
Barnhill township
- County:
- Wayne County
- County Seat:
- No
- Area (mi²):
- 33.698
- State:
- Illinois
Barnhill township is located in Wayne County, Illinois. Barnhill township has a 2025 population of 618. Barnhill township is currently declining at a rate of -0.16% annually and its population has decreased by -1.59% since the most recent census, which recorded a population of 628 in 2020.
The average household income in Barnhill township is $65,947 with a poverty rate of 25.59%. The median age in Barnhill township is 39.1 years: 40.5 years for males, and 32.8 years for females.