A ZIP code, short for “Zone Improvement Plan” code, is a numerical code used in postal addresses to simplify mail sorting and delivery in the United States.
Comprising five digits, it identifies specific geographic areas or locations. Extended versions, known as ZIP+4 codes, include an additional four digits for more precise address information.
ZIP codes assist postal services in efficient mail routing and allow for demographic and delivery tracking. They’re widely used for various purposes, from mail delivery to marketing and location-based services.