Williamstown, Washington County
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| City | Williamstown |
| State | Pennsylvania (PA) |
| County | Washington |
| Country | United States of America |
| Timezone | Eastern Time (America/New_York) |
| Latitude | 39.979241 |
| Longitude | -80.040888 |
| Density | N/A /km² |
| Incorporated | N/A |
| ZIP Code(s) | 18080, 15322, 17098 |
| Area Code | 215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878 |
| County Seat | Washington |
| School District | Williams Valley School District |
Williamstown is a locality in Washington County, Pennsylvania, United States. Williamstown is located at 39.9792°N, 80.0409°W. It observes the Eastern Time (America/New_York) timezone. ZIP code: 17098.
Williamstown rests in a hollow, a deep breath taken by the land before it rises in rolling hills toward the Ohio River. It lies 24.1 miles south of Bethel Park, PA (from Bethel Park, PA: bearing 180°T), and is situated 3.5 miles north-north-east of Jefferson Greene County. The air here, especially after a rain, carries the damp, earthy scent of fertile soil and the faint, sweet perfume of unseen wildflowers clinging to the roadside verges. Fields of corn, their stalks a vibrant green in the summer sun, march in orderly rows up the slopes, punctuated by the darker, more rugged textures of deciduous woodlands that claw at the sky. A quiet creek, its water the color of strong tea, meanders through the valley floor, its gentle murmur a constant counterpoint to the rustle of leaves and the distant drone of an unseen tractor. The houses, many of them weathered wood and practical in design, seem to lean into the landscape, as if seeking shelter from the broad, often dramatic skies that sweep across Washington County. The history of Williamstown is written in the land itself, in the coal seams that once fueled industry and the careful cultivation that now defines its economy. Generations have worked this soil, their lives intertwined with the cycles of planting and harvest, and the echoes of that hard-won labor can still be felt in the stoic resilience of its people. While the grander narratives of industrial booms have long since faded, a quiet industriousness persists, evident in the local businesses that serve the surrounding farms and in the steady hum of activity that marks the heart of Williamstown. The old stone bridges, arching gracefully over the creek, stand as silent witnesses to the passage of time, their surfaces smoothed by countless seasons, hinting at a past that is both sturdy and enduring, much like the land it inhabits.
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This page provides an embedded street and satellite map of Williamstown, Pennsylvania — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 39.979241, -80.040888. 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 Williamstown and Washington County.
Detailed location data for Williamstown includes the ZIP code (18080), 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 (Williams Valley 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 Williamstown 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. |