Prairie Green township
- County:
- Iroquois County
- County Seat:
- No
- Area (mi²):
- 40.673
- State:
- Illinois
Prairie Green township is located in Iroquois County, Illinois. Prairie Green township has a 2026 population of 160. Prairie Green township is currently declining at a rate of -0.62% annually and its population has decreased by -3.03% since the most recent census, which recorded a population of 165 in 2020.
The median household income in Prairie Green township is $150,714 with a poverty rate of 9.24%. The median age in Prairie Green township is 34.4 years: 34.5 years for males, and 34.2 years for females. For every 100 females there are 95.1 males.