
Washington township
- County:
- Hardin County
- County Seat:
- No
- Area (mi²):
- 35.864
- State:
- Ohio
Washington township is located in Hardin County, Ohio. Washington township has a 2025 population of 704. Washington township is currently declining at a rate of -0.28% annually and its population has decreased by -2.49% since the most recent census, which recorded a population of 722 in 2020.
The average household income in Washington township is $98,034 with a poverty rate of 7.2%. The median age in Washington township is 43.2 years: 42.6 years for males, and 43.4 years for females.