Green Hills
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 0.923
- State:
- Pennsylvania
Green Hills is a borough located in Washington County, Pennsylvania. Green Hills has a 2026 population of 19. Green Hills is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 19 in 2020.