Hudson County, New Jersey Hudson County, New Jersey Hudson County, a county in the U.S. state of New Jersey, lies west of the lower Hudson River, which was named for Henry Hudson, the sea captain who explored the area in 1609. Part of New Jersey's Gateway Region in the New York metropolitan area, Jersey City is its largest city and county seat. As of the 2017 Census estimate, Hudson County was the fastest-growing county in New Jersey compared to 2010; the county's population was 691,643, making it the state's 4th-most populous county, an increase of 9.0% from the 2010 United States Census, when its
New Jersey the state. The Hudson-Bergen Light Rail connects Bayonne to North Bergen, through Hoboken and Jersey City. The Newark Light Rail is partially underground, and connects downtown Newark with other parts of the city. The River Line connects Trenton and Camden. The PATH is a rapid transit system consisting of four lines operated by the Port Authority of New York and New Jersey. It links Hoboken, Jersey City, Harrison and Newark with New York City. The PATCO Speedline is a rapid transit system that links Camden County to Philadelphia. Both the PATCO and the PATH are two of only six rapid