
Hanna township
- County:
- Henry County
- County Seat:
- No
- Area (mi²):
- 19.167
- State:
- Illinois
Hanna township is located in Henry County, Illinois. Hanna township has a 2025 population of 2,344. Hanna township is currently declining at a rate of -0.3% annually and its population has decreased by -2.05% since the most recent census, which recorded a population of 2,393 in 2020.
The average household income in Hanna township is $139,800 with a poverty rate of 4.38%. The median age in Hanna township is 40.9 years: 38 years for males, and 43.6 years for females.