Find the last 4 digits (ZIP+4) for an address in 11731

ZIP 11731, East Northport, NY is filled in. Just type the street address.

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ZIP Code 11731 – East Northport, NY

East Northport, New York · Suffolk County · Eastern time

ZIP code11731
CityEast Northport
StateNew York
CountySuffolk County
Population29,999
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area8.32 sq mi
Center (lat, long)40.8626, -73.3170

Area codes in this area

631934

These are the area codes that most often serve ZIP 11731 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

11740 Greenlawn · 2.3 mi11725 Commack · 2.4 mi11754 Kings Park · 3.8 mi11721 Centerport · 3.9 mi11746 Huntington Station · 4.1 mi11768 Northport · 4.4 mi11787 Smithtown · 5.6 mi11743 Huntington · 5.7 mi

About ZIP 11731

ZIP code 11731 is assigned to East Northport, New York. It lies in Suffolk County. Its Census area covers about 8.32 square miles of land. The closest neighboring ZIP is 11740 (Greenlawn), about 2.3 miles away.

Every address in 11731 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources