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| City | Petrolia |
| State | Pennsylvania (PA) |
| County | Butler |
| Country | United States of America |
| Timezone | Eastern Time (America/New_York) |
| Latitude | 41.01673 |
| Longitude | -79.717549 |
| Population | 186 |
| Density | 159.4 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 16050 |
| Area Code | 215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878 |
| County Seat | Butler |
| School District | Karns City Area School District |
Petrolia is a locality in Butler County, Pennsylvania, United States. It is a small community with a population of 186. The population density is 159.4 people per km². Petrolia is located at 41.0167°N, 79.7175°W. It observes the Eastern Time (America/New_York) timezone. ZIP code: 16050.
Petrolia rests in a landscape where rolling hills, softened by the passage of seasons, begin to yield to the flatter expanse of Butler County. It lies 33.4 miles north-north-east of McCandless, PA (from McCandless, PA: bearing 28°T), and is situated 6.5 miles north-west of Adams. The air here, especially after a rain, carries the damp, earthy scent of the soil, a constant reminder of the land's generosity and its stubborn resistance. Roads, like veins, trace the contours of the terrain, sometimes dipping into shadowed hollows where ancient trees cast long, cool fingers of shade, and sometimes climbing to sun-drenched crests that offer a brief, sweeping vista of cultivated fields and scattered farmsteads. The gentle murmur of local creeks, often unseen but always felt in the moistness of the air and the verdant growth along their banks, provides a subtle soundtrack to the quiet days in Petrolia. The story of Petrolia is inextricably bound to the black gold that once flowed from its earth, a legacy that still whispers through the remnants of its past. The late 19th century saw this region bloom with the feverish energy of the oil boom, drawing prospectors and workers who shaped the very character of the place. While the wells have long since run dry, the spirit of industry and resilience endures, now channeled into the more modest rhythms of local businesses and the steadfast routines of its residents. The old brick buildings, some still bearing the patina of that bygone era, stand as silent witnesses to the fortunes made and lost, their solid forms a grounding presence against the ever-changing sky.
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This page provides an embedded street and satellite map of Petrolia, Pennsylvania — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 41.01673, -79.717549. 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 Petrolia and Butler County.
Detailed location data for Petrolia includes the ZIP code (16050), telephone area code (215, 223, 267, 272, 412, 445, 484, 570, 582, 610, 717, 724, 814, 835, 878), county seat of Butler County (Butler), and school district assignment (Karns City 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 Petrolia 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. |