Mountainside NJ ZIP Code
Mountainside city is located in New Jersey State, Union County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Mountainside NJ zip code by its streets and block numbers if we have some of the Mountainside streets loaded in our website
Mountainside Area Code is 908 and Time Zone is Eastern (GMT -05:00).
Mountainside Zip Code - New Jersey
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Mountainside City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Mountainside ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Mountainside, New Jersey.
The Mountainside Zip Code is 07092.
If you want to send a mail to Mountainside City, you should use the 07092 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Mountainside 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 07092 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Mountainside 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 Jersey.