Belle Prairie township
- County:
- Livingston County
- County Seat:
- No
- Area (mi²):
- 22.873
- State:
- Illinois
Belle Prairie township is located in Livingston County, Illinois. Belle Prairie township has a 2026 population of 132. Belle Prairie township is currently declining at a rate of 0% annually and its population has decreased by -1.49% since the most recent census, which recorded a population of 134 in 2020.
The median household income in Belle Prairie township is $118,889 with a poverty rate of 0%. The median age in Belle Prairie township is 69.3 years: 72.2 years for males, and 69.1 years for females. For every 100 females there are 147.8 males.