Bayonne is a city in Hudson County in the U.S. state of New Jersey. Located in the Gateway Region, Bayonne is situated on a peninsula between Newark Bay to the west, the Kill Van Kull to the south, and New York Bay to the east. As of the 2020 United States census, the city was the state's 15th-most-populous municipality, surpassing 2010 #15 Passaic, with a population of 71,686, an increase of 8,662 (+13.7%) from the 2010 census count of 63,024, which in turn reflected an increase of 1,182 (+1.9%) from the 61,842 counted in the 2000 census. The Census Bureau's Population Estimates Program calculated a population of 70,300 for 2023, making it the 541st-most populous municipality in the nation.