
Nelsonville
- County:
- Portage County
- County Seat:
- No
- Area (mi²):
- 1.029
- State:
- Wisconsin
Nelsonville is a village located in Portage County, Wisconsin. Nelsonville has a 2025 population of 156. Nelsonville is currently declining at a rate of -0.64% annually and its population has decreased by -3.11% since the most recent census, which recorded a population of 161 in 2020.
The average household income in Nelsonville is $84,762 with a poverty rate of 4.57%. The median age in Nelsonville is 38.5 years: 37 years for males, and 38.5 years for females.