Some of the cities, towns, and places in Salem County are Aldine, Alloway CDP, Alloway Junction, Alloway Township, Brotmanville, Carneys Point CDP, Carneys Point Township, Centerton, Daretown, Deepwater, Elmer, Elsinboro Township, Friendship, Friesburg, Hancock's Bridge CDP, Helms Cove, Laytons Lake, Lower Alloways Creek Township, Mannington Township, Marshalltown, Monroeville, Norma, Oakland, Oldmans Township, Olivet CDP, Pecks Corner, Pedricktown CDP, Penns Grove, Pennsville CDP, Pennsville Township, Penton, Pilesgrove Township, Pittsgrove Township, Pointers, Quinton CDP, Quinton Township, Remsterville, Riddleton, Salem, Upper Pittsgrove Township, Whig Lane, Woodstown
Salem County is a county located in the U.S. state of New Jersey. Its western boundary is formed by the Delaware River and it has the eastern terminus of the Delaware Memorial Bridge, connecting to New Castle, Delaware. Its county seat is Salem. The county is part of the Delaware Valley area. As of the 2019 Census estimate, the county's population was 62,385, making it the state's least populous county, representing a 5.6% decrease from the 66,083 enumerated at the 2010 Census, in turn increasing by 1,798 (+2.8%) from the 64,285 counted in the 2000 Census, retaining its position as the state's least populous county. The most populous place was Pennsville Township, with 13,409 residents at the time of the 2010 Census. Lower Alloways Creek Township covers 72.46 square miles (187.7 km2), the largest total area of any municipality.