Stony Brook, New York Zip Codes
📍 Stony Brook is in Suffolk County, New York with 2 zip codes; the most populous is 11790.
Stony Brook is a USPS city name in Suffolk County, New York with a Census population of approximately 21,453 across its ZIP codes. Suffolk County as a whole has 117 ZIP codes in this directory. Below you'll find every zip code serving Stony Brook 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 Stony Brook Zip Codes
Stony Brook at a Glance
Stony Brook has 2 ZIP codes in this directory: 2 standard delivery ZIPs. Its one ZIP with published Census housing data, 11790, has 21,453 residents.
Stony Brook's ZIP has a household income of $157,695 and a home value of $590,000, a price-to-income ratio of 3.7, above the 2.9 New York ZIP median. Median rent across these ZIPs is $2,652 a month.
90% of households in Stony Brook own their home (statewide ZIP median 80%). 69% of adults hold a bachelor's degree, far above the 31% statewide median. The median poverty rate is 4.7%, far below the 9.9% statewide ZIP median. Overall density is about 2,860 residents per square mile across 8 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.
Stony Brook Zip Code Map
Interactive map of Stony Brook, New York zip codes. Click any marker for details.