what county is jersey city nj located in
Jersey City, New Jersey Jersey City is the second-most-populous city in the U.S. state of New Jersey, after Newark.[28] It is the seat of Hudson County as well as the county's largest city.[29] As of 2016, the Census Bureau's Population Estimates Program calculated that Jersey City's population was 264,152,[22] with the largest population increase of any municipality in New Jersey since 2010,[30] an increase of about 6.7% from the 2010 United States Census, when the city's population was at 247,597,[21][31] ranking the city the 77th-largest in the nation.[32]