Pennsylvania
U.S. state
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Why this is trending
Interest in “Pennsylvania” spiked on Wikipedia on 2026-07-21.
Categorised under Geography & Places, this article fits a familiar pattern. wt.cat.geography.1
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Key Takeaways
- Pennsylvania , officially the Commonwealth of Pennsylvania , is a state located in the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States.
- Pennsylvania's most populous city is Philadelphia, and the state capital is Harrisburg.
- Pennsylvania has the ninth-highest by population density, and is the 33rd-largest by land area.
- Pennsylvania's second-largest metropolitan area, Greater Pittsburgh, is centered in and around Pittsburgh, the commonwealth's second-largest city.
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Source summary
WikipediaPennsylvania, officially the Commonwealth of Pennsylvania, is a state located in the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, Maryland to its south, forming the Mason-Dixon Line, West Virginia to its southwest, Ohio to its west, the Canadian province of Ontario to its northwest via Lake Erie, New York to its north, and the Delaware River and New Jersey to its east. Pennsylvania's most populous city is Philadelphia, and the state capital is Harrisburg. Pennsylvania is the fifth-most populous state in the country, with over 13 million residents as of the 2020 United States census. Pennsylvania has the ninth-highest by population density, and is the 33rd-largest by land area. The largest metropolitan statistical area is the Philadelphia metropolitan area, centered on Philadelphia, the sixth-most populous U.S. city. Pennsylvania's second-largest metropolitan area, Greater Pittsburgh, is centered in and around Pittsburgh, the commonwealth's second-largest city.
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