
Willow Hill township
- County:
- Jasper County
- County Seat:
- No
- Area (mi²):
- 34.139
- State:
- Illinois
Willow Hill township is located in Jasper County, Illinois. Willow Hill township has a 2025 population of 509. Willow Hill township is currently declining at a rate of -0.39% annually and its population has decreased by -1.74% since the most recent census, which recorded a population of 518 in 2020.
The average household income in Willow Hill township is $77,440 with a poverty rate of 27.31%. The median age in Willow Hill township is 32.3 years: 31.4 years for males, and 32.6 years for females.