
Union township
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 15.288
- State:
- Pennsylvania
Union township is located in Washington County, Pennsylvania. Union township has a 2025 population of 5,526. Union township is currently growing at a rate of 1.01% annually and its population has increased by 2.64% since the most recent census, which recorded a population of 5,384 in 2020.
The average household income in Union township is $84,891 with a poverty rate of 15.49%. The median age in Union township is 48.8 years: 43.8 years for males, and 53.8 years for females.