Mamaroneck NY ZIP Code
Mamaroneck city is located in New York State, Westchester County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Mamaroneck NY zip code by its streets and block numbers if we have some of the Mamaroneck streets loaded in our website
Mamaroneck Area Code is 914 and Time Zone is Eastern (GMT -05:00).
Mamaroneck Zip Code - New York
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Mamaroneck City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Mamaroneck ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Mamaroneck, New York.
The Mamaroneck Zip Code is 10543.
If you want to send a mail to Mamaroneck City, you should use the 10543 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Mamaroneck 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 10543 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Mamaroneck 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.