Newark is the largest city in the American state of New Jersey, and the seat of Essex County. As of the 2010 United States Census, Newark had a population of 277,140, maintaining its status as the largest municipality in New Jersey. It is the 68th largest city in the U.S. and one of the nation's major air, shipping, and rail hubs. Newark is located in the heart of New Jersey's Gateway Region, approximately 8 miles (13 km) west of Manhattan. Its location near the Atlantic Ocean on Newark Bay has helped make its port facility, Port Newark, the key container shipping facility for the New York metropolitan area, and the largest on the East Coast. It is the home of Newark Liberty International Airport, the first municipal commercial airport in the United States, and one of the busiest today. Newark is headquarters to numerous corporations such as Prudential Financial and PSEG, universities campuses of UMDNJ, Rutgers University and New Jersey Institute of Technology, as well as numerous cultural and sports venues.