ZIP code · Port Jefferson Station · New York · United States

ZIP code 11776 — Port Jefferson Station

ZIP code 11776 serves Port Jefferson Station, New York.

Postal code
11776
Single source Value from one source, not cross-checked.
City
Port Jefferson Station
County
Suffolk FIPS 36103
State
New York
Country
United States
Coordinates
40.9136, -73.0464 — precision precise (locality)
View on OpenStreetMap
Population
23,629 (ZCTA, ACS 5-year)
Population density
3,306 / sq mi
Land area
7.1 sq mi (18.5 km²) (ZCTA, ACS 5-year)
Median household income
$119,480
Per-capita income
$49,257
Median age
40.2
Households
8,065
Housing units
8,707
Median home value
$462,500
Median gross rent
$2,220 / month
Congressional district
NY-1 (119th Congress)
USDA hardiness zone
7b (5 to 10 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/New_York (UTC−5 / UTC−4 DST)
Area codes
631, 934
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Jul (avg high 83°F), coldest Jan (avg low 26°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F414350647278838275655646
Avg low °F262833435161686761494032
Precip in3.73.24.74.43.93.93.94.04.34.23.74.6

NOAA 1991–2020 climate normals from the nearest station: MT SINAI (2.0 mi) · NOAA NCEI

Places in ZIP 11776

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page