A postal code is a five digit code used to help postal services deliver mail and packages. Here's what the numbers mean and how they determine yours.

What is a postal code? We have the answers. What is a postal code? A postal code is a set of specific numbers, and sometimes letters, that helps postal services deliver mail. A five-digit number ...

Almost everyone knows their five digit ZIP code, and probably a few others within their city, but what’s up with the extra four digits you sometimes see on mail? Let’s start with those first ...