Hewlett, New York Zip Codes
📍 Hewlett is in Nassau County, New York with 1 zip code; the most populous is 11557.
Hewlett is a USPS city name in Nassau County, New York with a Census population of approximately 8,503 across its ZIP codes. Nassau County as a whole has 110 ZIP codes in this directory. Below you'll find every zip code serving Hewlett 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 Hewlett Zip Codes
Hewlett at a Glance
Hewlett has 1 ZIP code in this directory: 1 standard delivery ZIP. Its one ZIP with published Census housing data, 11557, has 8,503 residents.
Hewlett's ZIP has a household income of $170,048 and a home value of $708,400, a price-to-income ratio of 4.2, above the 2.9 New York ZIP median. Median rent across these ZIPs is $2,287 a month.
95% of households in Hewlett own their home (statewide ZIP median 80%). 65% of adults hold a bachelor's degree, far above the 31% statewide median. The median poverty rate is 3.2%, far below the 9.9% statewide ZIP median. Overall density is about 4,252 residents per square mile across 2 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.
Hewlett Zip Code Map
Interactive map of Hewlett, New York zip codes. Click any marker for details.