Luquillo, Puerto Rico, United States [ZonaUrbana]; population was 8,672 in 1990; housing units was 4,065 in 1990; location is 18°23'N 65°43'W; land area is 1.16 square miles (744 acres); water area is 0.50 square miles (318 acres); FIPS code is 47787 [SourceCBP]