
Deforest
- County:
- Columbia County
- County Seat:
- No
- Area (mi²):
- 8.684
- State:
- Wisconsin
DeForest is a village located in Columbia County, Wisconsin. DeForest has a 2025 population of 11,279. DeForest is currently growing at a rate of 0.77% annually and its population has increased by 3.97% since the most recent census, which recorded a population of 10,848 in 2020.
The average household income in DeForest is $125,222 with a poverty rate of 7.02%. The median age in DeForest is 38.8 years: 38 years for males, and 38.9 years for females.