Afton township
- County:
- DeKalb County
- County Seat:
- No
- Area (mi²):
- 35.108
- State:
- Illinois
Afton township is located in DeKalb County, Illinois. Afton township has a 2026 population of 904. Afton township is currently growing at a rate of 0.33% annually but its population has decreased by -0.11% since the most recent census, which recorded a population of 905 in 2020.
The median household income in Afton township is $107,675 with a poverty rate of 9.28%. The median age in Afton township is 41.7 years: 36.9 years for males, and 45.1 years for females. For every 100 females there are 68.1 males.