How is it that a simple five-digit ZIP code provides any insight into who you are? After reading my recent article on how stores often ask for our ZIP codes to build marketing profiles, Michael ...

After the 5-digit ZIP code gets the mail to your local post office, the "plus 4" code gets it to your neighborhood. "Do you have to write it on your letters?" asked WCCO reporter Jason DeRusha.

The 54915 ZIP code can indicate Calumet and Outagamie counties, which have a 0.5% sales tax, but also Winnebago County, which doesn't have the tax.

Removing the necessity of city and state on envelopes and packages, and leaving it to a formulaic five-digit zip code improved accuracy of mail sorting, and quite frankly, greatly improved the speed ...

The idea of a five-digit ZIP Code alone wasn't enough-it would be useless without a high adoption rate. And Day had been warned: executives at AT&T noted the difficulty they had in getting the ...

The U.S. Postal Service began using the five-digit ZIP code in 1963. In recognition of the anniversary, we've examined the list of more than 40,000 ZIP codes and highlighted a few that deserve ...

“The code was originally intended to allow mail sorting methods to be automated but ended up creating unimagined socio-economic benefits as an organizing and enabling device. The ZIP Code became ...