Washington township
- County:
- Lawrence County
- County Seat:
- No
- Area (mi²):
- 24.192
- State:
- Ohio
Washington township is located in Lawrence County, Ohio. Washington township has a 2026 population of 173. Washington township is currently declining at a rate of -0.57% annually and its population has decreased by -3.35% since the most recent census, which recorded a population of 179 in 2020.
The median age in Washington township is 60.1 years: 67.1 years for males, and 56.4 years for females. For every 100 females there are 139.4 males.