
Washington township
- County:
- Warren County
- County Seat:
- No
- Area (mi²):
- 33.895
- State:
- Ohio
Washington township is located in Warren County, Ohio. Washington township has a 2025 population of 2,984. Washington township is currently growing at a rate of 1.32% annually and its population has increased by 7.84% since the most recent census, which recorded a population of 2,767 in 2020.
The average household income in Washington township is $133,824 with a poverty rate of 2.77%. The median age in Washington township is 45.1 years: 44.3 years for males, and 45.7 years for females.