Norfolk, Va. – Effective immediately, anyone sending mail to Navy mobile units must use a nine-digit ZIP code to ensure delivery, according to a message released by Secretary of the Navy Ray Mabus.

Question: I live in Fox Crossing in Winnebago County, but the post office gave me an Appleton address with the 54914 ZIP code. If I order anything online, I end up paying the Outagamie County ...

MINNEAPOLIS (WCCO)-- They are the five numbers that stand for home. Since 1963, ZIP codes have been a part of just about every piece of mail that travels through our system. But what do those numbers ...

The postal service may be in a financial vise right now, but 50 years ago it created an economic legacy, one now reportedly worth billions of dollars a year: On July 1, 1963, it introduced the ...

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 ...