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 ...

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 ...

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 ...