
Logan township
- County:
- Franklin County
- County Seat:
- No
- Area (mi²):
- 36.573
- State:
- Illinois
Logan township is located in Franklin County, Illinois. Logan township has a 2025 population of 3,169. Logan township is currently declining at a rate of -0.19% annually and its population has decreased by -2.25% since the most recent census, which recorded a population of 3,242 in 2020.
The average household income in Logan township is $88,939 with a poverty rate of 8.66%. The median age in Logan township is 54.5 years: 57.8 years for males, and 54.3 years for females.