
Washington township
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 39.074
- State:
- Pennsylvania
Washington township is located in Washington County, Pennsylvania. Washington township has a 2025 population of 15,828. Washington township is currently growing at a rate of 1.39% annually and its population has increased by 6.46% since the most recent census, which recorded a population of 14,867 in 2020.
The average household income in Washington township is $96,598 with a poverty rate of 5.35%. The median age in Washington township is 44.6 years: 43.6 years for males, and 46.5 years for females.