8 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Monroe | 1 | 10,305 | 10,639 | -0.65% | 1,842 | 5.59 | City |
| Brodhead | 2 | 3,180 | 3,259 | -0.5% | 1,772 | 1.79 | City |
| New Glarus | 3 | 2,172 | 2,262 | -0.82% | 1,203 | 1.80 | Village |
| Brooklyn | 4 | 1,526 | 1,533 | -0.07% | 1,365 | 1.12 | Village |
| Monticello | 5 | 1,166 | 1,188 | -0.34% | 978 | 1.19 | Village |
| Albany | 6 | 1,060 | 1,094 | -0.66% | 835 | 1.27 | Village |
| Juda | 7 | 377 | 322 | 0.27% | 1,478 | 0.26 | CDP |
| Browntown | 8 | 235 | 242 | -0.42% | 223 | 1.05 | Village |
Monroe is the largest city in Green County, with a population of 10,305.
Browntown is the smallest city in Green County.
There are 8 cities in Green County, Wisconsin.