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 …
What is my Zip Code - Zip Code Finder | Map Developers
What is a zip code/postal code? In the United States of America a zipcode is five or nine numbers that are added to a postal address to assist the sorting of mail.
Free ZIP code map, zip code lookup, and zip code list
US ZIP codes are a type of postal code used within the United States to help the United States Postal Service (USPS) route mail more efficiently. ZIP codes near me are shown on the map …
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 …
What Is a ZIP Code? Definition, ZIP+4, Lookup, and USPS Basics
At its core, a ZIP code is a U.S. postal code that lets the United States Postal Service group addresses into logical clusters so machines and people can sort mail and deliver mail reliably. …
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 postal code, a zip code, and how do they differ?
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 …
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 | 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 …
Understanding Zip Codes in the United States: A Comprehensive …
Jan 9, 2025 · Zip codes, or Zone Improvement Plans, are numerical codes assigned by the United States Postal Service (USPS) to facilitate the efficient delivery of mail. Introduced in 1963, …