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is a Borough in Salem County, New Jersey, United States. As of the United States 2000 Census, the borough population was 4,886.
Penns Grove was incorporated as a borough by an Act of the New Jersey Legislature on March 8, 1894, from portions of Upper Penns Neck Township (now Carneys Point Township, based on the results of a referendum held two days earlier.
According to the United States Census Bureau, the borough has a total area of 0.9 square miles (2.4 km