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.
Data after 2023 is projected based on recent change
Overall: 53.1 years
Female: 59.3 years
Male: 44.4 years
There are 125 adults, (40 of whom are seniors) in Chestnut township.
Female: 80 (48.2%)
Male: 86 (51.8%)
The racial composition of Chestnut township includes 87.35% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 145 | 87.35% |
| Two or more races | 21 | 12.65% |