Northeast megalopolis
Philadelphia is by far the largest municipality in the Delaware Valley, and serves as the region's major commercial, cultural, and industrial center. Other municipalities in the MSA include Camden, New Jersey and Wilmington, Delaware, while the larger CSA also includes municipalities such as Reading, Pennsylvania and Atlantic City, New Jersey. The Delaware Valley Metropolitan Area is located in the Northeastern United States and forms part of a larger urbanized area known as the Northeast megalopolis. According to the Bureau of Economic Analysis, the Philadelphia metropolitan area has a gross domestic product of $431 billion, the ninth-largest among U.S. metropolitan areas. 2016 Census Bureau estimates rank the Delaware Valley CSA as the ninth-largest CSA in the United States.