Jersey City is the second-most populous city in the U.S. state of New Jersey, after Newark. It is the seat of Hudson County as well as the county's largest city. The U.S. Census Bureau's Population Estimates Program calculated that the city's population was 262,075 in 2019, ranking as the 80th-most-populous incorporated place in the nation. The 2019 estimate represents an increase of about 5.8% from the 2010 United States Census, when the city's population was at 247,597, ranking the city the nation's 78th-largest by population.