Postal Code Meaning: How to Decipher the 5-Digit Number The meaning behind postal codes is actually more intricate than you might assume. While some ZIP codes have taken on a life of their own in ...

Learn the history and meaning of usps postal codes, why it's called a ZIP code, whether a postal code is a ZIP code, and what ZIP code numbers stand for.

Like our social security numbers, birth dates, and phone numbers, our ZIP codes are one of many seemingly random number sequences etched in our minds. But, for the most part, the only people who ...