6 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Superior | 1 | 26,532 | 26,795 | -0.17% | 724 | 37 | City |
| Lake Nebagamon | 2 | 1,140 | 1,128 | 0.18% | 91 | 13 | Village |
| Solon Springs | 3 | 685 | 666 | 0.44% | 437 | 2 | Village |
| Superior | 4 | 663 | 677 | -0.3% | 534 | 1 | Village |
| Poplar | 5 | 634 | 633 | 0% | 53 | 12 | Village |
| Oliver | 6 | 417 | 416 | 0% | 201 | 2 | Village |
Superior is the largest city in Douglas County, with a population of 26,532.
Oliver is the smallest city in Douglas County, with a population of 417.
There are 6 cities in Douglas County, Wisconsin.