Port Jefferson, New York

ZIP codes in Port Jefferson

Area codes for Port Jefferson

• 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

Port Jefferson is in the Eastern Time zone.

Towns near Port Jefferson

• Belle Terre1.7 km (1.1 mi)
• Poquott2.6 km (1.6 mi)
• Port Jefferson Station3.8 km (2.4 mi)
• Terryville4.2 km (2.6 mi)
• East Setauket4.3 km (2.7 mi)
• Setauket4.5 km (2.8 mi)
• Mount Sinai4.6 km (2.9 mi)
• Miller Place5.9 km (3.7 mi)