Waynesville
- County:
- De Witt County
- County Seat:
- No
- Area (mi²):
- 0.319
- State:
- Illinois
Waynesville is a village located in De Witt County, Illinois. Waynesville has a 2026 population of 376. Waynesville is currently declining at a rate of -0.27% annually and its population has decreased by -0.79% since the most recent census, which recorded a population of 379 in 2020.
The median household income in Waynesville is $60,000 with a poverty rate of 12.87%. The median age in Waynesville is 56.4 years: 56.1 years for males, and 56.5 years for females. For every 100 females there are 110.7 males.