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 ...

Urbandale has two primary ZIP codes. But it also has ZIP codes tied to Des Moines, Johnston, Grimes and Waukee, assigned with new developments.

Pro tip: Make sure the zip code is correct. The wrong zip code can get your item stuck in the system.

Today marks the 50th anniversary of the Zone Improvement Plan, the network of ZIP codes we use for everything from mail delivery to credit card security. The U.S. Postal Service began using the ...

Fifty years ago this week, the U.S. Postal Service rolled out ZIP codes in an effort to make it easier to sort a surge in post-war mail. The humble addition of five digits to every address in the ...

POSTAL CLERKS are not the only ones who look at life through a five-digit prism. Zip codes can sort the world into the most desirable neighborhoods in which to live: Good, better and best. Think about ...

Some homeowners in West Frisco are wondering if their holiday packages reach them in time for Christmas because of a change in zip codes. They are living with two zip codes after the U.S. Postal ...