Westhampton Beach, New York Zip Codes
📍 Westhampton Beach is in Suffolk County, New York with 1 zip code; the most populous is 11978.
Westhampton Beach is a USPS city name in Suffolk County, New York with a Census population of approximately 4,376 across its ZIP codes. Suffolk County as a whole has 117 ZIP codes in this directory. Below you'll find every zip code serving Westhampton Beach 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 Westhampton Beach Zip Codes
Westhampton Beach at a Glance
Westhampton Beach has 1 ZIP code in this directory: 1 standard delivery ZIP. Its one ZIP with published Census housing data, 11978, has 4,376 residents.
Westhampton Beach's ZIP has a household income of $108,938 and a home value of $1,045,100, a price-to-income ratio of 9.6, far above the 2.9 New York ZIP median. Median rent across these ZIPs is $2,079 a month.
85% of households in Westhampton Beach own their home (statewide ZIP median 80%). 59% of adults hold a bachelor's degree, far above the 31% statewide median. The median poverty rate is 9.9%, in line with the 9.9% statewide ZIP median. Overall density is about 429 residents per square mile across 10 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.
Westhampton Beach Zip Code Map
Interactive map of Westhampton Beach, New York zip codes. Click any marker for details.