
Bennington township
- County:
- Marshall County
- County Seat:
- No
- Area (mi²):
- 35.989
- State:
- Illinois
Bennington township is located in Marshall County, Illinois. Bennington township has a 2025 population of 1,570. Bennington township is currently growing at a rate of 0.06% annually but its population has decreased by -0.32% since the most recent census, which recorded a population of 1,575 in 2020.
The average household income in Bennington township is $84,102 with a poverty rate of 18.42%. The median age in Bennington township is 43.6 years: 43.3 years for males, and 44.4 years for females.