Seaside Heights, New Jersey, United States [Borough]; population was 2,366 in 1990; housing units was 2,844 in 1990; location is 39°57'N 74°5'W; land area is 0.48 square miles (304 acres); water area is 0.02 square miles (13 acres); FIPS code is 66450 [SourceCBP]