Welcome to PennsylvaniaThe Commonwealth of Pennsylvania is a state located in the Northeastern and Middle Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and a water border with Ontario to the north, and New Jersey to the east. It is the 33rd largest state in the United States. There are 51 miles (82 km) of coastline along Lake Erie and 57 miles (92 km) of shoreline along the Delaware Estuary. Pennsylvania's diverse topography produces a variety of climates. The state capital is Harrisburg which is located on the Susquehanna River in the central region of the commonwealth. The state's four most populous cities are, respectively, Philadelphia, Pittsburgh, Allentown and Erie.
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