
Forest City
- County:
- Mason County
- County Seat:
- No
- Area (mi²):
- 0.523
- State:
- Illinois
Forest City is a village located in Mason County, Illinois. Forest City has a 2025 population of 203. Forest City is currently declining at a rate of -1.46% annually and its population has decreased by -6.45% since the most recent census, which recorded a population of 217 in 2020.
The average household income in Forest City is $68,266 with a poverty rate of 28.44%. The median age in Forest City is 38.6 years: 49.3 years for males, and 36.5 years for females.