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 2026 population of 768. Madison township is currently declining at a rate of -0.65% annually and its population has decreased by -2.04% since the most recent census, which recorded a population of 784 in 2020.
The median household income in Madison township is $78,482 with a poverty rate of 8.21%. The median age in Madison township is 43 years: 32.8 years for males, and 48.1 years for females. For every 100 females there are 92.4 males.