
South Lebanon township
- County:
- Lebanon County
- County Seat:
- No
- Area (mi²):
- 21.682
- State:
- Pennsylvania
South Lebanon township is located in Lebanon County, Pennsylvania. South Lebanon township has a 2025 population of 10,672. South Lebanon township is currently growing at a rate of 0.56% annually and its population has increased by 2.39% since the most recent census, which recorded a population of 10,423 in 2020.
The average household income in South Lebanon township is $103,785 with a poverty rate of 7.86%. The median age in South Lebanon township is 43 years: 42.9 years for males, and 43.1 years for females.