6 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Black River Falls | 1 | 3,587 | 3,514 | 0.34% | 846 | 4 | City |
| Merrillan | 2 | 541 | 565 | -0.73% | 427 | 1 | Village |
| Melrose | 3 | 516 | 543 | -0.77% | 644 | 1 | Village |
| Alma Center | 4 | 465 | 486 | -0.64% | 464 | 1 | Village |
| Taylor | 5 | 461 | 482 | -0.65% | 632 | 1 | Village |
| Hixton | 6 | 435 | 455 | -0.68% | 381 | 1 | Village |
Black River Falls is the largest city in Jackson County, with a population of 3,587.
Hixton is the smallest city in Jackson County, with a population of 435.
There are 6 cities in Jackson County, Wisconsin.