Colonia, New Jersey, United States [CDP]; population was 18,238 in 1990; housing units was 6,209 in 1990; location is 40°36'N 74°19'W; land area is 3.90 square miles (2,497 acres); water area is 0.01 square miles (5 acres); FIPS code is 14380 [SourceCBP]