Dundalk, Maryland, United States [CDP]; population was 65,800 in 1990; housing units was 26,464 in 1990; location is 39°16'N 76°30'W; land area is 13.33 square miles (8,534 acres); water area is 4.11 square miles (2,633 acres); FIPS code is 23975 [SourceCBP]