Shady Side, Maryland, United States [CDP]; population was 4,107 in 1990; housing units was 1,804 in 1990; location is 38°50'N 76°31'W; land area is 7.33 square miles (4,694 acres); water area is 0.58 square miles (372 acres); FIPS code is 71450 [SourceCBP]