There is also another type of postal code, the ZIP + 4 code. According to unitedstateszipcodes.org, the ZIP + 4 was established in 1983 and identifies an even more specific location within a ZIP code.

ZIP codes consist of five numbers, each with its own individual meaning which helps your mail and packages end up in the right area of the country—and even the right local post office (more on ...

Your billing zip code, or credit card postal code, is the five-digit number on the bottom right, which in this sample is 90210. This would be the zip code associated with your billing address.

When prompted for your ZIP code, enter the three digits from your postal code, followed by “00.” For example, if your postal code is M4B 1G5, your credit card ZIP code would be 41500.

When I search for the ZIP code of my agricultural hometown, I discover 13% of the population apparently watches the Discovery Channel and unspecified “Hispanic Programs” and loves scrapbooking ...

DIGIPIN, short for Digital Postal Index Number, is a 10-letter alphanumeric code assigned to a specific 4m x 4m area. Unlike PIN codes, which are assigned and cover large areas, DIGIPIN pinpoints ...