Juana Diaz, Puerto Rico, United States [ZonaUrbana]; population was 9,660 in 1990; housing units was 3,060 in 1990; location is 18°3'N 66°30'W; land area is 1.55 square miles (993 acres); water area is 0.01 square miles (8 acres); FIPS code is 38972 [SourceCBP]