Swedesboro was, at the side of Bridgeport, one of only two settlements in what is now new Jersey in the colony of New Sweden. The oldest existing logging cottage in the United States was built by Antti Niilonpoika (Anthony Neilson/Nelson) in Swedesboro. It is registered as a historic monument, which is also the Church of Trinity Church. This church was founded as a Swedish Lutheran Church 1703; The current building was erected 1784.