Bridgeton is a city in Cumberland County, New Jersey, United States, in the south part of the state, on the Cohansey River, near Delaware Bay. As of the 2010 United States Census, the city's population was 25,349, reflecting an increase of 2,578 (+11.3%) from the 22,771 counted in the 2000 Census, which had in turn increased by 3,829 (+20.2%) from the 18,942 counted in the 1990 Census. It is the county seat of Cumberland County.