Hoboken is a city in Hudson County in the U.S. state of New Jersey. Hoboken is part of the New York metropolitan area and is the site of Hoboken Terminal, a major transportation hub. As of the 2020 United States census, the city's population was 60,419, an increase of 10,414 (+20.8%) from the 2010 census count of 50,005, which in turn reflected an increase of 11,428 (+29.6%) from the 38,577 counted in the 2000 census. The Census Bureau's Population Estimates Program calculated that the city's population was 57,703 in 2022, ranking the city as the 688th-most-populous in the country. With more than 42,400 inhabitants per square mile (16,400/km2) in data from the 2010 census, Hoboken was ranked as the third-most densely populated municipality in the United States among cities with a population above 50,000. In the 2020 census, the city's population density climbed to more than 48,300 inhabitants per square mile (18,600/km2) of land, ranked fourth in the county behind Guttenberg, Union City and West New York.

Hudson County is the smallest and most densely populated county in the U.S. state of New Jersey. It 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, the county seat is Jersey City, which is the county's largest city in terms of both population and area. The county is part of the North Jersey region of the state.