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 ...

Recently I wrote an article about why so many stores ask for your ZIP code at check-out. With your name and ZIP they can turn to outside data brokers to learn your address, phone number and email -- ...

You might not feel so friendly with your neighbors across the street if you found out they're paying $410 less in annual car insurance premiums -- even though everything about you and your neighbor is ...

The holidays were busy for mail carriers because we were busy sending packages with a familiar five-digit code. Our Planet Money team got curious, where did ZIP codes come from? Here's reporter Sally ...