
Douglas township
- County:
- Effingham County
- County Seat:
- No
- Area (mi²):
- 33.578
- State:
- Illinois
Douglas township is located in Effingham County, Illinois. Douglas township has a 2025 population of 12,689. Douglas township is currently growing at a rate of 0.4% annually and its population has increased by 0.31% since the most recent census, which recorded a population of 12,650 in 2020.
The average household income in Douglas township is $87,274 with a poverty rate of 13.15%. The median age in Douglas township is 38.5 years: 37.7 years for males, and 39.2 years for females.