Zip Area Code

Stony Brook, New York

Stony Brook, New York, in Suffolk County, has ZIP codes 11790 and 11794 and area code 631, with 934 as an overlay.

ZIP codes
11790, 11794
Area codes
631, 934
Time zone
Eastern Time
Coordinates
40.9162, -73.1343

ZIP codes in Stony Brook

ZIP codePost officeCountyArea codes
11790Stony BrookSuffolk County631, 934
11794Stony BrookSuffolk County631, 934

Area codes for Stony Brook

  • 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

Stony Brook is in the Eastern Time zone.

Towns near Stony Brook