East Northport, New York Zip Codes
📍 East Northport is in Suffolk County, New York with 1 zip code; the most populous is 11731.
East Northport is a USPS city name in Suffolk County, New York with a Census population of approximately 29,891 across its ZIP codes. Suffolk County as a whole has 117 ZIP codes in this directory. Below you'll find every zip code serving East Northport 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 East Northport Zip Codes
East Northport at a Glance
East Northport has 1 ZIP code in this directory: 1 standard delivery ZIP. Its one ZIP with published Census housing data, 11731, has 29,891 residents.
East Northport's ZIP has a household income of $158,819 and a home value of $622,100, a price-to-income ratio of 3.9, above the 2.9 New York ZIP median. Median rent across these ZIPs is $2,261 a month.
91% of households in East Northport own their home (statewide ZIP median 80%). 51% of adults hold a bachelor's degree, far above the 31% statewide median. The median poverty rate is 4.4%, far below the 9.9% statewide ZIP median. Overall density is about 3,601 residents per square mile across 8 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.
East Northport Zip Code Map
Interactive map of East Northport, New York zip codes. Click any marker for details.