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 ...

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.

An early first anniversary present for some residents of Estero is being delivered, courtesy of the United States Postal Service. The Postal Service has approved using Estero as a mailing address, ...

The postal service previously updated its records in August of 2024 to designate SLO County as the default county associated with the 93426 ZIP code, but Lake Nacimiento was still not recognized as an ...

The Corona del Mar post office celebrated a once-in-a-century occurrence when the date matched its ZIP code on Friday.