
McLeansboro
- County:
- Franklin County
- County Seat:
- No
- Area (mi²):
- 2.744
- State:
- Illinois
McLeansboro is a city located in Franklin County, Illinois. McLeansboro has a 2025 population of 2,587. McLeansboro is currently declining at a rate of -0.42% annually and its population has decreased by -2.16% since the most recent census, which recorded a population of 2,644 in 2020.
The average household income in McLeansboro is $57,435 with a poverty rate of 19.68%. The median age in McLeansboro is 41 years: 34.5 years for males, and 46.3 years for females.