
Hardin township
- County:
- Calhoun County
- County Seat:
- No
- Area (mi²):
- 37.382
- State:
- Illinois
Hardin township is located in Calhoun County, Illinois. Hardin township has a 2025 population of 184. Hardin township is currently declining at a rate of -1.6% annually and its population has decreased by -5.15% since the most recent census, which recorded a population of 194 in 2020.
The average household income in Hardin township is $151,203 with a poverty rate of 6.1%. The median age in Hardin township is 54.6 years: 55 years for males, and 53.6 years for females.