What is the term for the postal code used for mail delivery in specific areas?

The term defined as the postal code used for mail delivery in specific areas is commonly known as a ZIP Code. This system was first introduced in the United States in 1963 to facilitate more efficient mail sorting and delivery. ZIP Codes consist of a series of digits and sometimes letters that pinpoint deliveries to specific regions, cities, and even neighborhoods.

ZIP Codes help postal service providers accurately identify locations, which streamlines the sorting process and ensures that mail is sent to the correct addresses without delays. This system is beneficial not only for mailing but also for various applications, including demographic studies and local business expansions, as it provides a way to categorize and analyze populations in different regions.

Other options, such as "Street Code," "Mail Identifier," and "Location Tag," do not reflect the widely recognized terminology used in postal systems for identifying mail delivery areas. They do not have the same established meaning or usage as ZIP Code, which is why ZIP Code is the correct answer in this context.