
Long Branch
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 3.19
- State:
- Pennsylvania
Long Branch is a borough located in Washington County, Pennsylvania. Long Branch has a 2025 population of 410. Long Branch is currently declining at a rate of -0.49% annually and its population has decreased by -2.38% since the most recent census, which recorded a population of 420 in 2020.
The average household income in Long Branch is $80,453 with a poverty rate of 15.54%. The median age in Long Branch is 51.3 years: 50.2 years for males, and 55.5 years for females.