On July 1, 1963, the U.S. Post Office Department introduced the ZIP code program to get a handle on the heaping surplus of mail. Today, those five digits represent much more for American society.

Dear editor, The United States Postal Service proudly provides mail delivery for local businesses and residents. As a ...

The House passed two bills Monday night that would authorize the U.S. Postal Service to create 76 new ZIP codes for communities nationwide.  These ...

The U.S. Postal Service plans to allow Americans to take their ZIP codes with them when they move, NPR's Andrea Seabrook reported on April 1. No, the Postal Service has not lost its mind — April ...

Green officials say the current system, which splits the city between multiple postal codes, creates tax collection problems ...

Estero ZIP code postal flap The U.S. Postal Service will allow all residents of Estero to use the village as a mailing address, even if their ZIP code comes back as a Fort Myers or Bonita address.