Philadelphia, colloquially referred to as Philly, is the most populous city in the U.S. state of Pennsylvania and the sixth-most populous city in the United States, with a population of 1,603,797 in the 2020 census. The city is the urban core of the larger Delaware Valley, also known as the Philadelphia metropolitan area, the nation's eighth-largest metropolitan area and seventh-largest combined statistical area with 6.245 million residents and 7.366 million residents, respectively.
AdFind discounts on the best Philadelphia Pennsylvania. Tripadvisor helps you spend less. Save money & book with Tripadvisor, the world's largest travel website.
World's largest, oldest, and most trusted travel community – Forbes
AdFrom Viator, A TripAdvisor Company. Book 5-Star Tours and Activities. Viator Offers 300,000+ Unique Travel Experiences. Make Lifelong Travel Memories. Book Now!