What Is a Postal Code?
Postal codes are a series of numbers (and sometimes letters!) used by the United States Postal Service to direct and deliver mail around the country. There are generally two widely accepted versions of a postal code: a ZIP code and a ZIP + 4 code.
Established in 1963, ZIP codes Local Movers BY Zip Code
are the most common and recognizable postal code used by the USPS. The ZIP stands for Zone Improvement Plan; the codes were invented to help the postal service automate mail sorting methods. (The fact that it’s an acronym means that, yes, the ZIP in ZIP code should be capitalized.) 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 that later!).
Similarly, ZIP + 4 codes allow postal service providers to get even more specific about the destination of your mail. Most frequently utilized in larger, more dense cities, ZIP + 4 codes can narrow down your mail delivery to a single city block or apartment building. Pretty amazing, right?