14 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Superior | 1 | 26,576 | 26,748 | -0.17% | 726 | 37 | City |
| Superior | 2 | 26,576 | 26,795 | -0.17% | 726 | 37 | City |
| Lake Nebagamon | 3 | 1,138 | 1,127 | 0.18% | 91 | 13 | Village |
| Lake Nebagamon | 4 | 1,138 | 1,128 | 0.18% | 91 | 13 | Village |
| Solon Springs | 5 | 682 | 665 | 0.44% | 436 | 2 | Village |
| Solon Springs | 6 | 682 | 666 | 0.44% | 436 | 2 | Village |
| Superior | 7 | 665 | 678 | -0.45% | 535 | 1 | Village |
| Superior | 8 | 665 | 677 | -0.45% | 535 | 1 | Village |
| Poplar | 9 | 634 | 631 | 0% | 53 | 12 | Village |
| Poplar | 10 | 634 | 633 | 0% | 53 | 12 | Village |
| Oliver | 11 | 417 | 416 | 0% | 201 | 2 | Village |
| Oliver | 12 | 417 | 416 | 0% | 201 | 2 | Village |
| Brule | 13 | 186 | 201 | -2.62% | 70 | 3 | CDP |
| Gordon | 14 | 77 | 106 | -8.33% | 42 | 2 | CDP |
Superior is the largest city in Douglas County, with a population of 26,576.
Gordon is the smallest city in Douglas County, with a population of 77.
There are 14 cities in Douglas County, Wisconsin.