South Williamsport is a borough located in Lycoming County, Pennsylvania. South Williamsport has a 2025 population of 6,157 . South Williamsport is currently declining at a rate of -0.31% annually and its population has decreased by -1.5% since the most recent census, which recorded a population of 6,251 in 2020.
The average household income in South Williamsport is $95,010 with a poverty rate of 9.52%. The median age in South Williamsport is 42.4 years: 39.1 years for males, and 43 years for females. For every 100 females there are 102.7 males.
Data after 2023 is projected based on recent change
The racial composition of South Williamsport includes 91.96% White, and smaller percentages for Black or African American, Two or more races, Asian, Native American and multiracial populations.
White (91.96%)
Black or African American (2.72%)
Two or more races (2.61%)
Asian (2.33%)
Native American (0.39%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 5,716 | 91.96% |
| Black or African American | 169 | 2.72% |
| Two or more races | 162 | 2.61% |
| Asian | 145 | 2.33% |
| Native American | 24 | 0.39% |
Married
Widowed
Divorced
Separated
Never Married
South Williamsport's average per capita income is $47,784. Household income levels show a median of $66,810. The poverty rate stands at 9.52%.
Name | Median | Mean |
|---|---|---|
| Married Families | $110,968 | - |
| Families | $100,997 | $119,655 |
| Households | $66,810 | $95,010 |
| Non Families | $34,392 | $51,333 |
Average Income
Median Household Income
Poverty Rate