Philadelphia, is the largest city in the U.S. state of Pennsylvania, and the sixth-most populous U.S. city. The city forms the urban core of the eighth-largest U.S. metropolitan statistical area, with over 6 million residents in the larger metropolitan area. Philadelphia is also the economic and cultural anchor of the greater Delaware Valley, within the Northeast megalopolis. The Delaware Valley is the ninth-largest combined statistical area in the United States.
Philadelphia is one of the oldest municipalities in the United States. William Penn, an English Quaker, founded the city in 1682 to serve as capital of the Pennsylvania Colony. In the 19th and 20th centuries, Philadelphia became a major industrial centre and a railroad hub. The city grew due to an influx of European immigrants, most of whom initially came from Ireland and Germany—the two largest reported ancestry groups in the city. Later immigrant groups in the 20th century came from Italy and other Southern European and Eastern European countries. In the early 20th century, Philadelphia became a prime destination for African Americans during the Great Migration after the Civil War. Puerto Ricans began moving to the city in large numbers in the period between World War I and II, and in even greater numbers in the post-war period.
The Philadelphia area's many universities and colleges make it a top study destination, as the city has evolved into an educational and economic hub. As of 2019, the Philadelphia metropolitan area is estimated to produce a gross metropolitan product (GMP) of $490 billion. Philadelphia is the centre of economic activity in Pennsylvania and is home to five Fortune 1000 companies. The Philadelphia skyline is expanding, with a market of almost 81,900 commercial properties in 2016, including several nationally prominent skyscrapers. Philadelphia has more outdoor sculptures and murals than any other American city. Fairmount Park, when combined with the adjacent Wissahickon Valley Park in the same watershed, is one of the largest contiguous urban park areas in the United States. The city is known for its arts, culture, cuisine, and colonial history, attracting 42 million domestic tourists in 2016 who spent $6.8 billion, generating an estimated $11 billion in total economic impact in the city and surrounding four counties of Pennsylvania. Philadelphia has also emerged as a biotechnology hub.
Philadelphia contains 67 National Historic Landmarks and the World Heritage Site of Independence Hall. The city became a member of the Organization of World Heritage Cities in 2015, as the first World Heritage City in the United States.
Philadelphia's economic sectors include financial services, health care, biotechnology, information technology, trade and transportation, manufacturing, oil refining, food processing, and tourism. Financial activities account for the largest economic sector of the metropolitan area, which is also one of the largest health education and research centres in the United States. Sectors with the largest number of jobs added were in education and health care, leisure and hospitality, and professional and business services. The city's two largest employers are the federal and city governments. Philadelphia's largest private employer is the University of Pennsylvania followed by the Children's Hospital of Philadelphia.
Corporations The city is home to the Philadelphia Stock Exchange and the headquarters of cable television and internet provider Comcast, Brandywine Realty Trust, insurance companies Cigna, Colonial Penn, and Independence Blue Cross, food services company Aramark, chemical makers FMC Corporation and Rohm and Haas, pharmaceutical company GlaxoSmithKline, apparel retailer Urban Outfitters and its subsidiaries including Anthropologie, automotive parts retailer Pep Boys, and stainless steel producer Carpenter Technology Corporation. The headquarters of Boeing Rotorcraft Systems, and its main rotorcraft factory, are in the Philadelphia suburb of Ridley Park, while The Vanguard Group and the US headquarters of Siemens Healthineers are headquartered in suburban Malvern.
Tech and biotech Philadelphia has emerged as a hub for information technology and biotechnology. Philadelphia and Pennsylvania are attracting new life sciences ventures. The Philadelphia metropolitan area, comprising the Delaware Valley, has also become a growing hub for venture capital funding.
Tourism Philadelphia's history attracts many tourists, with the Independence National Historical Park (which includes the Liberty Bell, Independence Hall, and other historic sites) receiving over 5 million visitors in 2016. The city welcomed 42 million domestic tourists in 2016 who spent $6.8 billion, generating an estimated $11 billion in total economic impact in the city and surrounding four counties of Pennsylvania.
Trade and transportation Philadelphia International Airport and the Port of Philadelphia are key to the city's international connections. Philadelphia's 30th Street Station is the third-busiest Amtrak rail hub, carrying over 4 million inter-city rail passengers annually.
Philadelphia is rated Beta by the Globalization and World Cities Research Network (GaWC) which evaluates and ranks the relationships between world cities in the context of globalisation. Beta level cities are cities that link moderate economic regions to the world economy.
Philadelphia is ranked #27 by the Global Urban Competitiveness Report (GUCR) which evaluates and ranks world cities in the context of economic competitiveness. Philadelphia was ranked #433 by the Nomad List which evaluates and ranks remote work hubs by cost, internet, fun and safety. Philadelphia has a population of over 1,584,064 people. Philadelphia also forms part of the wider Delaware Valley metropolitan area which has a population of over 7,200,000 people. Philadelphia is the #106 hipster city in the world, with a hipster score of 4.3635 according to the Hipster Index which evaluates and ranks the major cities of the world according to the number of vegan eateries, coffee shops, tattoo studios, vintage boutiques, and record stores per 100,000 city residents.