Clementon, New Jersey, United States [Borough]; population was 5,601 in 1990; housing units was 2,420 in 1990; location is 39°48'N 74°59'W; land area is 1.89 square miles (1,211 acres); water area is 0.06 square miles (36 acres); FIPS code is 13420 [SourceCBP]