West Islip NY ZIP Code
West Islip 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 West Islip NY zip code by its streets and block numbers if we have some of the West Islip streets loaded in our website
West Islip Area Code is 631 and Time Zone is Eastern (GMT -05:00).
West Islip Zip Code - New York
The US ZIP Code basic format consists of five decimal numerical digits assigned to the West Islip City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the West Islip ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in West Islip, New York.
The West Islip Zip Code is 11795.
If you want to send a mail to West Islip City, you should use the 11795 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded West Islip 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 11795 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a West Islip 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.