Port Norris is an unincorporated community and census-designated place (CDP) located within Commercial Township, in Cumberland County, in the U.S. state of New Jersey. It is part of the Vineland-Millville- Bridgeton Primary Metropolitan Statistical Area for statistical purposes. As of the 2020 census, Port Norris had a population of 1,111. Legislation was passed in 1911, allowing voters to choose to incorporate Port Norris as a borough, independent from Commercial Township, but it was defeated in a referendum.