7 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Lexington | 1 | 10,917 | 10,664 | 0.47% | 2,151 | 5.08 | City |
| Cozad | 2 | 3,900 | 3,982 | -0.41% | 1,491 | 2.62 | City |
| Gothenburg | 3 | 3,398 | 3,478 | -0.47% | 936 | 3.63 | City |
| Overton | 4 | 581 | 605 | -0.85% | 1,076 | 0.54 | Village |
| Sumner | 5 | 238 | 252 | -1.24% | 807 | 0.29 | Village |
| Farnam | 6 | 174 | 179 | -0.57% | 259 | 0.67 | Village |
| Eddyville | 7 | 85 | 85 | 0% | 308 | 0.28 | Village |
Lexington is the largest city in Dawson County, with a population of 10,917.
Eddyville is the smallest city in Dawson County.
There are 7 cities in Dawson County, Nebraska.