What Is ZIP Code
A ZIP Code is a group of letters, digits, or both, occasionally with spaces or punctuation, that are added to a postal address for mail sorting.
A zip code is also known as a postal code, a postcode, or post code and is used interchangeably.
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Even though zip or postal codes are usually given to geographic areas, sometimes special codes are given to specific addresses or institutions that get a lot of mail, like large corporations and government agencies.