25 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Madison | 1 | 290,508 | 274,884 | 0.9% | 3,450 | 84 | City |
| Sun Prairie | 2 | 40,875 | 36,008 | 2.02% | 3,122 | 13 | City |
| Fitchburg | 3 | 35,885 | 31,300 | 2.18% | 1,019 | 35 | City |
| Middleton | 4 | 22,835 | 22,028 | 0.59% | 2,429 | 9 | City |
| Verona | 5 | 18,247 | 13,981 | 4.05% | 2,205 | 8 | City |
| Waunakee | 6 | 17,085 | 14,918 | 2.16% | 2,329 | 7 | Village |
| Stoughton | 7 | 13,119 | 13,163 | -0.05% | 2,145 | 6 | City |
| Oregon | 8 | 12,222 | 11,240 | 1.36% | 2,699 | 5 | Village |
| Windsor | 9 | 10,612 | 8,791 | 2.95% | 386 | 28 | Village |
| Cottage Grove | 10 | 9,768 | 7,386 | 4.24% | 2,083 | 5 | Village |
| McFarland | 11 | 9,307 | 9,057 | 0.45% | 1,917 | 5 | Village |
| Monona | 12 | 8,590 | 8,667 | -0.15% | 2,636 | 3 | City |
| Mount Horeb | 13 | 7,827 | 7,755 | 0.15% | 2,414 | 3 | Village |
| Cross Plains | 14 | 4,220 | 4,099 | 0.48% | 2,243 | 2 | Village |
| Marshall | 15 | 3,732 | 3,794 | -0.27% | 1,741 | 2 | Village |
| Deerfield | 16 | 2,715 | 2,510 | 1.27% | 1,253 | 2 | Village |
| Belleville | 17 | 2,701 | 2,503 | 1.24% | 1,700 | 2 | Village |
| Shorewood Hills | 18 | 2,138 | 2,269 | -1.02% | 2,663 | 1 | Village |
| Mazomanie | 19 | 1,769 | 1,769 | 0% | 1,000 | 2 | Village |
| Cambridge | 20 | 1,715 | 1,642 | 0.7% | 1,165 | 1 | Village |
| Black Earth | 21 | 1,519 | 1,494 | 0.26% | 1,800 | 1 | Village |
| Maple Bluff | 22 | 1,299 | 1,382 | -1.07% | 1,853 | 1 | Village |
| Dane | 23 | 1,108 | 1,116 | -0.09% | 936 | 1 | Village |
| Blue Mounds | 24 | 904 | 945 | -0.77% | 1,026 | 1 | Village |
| Rockdale | 25 | 201 | 210 | -0.5% | 715 | 0 | Village |
Madison is the largest city in Dane County, with a population of 290,508.
Rockdale is the smallest city in Dane County, with a population of 201.
There are 25 cities in Dane County, Wisconsin.