South Williamsport is located in Pennsylvania. South Williamsport, Pennsylvania has population of 6,216. South Williamsport is more family-centric than the surrounding county with 28% of the households with children.
The median household income in South Williamsport, Pennsylvania is $54,700. The median household income for the surrounding county is $53,521 compared to the national median of $61,963. The median age of people living in South Williamsport is 40.2 years.
The average high temperature in July is 83.2 degrees, with an average low temperature in January of 17.9 degrees. The annual precipitation is 41.59.