Islandia NY ZIP Code
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Islandia city is located in New York State, Suffolk County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Islandia NY zip code by its streets and block numbers if we have some of the Islandia streets loaded in our website
Islandia Area Code is 631/516 and Time Zone is Eastern (GMT -05:00).
Islandia Zip Code - New York
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Islandia City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Islandia ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Islandia, New York.
The Islandia Zip Code is 11749.
If you want to send a mail to Islandia City, you should use the 11749 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Islandia ZIP code system that it called ZIP+4, often called "plus-four codes", "add-on codes", or "add ons". A ZIP+4 code uses the basic 11749 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Islandia city block, a group of apartments, an individual high-volume receiver of mail or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery in New York.