Hardin township is located in Calhoun County, Illinois. Hardin township has a 2026 population of 185. Hardin township is currently declining at a rate of -1.07% annually and its population has decreased by -4.64% since the most recent census, which recorded a population of 194 in 2020.
The median age in Hardin township is 54.5 years: 54.6 years for males, and 53.9 years for females. For every 100 females there are 163.5 males.
Data after 2023 is projected based on recent change
Overall: 54.5 years
Female: 53.9 years
Male: 54.6 years
There are 172 adults, (47 of whom are seniors) in Hardin township.
Female: 74 (37.9%)
Male: 121 (62.1%)
The racial composition of Hardin township includes 88.21% White, and smaller percentages for Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 172 | 88.21% |
| Two or more races | 22 | 11.28% |
| Black or African American | 1 | 0.51% |