Most Americans know their ZIP code by heart. They type it into online forms, scribble it on envelopes and memorize it as part of their address. But not everyone knows the original meaning of the term.

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 ...

Converting ZIP codes to latitude and longitude coordinates unlocks location functionality that ZIP code strings alone can’t support — distance calculations, radius searches, map markers, delivery zone ...

Take Two translates the day’s headlines for Southern California, making sense of the news and cultural events that affect our lives. Produced by Southern California Public Radio and broadcast from ...

These days, we’re all accustomed to using the ubiquitous five-digit ZIP code. But it wasn’t always so. In fact, there were no ...