
Nelsonville
- County:
- Athens County
- County Seat:
- No
- Area (mi²):
- 4.678
- State:
- Ohio
Nelsonville is a city located in Athens County, Ohio. Nelsonville has a 2025 population of 4,464. Nelsonville is currently declining at a rate of -0.6% annually and its population has decreased by -2.91% since the most recent census, which recorded a population of 4,598 in 2020.
The average household income in Nelsonville is $52,027 with a poverty rate of 20.7%. The median age in Nelsonville is 29.4 years: 25.7 years for males, and 34.1 years for females.