Port Jefferson, New York Zip Codes
📍 Port Jefferson is in Suffolk County, New York with 1 zip code; the most populous is 11777.
Port Jefferson is a USPS city name in Suffolk County, New York with a Census population of approximately 9,347 across its ZIP codes. Suffolk County as a whole has 117 ZIP codes in this directory. Below you'll find every zip code serving Port Jefferson with population, income and home value, a map, and the city's affordability profile.
Population and demographic data sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code routing data sourced from the United States Postal Service (USPS).
All Port Jefferson Zip Codes
Port Jefferson at a Glance
Port Jefferson has 1 ZIP code in this directory: 1 standard delivery ZIP. Its one ZIP with published Census housing data, 11777, has 9,347 residents.
Port Jefferson's ZIP has a household income of $148,519 and a home value of $655,900, a price-to-income ratio of 4.4, far above the 2.9 New York ZIP median. Median rent across these ZIPs is $2,261 a month.
74% of households in Port Jefferson own their home (statewide ZIP median 80%). 69% of adults hold a bachelor's degree, far above the 31% statewide median. The median poverty rate is 5.0%, below the 9.9% statewide ZIP median. Overall density is about 2,124 residents per square mile across 4 square miles of ZIP land area.
Medians are taken across the ZIP codes listed below (each ZIP weighted equally); PO Box and no-data ZIPs are excluded. Definitions on the methodology page; statewide comparisons in the 2026 New York ZIP Code Affordability Report.
Port Jefferson Zip Code Map
Interactive map of Port Jefferson, New York zip codes. Click any marker for details.