Elderon
- County:
- Marathon County
- County Seat:
- No
- Area (mi²):
- 1.124
- State:
- Wisconsin
Elderon is a village located in Marathon County, Wisconsin. Elderon has a 2026 population of 157. Elderon is currently declining at a rate of -1.26% annually and its population has decreased by -3.09% since the most recent census, which recorded a population of 162 in 2020.