Southold NY ZIP Code
Southold 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 Southold NY zip code by its streets and block numbers if we have some of the Southold streets loaded in our website
Southold Area Code is 631 and Time Zone is Eastern (GMT -05:00).
Southold Zip Code - New York
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Southold City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Southold ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Southold, New York.
The Southold Zip Code is 11971.
If you want to send a mail to Southold City, you should use the 11971 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Southold 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 11971 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Southold 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.