
Nelson
- County:
- Lee County
- County Seat:
- No
- Area (mi²):
- 0.357
- State:
- Illinois
Nelson is a village located in Lee County, Illinois. Nelson has a 2025 population of 122. Nelson is currently declining at a rate of -0.81% annually and its population has decreased by -3.17% since the most recent census, which recorded a population of 126 in 2020.
The average household income in Nelson is $55,975 with a poverty rate of 21.93%. The median age in Nelson is 54 years: 60.8 years for males, and 51.5 years for females.