South Orange, New Jersey, United States [CDP]; population was 16,390 in 1990; housing units was 5,488 in 1990; location is 40°45'N 74°16'W; land area is 2.86 square miles (1,831 acres); water area is 0.00 square miles (3 acres); FIPS code is 69270 [SourceCBP]