Philadelphia is a major city located in the northeastern United States, within the Commonwealth of Pennsylvania. It lies in the southeastern corner of Pennsylvania, positioned at approximately 39.95° N latitude and 75.16° W longitude. Geographically, Philadelphia is situated on the eastern seaboard, along the confluence of the Delaware and Schuylkill rivers. It forms part of the Mid-Atlantic region and serves as the largest city in Pennsylvania. Philadelphia is about 95 miles southwest of New York City, 133 miles northeast of Washington, D.C., and 55 miles southwest of Trenton, New Jersey. The Delaware River forms the eastern boundary of the city, separating it from New Jersey. Philadelphia is the core city of the Delaware Valley metropolitan area, which includes parts of Pennsylvania, New Jersey, Delaware, and Maryland. The city holds historical significance as the location where key events in American history, including the signing of the Declaration of Independence and the U.S. Constitution, took place. It is also known as the "City of Brotherly Love" and has a population of approximately 1.6 million people as of the 2020 census, making it the sixth-most populous city in the United States.
