Joppatowne, Maryland, United States [CDP]; population was 11,084 in 1990; housing units was 4,064 in 1990; location is 39°25'N 76°21'W; land area is 6.81 square miles (4,360 acres); water area is 0.50 square miles (319 acres); FIPS code is 42875 [SourceCBP]
