Chestnut township
- County:
- Logan County
- County Seat:
- No
- Area (mi²):
- 36.188
- State:
- Illinois
Chestnut township is located in Logan County, Illinois. Chestnut township has a 2026 population of 220. Chestnut township is currently declining at a rate of 0% annually and its population has decreased by -1.79% since the most recent census, which recorded a population of 224 in 2020.
The median age in Chestnut township is 53.1 years: 44.4 years for males, and 59.3 years for females. For every 100 females there are 107.5 males.