Today marks the 50th anniversary of the Zone Improvement Plan, the network of ZIP codes we use for everything from mail delivery to credit card security. The U.S. Postal Service began using the ...

Today on All Things Considered, NPR's Andrea Seabrook reported that the U.S. Postal Service plans to launch next month a national "Portable ZIP Codes" program. Under the program, Americans would be ...

Everyone knows the ZIP code 90210—but what about these other notable codes around the country? The Zone Improvement Plan, otherwise known as the ZIP code, is the network of postal codes the U.S.

Psst, your ZIP code is telling all your secrets. In fact, so much is hidden in that short string of digits at the end of your address – we're talking pride, discrimination and marketing gold. Starting ...

The Phillipston Selectboard has requested that the U.S. Postal Service assign the town its own unique ZIP code, as it currently shares the 01331 ZIP code with Athol, which can cause confusion for ...

Well, we’re just zipping right through this series, no? So far we’ve looked at various postal machines and how they work to flip mail around, cancel the postage, and sort it, all in a matter of ...