Grasonville, Maryland, United States [CDP]; population was 2,439 in 1990; housing units was 1,102 in 1990; location is 38°57'N 76°12'W; land area is 6.12 square miles (3,915 acres); water area is 0.04 square miles (23 acres); FIPS code is 34550 [SourceCBP]