Toa Alta, Puerto Rico, United States [ZonaUrbana]; population was 4,941 in 1990; housing units was 1,507 in 1990; location is 18°23'N 66°15'W; land area is 0.62 square miles (396 acres); water area is 0.02 square miles (14 acres); FIPS code is 82488 [SourceCBP]