Smithtown, New York

ZIP codes in Smithtown

Area codes for Smithtown

• Area code 631

  In service since November 1, 1999. Shares its area with 934. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

• Area code 934

  In service since July 16, 2016. Shares its area with 631. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

Smithtown is in the Eastern Time zone.

Towns near Smithtown

• Village of the Branch2.7 km (1.7 mi)
• Hauppauge3.8 km (2.4 mi)
• Kings Park4.4 km (2.7 mi)
• Saint James5.5 km (3.4 mi)
• Nesconset5.6 km (3.5 mi)
• Commack5.7 km (3.5 mi)
• St. James5.7 km (3.5 mi)
• Nissequogue5.9 km (3.7 mi)