Bonpas township
- County:
- Richland County
- County Seat:
- No
- Area (mi²):
- 37.503
- State:
- Illinois
Bonpas township is located in Richland County, Illinois. Bonpas township has a 2026 population of 404. Bonpas township is currently declining at a rate of -0.74% annually and its population has decreased by -2.65% since the most recent census, which recorded a population of 415 in 2020.
The median household income in Bonpas township is $88,125 with a poverty rate of 8.19%. The median age in Bonpas township is 32.6 years: 31.8 years for males, and 34.2 years for females. For every 100 females there are 80.6 males.