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| City | Thompsonville |
| State | Pennsylvania (PA) |
| County | Washington |
| Country | United States of America |
| Timezone | Eastern Time (America/New_York) |
| Latitude | 40.290903 |
| Longitude | -80.108111 |
| Population | 3,646 |
| Density | 703.0 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 15317 |
| Area Code | 215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878 |
| County Seat | Washington |
| School District | Peters Township School District |
Thompsonville is a locality in Washington County, Pennsylvania, United States. It has a population of approximately 3,646. The population density is 703.0 people per km². Thompsonville is located at 40.2909°N, 80.1081°W. It observes the Eastern Time (America/New_York) timezone. ZIP code: 15317.
Thompsonville rests in a fold of Washington County, where the land rises and falls with a gentle persistence, hinting at the ancient geological forces that shaped it. It lies 4.4 miles south-west of Bethel Park, PA (from Bethel Park, PA: bearing 235°T), and is situated 5.4 miles south-west of Mount Lebanon. The air here carries the clean scent of damp earth and the distant murmur of unseen creeks, a constant reminder of the underlying waterways that feed the verdant slopes. Mature trees, their branches reaching like gnarled fingers towards the sky, cast shifting patterns of shade and sunlight across fields that seem to have been painted in a thousand shades of green. In the early morning, a soft mist often clings to the hollows, lending a quiet, almost ethereal quality to the landscape before the sun burns it away, revealing the solid, dependable contours of the terrain. This corner of Pennsylvania has long been shaped by the earth's bounty, its economy once tethered to the extraction of coal that lay hidden beneath its hills. Though the deep mines are now silent, the legacy of that industry remains, a subtle hum in the collective memory of Thompsonville. The local character is one of quiet resilience, a people who understand the value of hard work and neighborly support, their lives interwoven with the changing seasons and the steady rhythm of agricultural pursuits that still define much of the surrounding countryside. The few remaining businesses in Thompsonville often serve as gathering places, their doors open to the familiar faces of those who call this place home, fostering a sense of enduring community.
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This page provides an embedded street and satellite map of Thompsonville, Pennsylvania — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 40.290903, -80.108111. 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 Thompsonville and Washington County.
Detailed location data for Thompsonville includes the ZIP code (15317), telephone area code (215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878), county seat of Washington County (Washington), and school district assignment (Peters Township 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 Thompsonville 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. |