Buffalo township
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 20.354
- State:
- Pennsylvania
Buffalo township is located in Washington County, Pennsylvania. Buffalo township has a 2026 population of 1,952. Buffalo township is currently declining at a rate of -0.1% annually and its population has decreased by -1.41% since the most recent census, which recorded a population of 1,980 in 2020.
The median household income in Buffalo township is $93,649 with a poverty rate of 5.85%. The median age in Buffalo township is 41 years: 40 years for males, and 42.5 years for females. For every 100 females there are 123.0 males.