
Washington township
- County:
- Brown County
- County Seat:
- No
- Area (mi²):
- 22.636
- State:
- Ohio
Washington township is located in Brown County, Ohio. Washington township has a 2025 population of 2,266. Washington township is currently growing at a rate of 0.31% annually and its population has increased by 1.12% since the most recent census, which recorded a population of 2,241 in 2020.
The average household income in Washington township is $59,724 with a poverty rate of 26.31%. The median age in Washington township is 37.7 years: 39.9 years for males, and 34.5 years for females.