37 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Crosby | 1 | 1,011 | 1,073 | -1.17% | 717 | 1.41 | City |
| Noonan | 2 | 131 | 138 | -0.76% | 449 | 0.29 | City |
| Fillmore | 3 | 92 | 100 | -2.13% | 2 | 40.83 | Township |
| Blooming Prairie | 4 | 49 | 51 | 0% | 1 | 42.23 | Township |
| Coalfield | 5 | 48 | 50 | 0% | 1 | 35.42 | Township |
| Westby | 6 | 43 | 45 | 0% | 1 | 48.22 | Township |
| Blooming Valley | 7 | 42 | 43 | 0% | 1 | 35.56 | Township |
| Hawkeye | 8 | 42 | 43 | 0% | 1 | 35.22 | Township |
| Noonan | 9 | 38 | 39 | 0% | 1 | 33.79 | Township |
| Long Creek | 10 | 36 | 37 | 0% | 1 | 42.61 | Township |
| Sioux Trail | 11 | 35 | 36 | 0% | 1 | 35.65 | Township |
| Troy | 12 | 35 | 36 | 0% | 1 | 34.38 | Township |
| Border | 13 | 34 | 35 | 0% | 1 | 35.24 | Township |
| Daneville | 14 | 33 | 34 | 0% | 1 | 50.59 | Township |
| De Witt | 15 | 29 | 32 | -3.33% | 1 | 41.22 | Township |
| Gooseneck | 16 | 29 | 31 | -3.33% | 1 | 42.43 | Township |
| Fortuna | 17 | 28 | 30 | 0% | 28 | 1 | City |
| Ambrose | 18 | 27 | 30 | -3.57% | 1 | 41.75 | Township |
| Garnet | 19 | 27 | 30 | -3.57% | 1 | 35.45 | Township |
| Stoneview | 20 | 25 | 24 | 0% | 1 | 35.29 | Township |
| Hayland | 21 | 24 | 27 | -4% | 1 | 35.08 | Township |
| Mentor | 22 | 23 | 26 | -4.17% | 1 | 42.73 | Township |
| Frazier | 23 | 22 | 25 | -4.35% | 1 | 35.05 | Township |
| Burg | 24 | 21 | 24 | -4.55% | 1 | 35.63 | Township |
| Palmer | 25 | 20 | 23 | -4.76% | 1 | 35.27 | Township |
| Fertile Valley | 26 | 19 | 22 | -5% | 0.00 | 64.73 | Township |
| Upland | 27 | 19 | 22 | -5% | 1 | 35.11 | Township |
| Frederick | 28 | 18 | 21 | -5.26% | 1 | 35.78 | Township |
| Ambrose | 29 | 17 | 17 | 0% | 17 | 1.01 | City |
| Lincoln Valley | 30 | 17 | 17 | 0% | 0.00 | 35.30 | Township |
| Smoky Butte | 31 | 17 | 17 | 0% | 0.00 | 35.16 | Township |
| Alexandria | 32 | 15 | 15 | 0% | 0.00 | 35.74 | Township |
| Elkhorn | 33 | 15 | 18 | -6.25% | 0.00 | 59.61 | Township |
| Twin Butte | 34 | 12 | 12 | 0% | 0.00 | 34.69 | Township |
| Plumer | 35 | 9 | 9 | 0% | 0.00 | 34.88 | Township |
| Clinton | 36 | 8 | 8 | 0% | 0.00 | 35.44 | Township |
| Writing Rock | 37 | 4 | 4 | 0% | 0.00 | 35.13 | Township |
Crosby is the largest city in Divide County, with a population of 1,011.
Writing Rock is the smallest city in Divide County, with a population of 4.
There are 37 cities in Divide County, North Dakota.