Need to look up a ZIP Code™? Try the ZIP Code™ lookup tool on USPS.com. Note: The ZIP Code™ lookup tool will display the address in USPS standardized format. This may look different than the …

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 …

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 above. Some …

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

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 mail.

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 …

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.

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 …

Nov 10, 2023 · ZIP codes are a systematic method for sorting and delivering mail across the United States, ensuring efficiency and accuracy. These numerical codes represent specific geographic …

A ZIP Code is a unique five-digit numeric code designed to streamline the distribution of mail by the United States Postal Service (USPS). ZIP is an acronym for Zone Improvement Plan, and contrary to …