New Brooklyn is an unincorporated community located within Monroe Township, in Gloucester County, New Jersey, United States. It was settled by John Marshall in 1803. Although it has the same name, there is a county park called New Brooklyn Park, which is located in neighboring Winslow Township, Camden County.
The Atlantic City Expressway is north of New Brooklyn. There is no direct exit to the community on the Expressway, however, the closest exit is exit 38 (County Route 536 Spur – Williamstown).