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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 2000 United States Census, the CDP's population was 1,377. 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.