Philadelphia, often called Philly, is the largest city in the U.S. state and Commonwealth of Pennsylvania, and the sixth-most populous U.S. city, with a 2017 census-estimated population of 1,580,863 The Philadelphia Corporation on Aging has a...
Pittsburgh ( PITS-burg) is a city in the Commonwealth of Pennsylvania in the United States, and is the county seat of Allegheny County. As of 2017, a total population of 305,704 lives within the city limits, making it the 63rd-largest city in t...
Allentown (Pennsylvania Dutch: Allenschteddel) is a city located in Lehigh County, Pennsylvania, United States. It is Pennsylvania's third most populous city and the 231st largest city in the United States. As of the 2010 census, the city had a to...
Erie is a city in and the county seat of Erie County, Pennsylvania, United States. Named for the lake and the Native American tribe that resided along its southern shore, Erie is the fourth-largest city in Pennsylvania, as well as the largest cit...