7 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Glendive | 1 | 4,733 | 4,877 | -0.57% | 1,362 | 3 | City |
| Glendive | 2 | 4,733 | 4,866 | -0.57% | 1,362 | 3 | City |
| West Glendive | 3 | 1,903 | 1,635 | -0.16% | 495 | 4 | CDP |
| Richey | 4 | 160 | 165 | -0.62% | 620 | 0 | Town |
| Richey | 5 | 160 | 165 | -0.62% | 620 | 0 | Town |
| Bloomfield | 6 | 11 | 6 | 10% | 186 | 0 | CDP |
| Lindsay | 7 | 10 | 18 | 11.11% | 15 | 1 | CDP |
Glendive is the largest city in Dawson County, with a population of 4,733.
Lindsay is the smallest city in Dawson County, with a population of 10.
There are 7 cities in Dawson County, Montana.