A postal code is a code used in mailing addresses to help postal services sort and deliver mail. It may contain numbers, letters, or both depending on the country.
Why postal codes matter
Postal codes make delivery routing more efficient and help identify delivery zones, local areas, or specific address groups. They are also used by online forms, shipping systems, and location-based services.
Postal code versus ZIP Code
A ZIP Code is the United States version of a postal code. Other countries use their own names and formats.
A postal code is a small part of an address, but it can make delivery much more accurate.