South Newton township
- County:
- Cumberland County
- County Seat:
- No
- Area (mi²):
- 11.319
- State:
- Pennsylvania
South Newton township is located in Cumberland County, Pennsylvania. South Newton township has a 2026 population of 1,392. South Newton township is currently growing at a rate of 0.58% annually and its population has increased by 1.53% since the most recent census, which recorded a population of 1,371 in 2020.
The median household income in South Newton township is $78,167 with a poverty rate of 6.81%. The median age in South Newton township is 34.1 years: 33.4 years for males, and 34.4 years for females. For every 100 females there are 104.1 males.