4 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Richland Center | 1 | 5,016 | 5,193 | -0.71% | 1,069 | 5 | City |
| Lone Rock | 2 | 837 | 837 | 0% | 841 | 1 | Village |
| Viola | 3 | 756 | 674 | 2.16% | 759 | 1 | Village |
| Cazenovia | 4 | 351 | 361 | -0.57% | 384 | 1 | Village |
Richland Center is the largest city in Richland County, with a population of 5,016.
Cazenovia is the smallest city in Richland County, with a population of 351.
There are 4 cities in Richland County, Wisconsin.