Trujillo Alto, Puerto Rico, United States [ZonaUrbana]; population was 44,336 in 1990; housing units was 14,052 in 1990; location is 18°22'N 66°1'W; land area is 6.28 square miles (4,020 acres); water area is 0.09 square miles (60 acres); FIPS code is 83606 [SourceCBP]