ZIP Code 11777 — Port Jefferson, New York
📍 ZIP code 11777 is in Port Jefferson, Suffolk County, New York.
ZIP code 11777 is located in Port Jefferson, Suffolk County, New York. It is a standard zip code in the Eastern Time Zone with an estimated population of 9,347. The area code for zip code 11777 is 631.
ZIP Code 11777 Map
Coordinates: 40.9561°N, 73.0667°W
ZIP Code 11777 Demographics
Population
Income & Economy
Housing
Education
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).
Affordability & Profile: ZIP 11777 in Context
The median home in 11777 is valued at $655,900 against a median household income of $148,519, a price-to-income ratio of 4.4. That is far above the 2.9 median across the 1,572 New York ZIP codes with published housing data, and past the 3.0 ratio that marks an attainable market nationally, though it is among the more attainable ratios in the state. Within Suffolk County, 11777 ranks 54 of 95 ZIPs on affordability (1 = lowest ratio); the county median ratio is 4.2. Renting takes 18.3% of median household income (median rent $2,261 a month), under the 30% cost-burden threshold.
11777 ranks 136 of 1,572 statewide on median household income and 239 of 1,572 on median home value; its income is above the $128,844 Suffolk County median. 74% of households own their home, below the 80% statewide ZIP median, making this a majority-owner ZIP. 69% of adults hold a bachelor's degree or higher, far above the 31% median, and the poverty rate is 5.0%, below the 9.9% statewide ZIP median and among the lowest in the state. Unemployment stands at 3.5%.
With 2,124 residents per square mile across 4.4 square miles of land, 11777 is far denser than the statewide ZIP median of 197 (rank 399 of 1,572). This is a low-density pattern of large lots, small towns or scattered subdivisions.
Ratios and ranks are computed from the ACS figures above across the 1,572 New York ZIP codes with published housing data. See the 2026 New York affordability report for the statewide analysis and the methodology for definitions.
Nearby Zip Codes
Cities & Places Served
ZIP code 11777 primarily serves Port Jefferson in Suffolk County, New York.