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. Back ...

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 ...

Many communities currently have outdated zip codes that may cause issues, such as slower mail delivery or delayed emergency service response times. Supporters of Boebert's bipartisan bill believe this ...