Lexington Park, Maryland, United States [CDP]; population was 9,943 in 1990; housing units was 3,809 in 1990; location is 38°16'N 76°27'W; land area is 8.03 square miles (5,140 acres); water area is 0.10 square miles (63 acres); FIPS code is 46725 [SourceCBP]