Pennsylvania  is a state located in the Northeastern and Middle Atlantic regions of the United States. It borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada to the north, and New Jersey to the east.  Nicknames include: Liberty Bell State, Independence State, Keystone State, and Quaker State. It was admitted to the Union as the 2nd state on December 12, 1787.  Pennsylvania has Populated Places in 67 counties...