Delanco, New Jersey, United States [CDP]; population was 3,316 in 1990; housing units was 1,236 in 1990; location is 40°3'N 74°57'W; land area is 2.49 square miles (1,594 acres); water area is 0.90 square miles (575 acres); FIPS code is 17110 [SourceCBP]