Willingboro, New Jersey, United States [CDP]; population was 36,291 in 1990; housing units was 11,236 in 1990; location is 40°2'N 74°53'W; land area is 7.70 square miles (4,930 acres); water area is 0.33 square miles (214 acres); FIPS code is 81470 [SourceCBP]