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The most basic way to sort ZIP codes in Excel is to use the "Sort" function. To do this, select the column containing your ZIP codes, then click on the "Data" tab and select "Sort A to Z" or "Sort Z to A" depending on whether you want to sort in ascending or descending order.

A United States postal code, for example, might be either five digits or five digits followed a hyphen (dash) and another four digits (12345-1234). If you are validating US postal codes, allow for both conditions. The following rule validates a field that can be five digits, five digits + dash + 4 digits, or blank.

Answer and Explanation: There are 100,000 possible 5-digit zip codes if digits can be repeated. For each of the 5 digits of the zip code, there are 10 possible digits we can use (0, 1, 2, 3, 4, 5, 6, 7, 8, 9).

So what do the extra numbers mean? These last 4 digits represent specific delivery routes within delivery areas. This extra detail means an even more precise matching to a more granular level. It could represent a handful of houses on one side of a street, or even a single building that receives a high volume of mail.

The most complete ZIP Code is a nine-digit number consisting of five digits, a hyphen, and four digits, which the USPS describes by its trademark ZIP+4. The correct format for a numeric ZIP+4 code is five digits, a hyphen, and four digits.

?the five-digit ZIP number is a structured code in which the first digit identifies one of ten large areas of the Nation, and the second digit indicates a State, a geographic portion of a heavily populated State, or two or more less populated States.

Your ZIP+4 is a basic five-digit code with four digits added as an extra identifier. It helps to identify a geographic segment within the five-digit delivery area, such as a city block, a group of apartments, an individual high-volume receiver of mail, or a post office box.