
South Franklin township
- County:
- Washington County
- County Seat:
- No
- Area (mi²):
- 20.573
- State:
- Pennsylvania
South Franklin township is located in Washington County, Pennsylvania. South Franklin township has a 2025 population of 2,818. South Franklin township is currently declining at a rate of -0.35% annually and its population has decreased by -1.85% since the most recent census, which recorded a population of 2,871 in 2020.
The average household income in South Franklin township is $102,102 with a poverty rate of 2.76%. The median age in South Franklin township is 50.3 years: 51.4 years for males, and 50.2 years for females.