Using & Finding Correct Zip Codes

What do the 9 digits of the zip codes mean...

In 1963 Zip Codes were introduced in the U.S. to improve mail delivery. Initially the zip code consisted of 5 numbers:

• the first three identify the state and portion of the state
• the last two a specific post office or zone

In 1983 (yes almost 27 years ago), a nine-digit code was introduced adding a hyphen to the original 5 numbers and 4 more numbers, to further speed delivery with the more sophisticated sorting equipment. The new 4 numbers indicate:

• the first two added digits specify a particular "sector,"
• the last two an even smaller "segment" (e.g., one side of a city block, or a single floor or portion of a floor in a large building).

Using the proper 9 digits will speed your mail delivery. To find the correct zip code, go to the post office website usps.com or simply click in the link below and save it to your favorites…

www.zip4.usps.com/zip4/welcome.jsp