The ZIP Code system (an acronym for Zone Improvement Plan[1]) is the system of postal codes used by the United States Postal Service (USPS). The term ZIP was chosen to suggest that …

Use our address lookup or code list to find the correct 5-digit or 9-digit (ZIP+4) code for your postal mails destination.

ZIP Codes™ are an integral part of making sure the mailpiece is processed quickly and efficiently. Not having a ZIP Code™ on your mail causes unnecessary delays because it will require …

Feb 10, 2025 · A zip code refers to a type of postal code and is used primarily in the United States and the Philippines. The postal code, however, is typically utilized by the rest of the countries …

But what is a postal code exactly? At its core, a postal code is a series of numbers (sometimes letters) added to an address to help the postal service organize and deliver mail more …

Jun 11, 2025 · What is a ZIP Code? A ZIP Code is a smart system that keeps America’s mail moving efficiently. It was created by the United States Postal Service (USPS) in 1963. ZIP …

Oct 21, 2025 · ZIP Code, system of zone coding (postal coding) introduced by the U.S. Post Office Department (now the U.S. Postal Service) in 1963 to facilitate the sorting and delivery of …

Although the name may vary from country to country, you will find a postal code system similar to the US's ZIP codes wherever you go. It makes the ZIP-code system one of the very few …

Oct 3, 2022 · A five-digit number generally known as a ZIP code is important in making sure your package is delivered; it identifies a certain postal delivery area in the United States.

Jul 30, 2024 · A ZIP code is a string of numbers made by the USPS encoding specific geographic details, aiding in efficient mail sorting and delivery.