8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Menomonie | 1 | 16,671 | 16,860 | -0.23% | 1,216 | 14 | City |
| Colfax | 2 | 1,209 | 1,182 | 0.42% | 870 | 1 | Village |
| Elk Mound | 3 | 1,120 | 988 | 2.38% | 492 | 2 | Village |
| Boyceville | 4 | 1,093 | 1,098 | -0.09% | 291 | 4 | Village |
| Knapp | 5 | 490 | 482 | 0.2% | 312 | 2 | Village |
| Wheeler | 6 | 327 | 327 | 0% | 397 | 1 | Village |
| Ridgeland | 7 | 261 | 259 | 0% | 567 | 0 | Village |
| Downing | 8 | 223 | 230 | -0.89% | 75 | 3 | Village |
Menomonie is the largest city in Dunn County, with a population of 16,671.
Downing is the smallest city in Dunn County, with a population of 223.
There are 8 cities in Dunn County, Wisconsin.