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 ...

Everyone has memorized exactly two ZIP codes: 90210 and whatever their own ZIP code is. We can thank a certain TV show set in Beverly Hills for that. Aside from that, general knowledge of these ...

After 25 years of persistence, residents in the City of Green can now list "Green" as their official mailing address.

50 years ago, the U.S. Postal Service introduced the zip code system to more efficiently and accurately deliver mail. But not everyone was excited about the idea. Pity the poor U.S. Postal Service, ...

The USPS already works with local communities to resolve similar requests by allowing customers to use their preferred city ...