Masonboro, North Carolina, United States [CDP]; population was 7,010 in 1990; housing units was 2,687 in 1990; location is 34°10'N 77°52'W; land area is 6.10 square miles (3,902 acres); water area is 0.64 square miles (409 acres); FIPS code is 41740 [SourceCBP]