
Watson township
- County:
- Effingham County
- County Seat:
- No
- Area (mi²):
- 35.831
- State:
- Illinois
Watson township is located in Effingham County, Illinois. Watson township has a 2025 population of 3,148. Watson township is currently declining at a rate of -0.13% annually and its population has decreased by -1.84% since the most recent census, which recorded a population of 3,207 in 2020.
The average household income in Watson township is $75,182 with a poverty rate of 8.87%. The median age in Watson township is 41 years: 40.3 years for males, and 45.8 years for females.