Jersey City is the second-most populous city in the U.S. state of New Jersey, after Newark. It is the county seat of Hudson County as well as the county's largest city. The 2020 United States census showed that the city's population was 292,449, ranking as the 71st-most-populous incorporated place in the nation. The 2020 census represents an increase of 18.1% from the 2010 United States Census, when the city's population stood at 247,597.