Syosset NY ZIP Code
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Syosset city is located in New York State, Nassau County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Syosset NY zip code by its streets and block numbers if we have some of the Syosset streets loaded in our website
Syosset Area Code is 516 and Time Zone is Eastern (GMT -05:00).
Syosset Zip Code - New York
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Syosset City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Syosset ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Syosset, New York.
The Syosset Zip Code is 11773, 11791.
If you want to send a mail to Syosset City, you should use the 11773, 11791 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Syosset 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 11773, 11791 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Syosset 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.