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Port Jefferson, NY ZIP code

The ZIP code for Port Jefferson (also written Pt. Jefferson), New York is 11777. It is in Suffolk County.

Population in these ZIPs
9,396
Avg. median income
$150,500population-weighted
Typical home value
$795,900population-weighted
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ZIP codes within 10 miles

Port Jefferson, NY ZIP code list

Port Jefferson, NY ZIP codes
ZIP codePopulationMedian incomeTypical home value
117779,396$150,505$795,900

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near Port Jefferson

Frequently asked questions

What is the ZIP code for Port Jefferson, NY?

The ZIP code for Port Jefferson, NY is 11777.

What county is Port Jefferson, New York in?

Port Jefferson ZIP codes are in Suffolk County.