10 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Richland Center | 1 | 5,016 | 5,204 | -0.71% | 1,069 | 5 | City |
| Richland Center | 2 | 5,016 | 5,193 | -0.71% | 1,069 | 5 | City |
| Lone Rock | 3 | 837 | 839 | 0% | 841 | 1 | Village |
| Lone Rock | 4 | 837 | 837 | 0% | 841 | 1 | Village |
| Viola | 5 | 756 | 676 | 2.16% | 759 | 1 | Village |
| Viola | 6 | 756 | 674 | 2.16% | 759 | 1 | Village |
| Sextonville | 7 | 359 | 414 | -3.23% | 399 | 1 | CDP |
| Cazenovia | 8 | 351 | 362 | -0.57% | 384 | 1 | Village |
| Cazenovia | 9 | 351 | 361 | -0.57% | 384 | 1 | Village |
| Gotham | 10 | 171 | 213 | -0.58% | 430 | 0 | CDP |
Richland Center is the largest city in Richland County, with a population of 5,016.
Gotham is the smallest city in Richland County, with a population of 171.
There are 10 cities in Richland County, Wisconsin.