The priciest ZIP codes in the U.S. are coastal, wealthy enclaves or luxury vacation destinations where homes typically cost more than $4 million, according to a recent RealtyHop report. Atherton, ...

A little-known suburb outside Columbus, Ohio, is the most in-demand real estate market in the U.S. for the second year in a row, according to a recent Realtor.com study. Gahanna, Ohio, ranked as the ...

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 ...