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 the mail travels …

Enter a corporate or residential street address, city, and state to see a specific ZIP Code ™. Find by Address By City and State

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. A standard five …

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 stands for Zone …

Your ZIP code is a 5-digit postal code used by the United States Postal Service (USPS) to identify the exact geographic region where you are located. It helps ensure mail and packages reach the correct …

Jan 15, 2025 · ZIP Codes in the USA, often referred to as “Zone Improvement Plan” codes, were introduced in 1963 to simplify and expedite mail delivery. A ZIP Code is a five-digit number that …

Jul 30, 2024 · What is a ZIP Code in the US? In the US, ZIP Code stands for “Zone Improvement Plan Code,” a postal code system introduced by USPS to efficiently organize mail delivery by dividing …

What is ZIP Code and what makes the Postal Code system so special? ZIP Codes are the postal code system used in the US. Read more.

The meaning of ZIP CODE is a number that identifies a particular postal delivery area in the U.S..

Dec 11, 2025 · Most people think of a ZIP Code as a simple five-digit number used for posting a letter. In reality, the U.S. postal system is far more sophisticated. ZIP Codes help the United States Postal …