
Gastonville
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 2.728
- State:
- Pennsylvania
Gastonville is a CDP located in Washington County, Pennsylvania. Gastonville has a 2025 population of 2,514. Gastonville is currently declining at a rate of -0.79% annually and its population has decreased by -5.35% since the most recent census, which recorded a population of 2,656 in 2020.
The average household income in Gastonville is $93,508 with a poverty rate of 3.55%. The median age in Gastonville is 48.4 years: 44.8 years for males, and 49.2 years for females.