49 | 0% | 1 | 35.80 | Township |
| Madison township | 9 | 45 | 45 | 0% | 1 | 36.32 | Township |
| Campbell township | 10 | 38 | 39 | 0% | 1 | 35.12 | Township |
| Kennedy township | 11 | 32 | 33 | 0% | 1 | 36.05 | Township |
| Strehlow township | 12 | 32 | 33 | 0% | 1 | 35.88 | Township |
| Black Butte township | 13 | 29 | 30 | 0% | 1 | 35.80 | Township |
| Steiner township | 14 | 29 | 30 | 0% | 1 | 35.03 | Township |
| Clark township | 15 | 28 | 29 | 0% | 1 | 35.52 | Township |
| Rifle township | 16 | 28 | 29 | 0% | 1 | 35.54 | Township |
| St. Croix township | 17 | 28 | 29 | 0% | 1 | 36.66 | Township |
| Baer township | 18 | 24 | 25 | 0% | 1 | 32.30 | Township |
| Havelock township | 19 | 22 | 23 | 0% | 1 | 35.56 | Township |
| Acme township | 20 | 21 | 19 | 5% | 1 | 36.01 | Township |
| Chilton township | 21 | 21 | 19 | 5% | 1 | 36.20 | Township |
| Beery township | 22 | 20 | 21 | 0% | 1 | 35.25 | Township |
| Farina township | 23 | 19 | 20 | 0% | 1 | 36.27 | Township |
| Wagendorf township | 24 | 18 | 19 | 0% | 1 | 35.95 | Township |
| Kern township | 25 | 15 | 15 | 0% | 0.00 | 32.36 | Township |
| Highland township | 26 | 14 | 14 | 0% | 0.00 | 34.37 | Township |
| Solon township | 27 | 14 | 14 | 0% | 0.00 | 35.91 | Township |
| Walker township | 28 | 14 | 14 | 0% | 0.00 | 36.07 | Township |
| Brittian township | 29 | 12 | 12 | 0% | 0.00 | 35.70 | Township |
| Odessa township | 30 | 11 | 11 | 0% | 0.00 | 35.77 | Township |
| Merrill township | 31 | 8 | 8 | 0% | 0.00 | 32.04 | Township |
| Ashby township | 32 | 5 | 5 | 0% | 0.00 | 32.20 | Township |
New England is the largest city in Hettinger County, with a population of 666.
Ashby township is the smallest city in Hettinger County.
There are 32 cities in Hettinger County, North Dakota.