Like our social security numbers, birth dates, and phone numbers, our ZIP codes are one of many seemingly random number sequences etched in our minds. But, for the most part, the only people who know ...

The humble ZIP Code shows up in all kinds of surprising places. Planet Money looks at how it was born, how it transformed the mail and talks to one researcher who argues that it's gone too far. The ...

Looking to buy a home in America's hottest real estate market? Pack your winter coat—you might be heading to the Northeast or the Midwest. Spokeo analyzed data from Realtor.com to explore the most ...

For some credit card purchases in Canada, a postal code is required as a security measure. If using a credit card in the U.S., you may need to use a ZIP code instead. Many or all of the products on ...

It's very easy to chalk up certain facets of our lives to just being "the way it's always been." From daylight savings time to time zones, most of us don't even give a second thought to the meaning ...