Information For ZIP Code 501 City Holtsville

Map For Location Holtsville

Location Information


Country : United States
State : New York
County : Suffolk
• Total : 19,714
• Land : 7.1 sq mi (18.4 km2)
• Water : 0.0 sq mi (0.0 km2)
Elevation : 105 ft (32 m)
• Density : 2,800/sq mi (1,100/km2)
Time zone : UTC-5 (Eastern (EST))
• Summer (DST) : UTC-4 (EDT)
ZIP codes : 00501, 00544, 11742
Area code(s) : 631
FIPS code : 36-35254
GNIS feature ID : 0953030