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| City | South New Castle |
| State | Pennsylvania (PA) |
| County | Lawrence |
| Country | United States of America |
| Timezone | Eastern Time (America/New_York) |
| Latitude | 40.977839 |
| Longitude | -80.345064 |
| Population | 712 |
| Density | 426.7 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 16102 |
| Area Code | 215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878 |
| County Seat | New Castle |
| School District | Shenango Area School District |
South New Castle is a locality in Lawrence County, Pennsylvania, United States. It is a small community with a population of 712. The population density is 426.7 people per km². South New Castle is located at 40.9778°N, 80.3451°W. It observes the Eastern Time (America/New_York) timezone. ZIP code: 16102.
South New Castle unfolds across a landscape shaped by the patient work of water and time, where rolling hills, softened by decades of cultivation, give way to the deeper valleys carved by meandering creeks. It lies 16.9 miles east of Boardman, OH (from Boardman, OH: bearing 101°T), and is situated 1.8 miles south of New Castle. The air here carries the scent of damp earth and the distant hum of tractors, a constant reminder of the fertile ground that defines the region. Farms, with their weathered barns and fields stretching towards the horizon like rumpled blankets, punctuate the greenery, and the light at dusk often settles in a golden haze, bathing the undulating terrain in a quiet, almost sacred glow. The very texture of the land speaks of resilience, of seasons of plenty and times of hardship, a story written in the clay and stone beneath the surface. The history of South New Castle is intertwined with the ebb and flow of industry and agriculture, a narrative of hardworking people seeking their fortune and building lives from the land. Once a place where coal seams were tapped and iron forged, its economy has since shifted, finding its footing in the steady rhythms of farming and the specialized crafts of local artisans. The old railroad beds, now reclaimed by wildflowers and tall grasses, hint at a busier past, a time when goods and people moved with more urgency through these quiet hollows. You can still feel the echoes of those days in the sturdy, unpretentious architecture of the few remaining businesses, and in the way the community gathers, a quiet solidarity evident in shared stories and the slow, deliberate pace of everyday life.
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This page provides an embedded street and satellite map of South New Castle, Pennsylvania — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 40.977839, -80.345064. 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 New Castle and Lawrence County.
Detailed location data for South New Castle includes the ZIP code (16102), telephone area code (215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878), county seat of Lawrence County (New Castle), and school district assignment (Shenango 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 New Castle 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. |