South Williamsport borough, Pennsylvania
Official LSAD Designation: South Williamsport borough • Census GEOID: 4272648
• Lycoming County
Demographics & Population Profile
Population and demographics for South Williamsport borough.
| Demographic Variable | Estimate / Count | Margin of Error | Period | Source |
|---|---|---|---|---|
| Total Population (2025 PEP Estimate) | 6,124 | — | 2025 | Census |
| Median Age | 43 yrs | ±3.9 | 2020-2024 | Census ACS 5-Year 2024 |
| Total Households | 2,665 | ±168 | 2020-2024 | Census ACS 5-Year 2024 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).