
Madison township
- County:
- Madison County
- County Seat:
- No
- Area (mi²):
- 40.817
- State:
- Illinois
Madison township is located in Madison County, Illinois. Madison township has a 2025 population of 763. Madison township is currently declining at a rate of -0.39% annually and its population has decreased by -2.3% since the most recent census, which recorded a population of 781 in 2020.
The average household income in Madison township is $71,569 with a poverty rate of 6.27%. The median age in Madison township is 31.5 years: 30.9 years for males, and 33 years for females.