
Hillsboro township
- County:
- Montgomery County
- County Seat:
- No
- Area (mi²):
- 36.121
- State:
- Illinois
Hillsboro township is located in Montgomery County, Illinois. Hillsboro township has a 2025 population of 6,757. Hillsboro township is currently declining at a rate of -0.63% annually and its population has decreased by -2.68% since the most recent census, which recorded a population of 6,943 in 2020.
The average household income in Hillsboro township is $74,822 with a poverty rate of 14.46%. The median age in Hillsboro township is 42.6 years: 39.6 years for males, and 52.4 years for females.