Johnsonville
- County:
- Wayne County
- County Seat:
- No
- Area (mi²):
- 0.213
- State:
- Illinois
Johnsonville is a village located in Wayne County, Illinois. Johnsonville has a 2026 population of 71. Johnsonville is currently growing at a rate of 1.43% annually but its population has decreased by -1.39% since the most recent census, which recorded a population of 72 in 2020.
The median household income in Johnsonville is $55,313 with a poverty rate of 48.61%. The median age in Johnsonville is 27.7 years: 27.4 years for males, and 34.5 years for females. For every 100 females there are 157.1 males.