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| City | South Williamsport |
| State | Pennsylvania (PA) |
| County | Lycoming |
| Country | United States of America |
| Timezone | Eastern Time (America/New_York) |
| Latitude | 41.232023 |
| Longitude | -76.999134 |
| Population | 6,211 |
| Density | 1263.9 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 17702 |
| Area Code | 215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878 |
| County Seat | Williamsport |
| School District | South Williamsport Area School District |
South Williamsport is a locality in Lycoming County, Pennsylvania, United States. It has a population of approximately 6,211. The population density is 1263.9 people per km². South Williamsport is located at 41.2320°N, 76.9991°W. It observes the Eastern Time (America/New_York) timezone. ZIP code: 17702.
South Williamsport unfolds along the Susquehanna River, a broad, patient ribbon of water that shapes its northern edge. The land here rises gently from the riverbanks, a welcoming undulation of green that gathers into the low, wooded hills of Lycoming County. Streets are lined with sturdy, modest homes, their porches often catching the soft, late-afternoon sun that filters through the mature maple and oak trees. The air, especially in summer, carries a humid, earthy scent, a blend of river dampness and the sweet perfume of mown grass. It’s a place where the sky seems to lean in a little closer, its vastness tempered by the sheltering embrace of the surrounding terrain, and where the quiet hum of everyday life is a constant, comforting presence. The history of South Williamsport is inextricably tied to the river and the industries that once thrived along its shores. Forged in the shadow of its larger neighbor, Williamsport, it developed its own distinct character, often serving as a working-class hub. The legacy of the lumber era, when this region was a powerhouse of timber production, is still palpable in the sturdy architecture and the ingrained resilience of its people. While heavy industry has largely receded, the spirit of enterprise persists, now seen in the local businesses that dot its main thoroughfares and the steady, dependable pace of its residents. The proximity to the river remains a defining feature, offering quiet spots for reflection and a constant reminder of the powerful natural forces that have shaped this corner of Pennsylvania.
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This page provides an embedded street and satellite map of South Williamsport, Pennsylvania — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 41.232023, -76.999134. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on South Williamsport and Lycoming County.
Detailed location data for South Williamsport includes the ZIP code (17702), telephone area code (215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878), county seat of Lycoming County (Williamsport), and school district assignment (South Williamsport Area School District). These are among the most commonly searched location details for any US city or town.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct South Williamsport is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | July 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. Location verified by proximity — not name matching alone. |