Amagansett, New York Zip Codes
📍 Amagansett is in Suffolk County, New York with 1 zip code; the most populous is 11930.
Amagansett is a USPS city name in Suffolk County, New York with a Census population of approximately 689 across its ZIP codes. Suffolk County as a whole has 117 ZIP codes in this directory. Below you'll find every zip code serving Amagansett 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 Amagansett Zip Codes
Amagansett at a Glance
Amagansett has 1 ZIP code in this directory: 1 standard delivery ZIP. Its one ZIP with published Census housing data, 11930, has 689 residents.
Amagansett's ZIP has a household income of $132,917 and a home value of $1,997,100, a price-to-income ratio of 15.0, far above the 2.9 New York ZIP median.
85% of households in Amagansett own their home (statewide ZIP median 80%). 62% of adults hold a bachelor's degree, far above the 31% statewide median. The median poverty rate is 0.7%, far below the 9.9% statewide ZIP median. Overall density is about 80 residents per square mile across 9 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.
Amagansett Zip Code Map
Interactive map of Amagansett, New York zip codes. Click any marker for details.