Swedesboro is a borough within Gloucester County in the U.S. state of New Jersey, within the Philadelphia metropolitan area. As of the 2020 United States census, the borough's population was 2,711, its highest decennial count ever and an increase of 127 (+4.9%) from the 2,584 recorded at the 2010 census, which in turn reflected an increase of 529 (+25.7%) from the 2,055 counted in the 2000 census. Swedesboro and surrounding Gloucester County constitute part of South Jersey.