East Northport, New York

1 ZIP code · Eastern time

ZIP codes (largest first)

11731 · 29,999
Population19,700
StateNew York
CountySuffolk County
Time zoneEastern
Land area5.15 sq mi

Area codes in this area

631934

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

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Population: U.S. Census Bureau, ACS 5-year estimates, 2024.