Q:

What is a ZIP+4 code?

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Quick Answer

ZIP+4 codes are extensions to original five digit zip codes that include more specific geographic locations. They are designed to aid in the sorting and delivery of mail.

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Full Answer

The original five digits of the zip code indicate a specific part of the country. The sixth and seventh digits include more specific areas, such as a city block or a group of apartments. The eighth and ninth digits are even more specific, identifying individual P.O. Boxes, streets, or even representing a whole floor in a building. Companies such as UPS and FedEx have adopted the ZIP+4, though it was originally created for USPS.

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