A postal code is a five digit code used to help postal services deliver mail and packages. Here's what the numbers mean and how they determine yours.

The additional ZIP code will give the postal service the capacity to add new delivery routes and individual new addresses along routes.

The United States Postal Service informed Kinnelon officials it needs even more time to review their appeal for a unique ZIP code.

Vanity ZIP codes could be a gold mine for the United States Postal Service. Just days after upscale department store Sakes Fifth Avenue convinced the USPS to give it a vanity ZIP code for its shoe ...

The U.S. Postal Service was sharing the postal addresses of its online customers with advertising and tech giants Meta, LinkedIn and Snap, TechCrunch has found.