Key Largo, Florida, United States [CDP]; population was 11,336 in 1990; housing units was 7,594 in 1990; location is 25°6'N 80°26'W; land area is 9.31 square miles (5,960 acres); water area is 13.09 square miles (8,380 acres); FIPS code is 36375 [SourceCBP]