Sea Cliff, New York Zip Codes
📍 Sea Cliff is in Nassau County, New York with 1 zip code; the most populous is 11579.
Sea Cliff is a USPS city name in Nassau County, New York with a Census population of approximately 5,037 across its ZIP codes. Nassau County as a whole has 110 ZIP codes in this directory. Below you'll find every zip code serving Sea Cliff 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 Sea Cliff Zip Codes
Sea Cliff at a Glance
Sea Cliff has 1 ZIP code in this directory: 1 standard delivery ZIP. Its one ZIP with published Census housing data, 11579, has 5,037 residents.
Sea Cliff's ZIP has a household income of $185,650 and a home value of $926,500, a price-to-income ratio of 5.0, far above the 2.9 New York ZIP median. Median rent across these ZIPs is $2,268 a month.
82% of households in Sea Cliff own their home (statewide ZIP median 80%). 63% of adults hold a bachelor's degree, far above the 31% statewide median. The median poverty rate is 1.6%, far below the 9.9% statewide ZIP median. Overall density is about 4,579 residents per square mile across 1 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.
Sea Cliff Zip Code Map
Interactive map of Sea Cliff, New York zip codes. Click any marker for details.