Old Westbury NY ZIP Code
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Old Westbury 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 Old Westbury NY zip code by its streets and block numbers if we have some of the Old Westbury streets loaded in our website
Old Westbury Area Code is 516/631 and Time Zone is Eastern (GMT -05:00).
Old Westbury Zip Code - New York
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Old Westbury City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Old Westbury ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Old Westbury, New York.
The Old Westbury Zip Code is 11568.
If you want to send a mail to Old Westbury City, you should use the 11568 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Old Westbury 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 11568 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Old Westbury 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.