ZIP Code - Wikipedia
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 …
Introduction of the ZIP Code - U.S. Postal Facts
The first number in the five-digit ZIP Code represents a general geographic area of the nation, “0” in the east, moving to “9” in the west. The next two numbers represent regional areas, and the …
ZIP CODE Definition & Meaning - Merriam-Webster
The meaning of ZIP CODE is a number that identifies a particular postal delivery area in the U.S..
This Is What ZIP Code Really Means | Trusted Since 1922
Feb 15, 2023 · The U.S. Postal Service started using the current ZIP code system in 1963. This is what each digit means and how they get mail into your mailbox.
ZIP Code Meaning: What the Numbers Mean & How They Work
Jun 21, 2025 · ZIP codes are structured to provide a systematic way of identifying geographic locations for efficient mail delivery. The standard ZIP code consists of five digits, while an …
ZIP Code Meaning & History: Everything You Need to Know
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 …
What Is a ZIP Code? Definition, ZIP+4, Lookup, and USPS Basics
Learn what a ZIP code is, how ZIP+4 works, and how USPS uses codes for faster delivery. Try ZIP code lookup and address verification.
ZIP CODE | English meaning - Cambridge Dictionary
ZIP CODE definition: 1. in the US, a series of numbers that forms part of an address, used to help organize post so that…. Learn more.
ZIP Code | Postal Addressing, Delivery, Formatting | Britannica
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 …
What is a ZIP Code? Origins, Formats, and Applications.
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.