
Vernon
- County:
- Marion County
- County Seat:
- No
- Area (mi²):
- 0.882
- State:
- Illinois
Vernon is a village located in Marion County, Illinois. Vernon has a 2025 population of 97. Vernon is currently declining at a rate of -1.02% annually and its population has decreased by -3.96% since the most recent census, which recorded a population of 101 in 2020.
The average household income in Vernon is $59,558 with a poverty rate of 26.51%. The median age in Vernon is 50.8 years: 54.2 years for males, and 48.5 years for females.