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Feb 2, 2024 · Most countries use postal codes, a series of letters or numbers (or a combo of both) that point to a postal address. They ensure your package and mail delivery reach the correct destination. In the United States, they are five characters long and go by the term "zip code."
A postal code (also known locally in various English-speaking countries throughout the world as a postcode, post code, PIN or ZIP Code) is a series of letters or digits or both, sometimes including spaces or punctuation, included in a postal address for the purpose of sorting mail.
Welcome to USPS.com. Track packages, pay and print postage with Click-N-Ship, schedule free package pickups, look up ZIP Codes, calculate postage prices, and find everything you need for sending mail and shipping packages.
