11 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Harrison | 1 | 15,911 | 12,443 | 4.56% | 499 | 31.90 | Village |
| Chilton | 2 | 3,838 | 4,090 | -1.29% | 950 | 4.04 | City |
| Brillion | 3 | 3,427 | 3,272 | 0.91% | 1,109 | 3.09 | City |
| Sherwood | 4 | 3,187 | 3,274 | -0.53% | 921 | 3.46 | Village |
| New Holstein | 5 | 2,894 | 3,188 | -2% | 1,153 | 2.51 | City |
| St. Peter | 6 | 1,334 | 1,362 | -0.74% | 367 | 3.63 | CDP |
| Hilbert | 7 | 1,188 | 1,245 | -0.92% | 806 | 1.47 | Village |
| Forest Junction | 8 | 708 | 681 | 0.85% | 275 | 2.58 | CDP |
| Stockbridge | 9 | 639 | 684 | -1.39% | 195 | 3.28 | Village |
| Brothertown | 10 | 330 | 205 | 7.14% | 275 | 1.20 | CDP |
| Potter | 11 | 219 | 246 | -2.23% | 434 | 0.51 | Village |
Harrison is the largest city in Calumet County, with a population of 15,911.
Potter is the smallest city in Calumet County.
There are 11 cities in Calumet County, Wisconsin.