
Washington township
- County:
- Tazewell County
- County Seat:
- No
- Area (mi²):
- 35.577
- State:
- Illinois
Washington township is located in Tazewell County, Illinois. Washington township has a 2025 population of 332. Washington township is currently declining at a rate of 0% annually and its population has decreased by -0.6% since the most recent census, which recorded a population of 334 in 2020.
The average household income in Washington township is $86,567 with a poverty rate of 20.42%. The median age in Washington township is 45.4 years: 45.4 years for males, and 45.6 years for females.