
Six Mile township
- County:
- Franklin County
- County Seat:
- No
- Area (mi²):
- 36.137
- State:
- Illinois
Six Mile township is located in Franklin County, Illinois. Six Mile township has a 2025 population of 3,468. Six Mile township is currently declining at a rate of -0.12% annually and its population has decreased by -1.56% since the most recent census, which recorded a population of 3,523 in 2020.
The average household income in Six Mile township is $64,408 with a poverty rate of 12.15%. The median age in Six Mile township is 48.8 years: 49.9 years for males, and 47.6 years for females.