Port Norris is an unincorporated community and census-designated place (CDP) located within Commercial Township, in Cumberland County, New Jersey, United States. It is portion 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.

On a late night in September 2007, an undercover operation to put a halt to the drag racing was commenced, and in the works to 62 people were caught participating in a major drag race gathering. About 208 summonses were issued and several cars were impounded.

According to the United States Census Bureau, the CDP had a total area of 6.829 square miles (17.685 km), including 6.335 square miles (16.407 km²) of house and 0.494 square miles (1.279 km) of water (7.23%). Port Norris is located near the mouth of the Maurice River.

The 2010 United States census counted 1,377 people, 481 households, and 355 families in the CDP. The population density was 217.4 per square mile (83.9/km). There were 552 housing units at an average density of 87.1 per square mile (33.6/km²). The racial makeup was 66.23% (912) White, 26.22% (361) Black or African American, 0.29% (4) Native American, 0.73% (10) Asian, 0.00% (0) Pacific Islander, 1.89% (26) from supplementary races, and 4.65% (64) from two or more races. Hispanic or Latino of any race were 6.32% (87) of the population.