
Douglas township
- County:
- Iroquois County
- County Seat:
- No
- Area (mi²):
- 44.655
- State:
- Illinois
Douglas township is located in Iroquois County, Illinois. Douglas township has a 2025 population of 1,916. Douglas township is currently declining at a rate of -1.39% annually and its population has decreased by -6.08% since the most recent census, which recorded a population of 2,040 in 2020.
The average household income in Douglas township is $81,915 with a poverty rate of 6.74%. The median age in Douglas township is 43.6 years: 45.2 years for males, and 41 years for females.