North Caldwell, New Jersey, United States [CDP]; population was 6,706 in 1990; housing units was 1,996 in 1990; location is 40°52'N 74°16'W; land area is 2.99 square miles (1,915 acres); water area is 0.00 square miles (2 acres); FIPS code is 52620 [SourceCBP]