East Islip, New York Zip Codes
📍 East Islip is in Suffolk County, New York with 1 zip code; the most populous is 11730.
East Islip is a USPS city name in Suffolk County, New York with a Census population of approximately 14,376 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 Islip 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 Islip Zip Codes
East Islip at a Glance
East Islip has 1 ZIP code in this directory: 1 standard delivery ZIP. Its one ZIP with published Census housing data, 11730, has 14,376 residents.
East Islip's ZIP has a household income of $146,190 and a home value of $577,600, a price-to-income ratio of 4.0, above the 2.9 New York ZIP median. Median rent across these ZIPs is $2,508 a month.
85% of households in East Islip own their home (statewide ZIP median 80%). 39% of adults hold a bachelor's degree, above the 31% statewide median. The median poverty rate is 4.5%, far below the 9.9% statewide ZIP median. Overall density is about 3,195 residents per square mile across 5 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 Islip Zip Code Map
Interactive map of East Islip, New York zip codes. Click any marker for details.