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Learn what a ZIP +4 Code is and how it helps the U.S. Postal Service deliver mail more efficiently. Find out how to locate your ZIP +4 Code and when to use it on forms and paperwork.

Cities by ZIP Code™ For more rapid delivery, please use the recommended or recognized city names whenever possible for this ZIP Code ™.

A ZIP+4 Code is a 4-digit code appended to a standard 5-digit ZIP that helps the USPS sort, route, and deliver mail more efficiently. The last 4 digits of these 9-digit ZIP Codes usually represent 6-20 delivery points on a USPS carrier route. Did we put you to sleep yet? Yeah, we thought so.

ZIP+4 code is a four-digit postal code that identifies a specific group of addresses or a geographic location within a five-digit ZIP code. Learn how ZIP+4 code improves mail delivery, reduces errors, and helps mailers qualify for bulk mailing discounts.

Find the full ZIP + 4® Code of a US Address with this tool. It also verifies and standardizes your address, and returns useful metadata such as census data and geo-coordinates.

Some still refer to ZIP codes as US postal codes. The term ZIP stands for Zone Improvement Plan. The basic 5-digit format was first introduced in 1963 and later extended to add an additional 4 digits after a dash to form a ZIP+4 code. The additional 4 digits help USPS more precisely group mail for delivery.

The standard format for writing a ZIP code is either five digits, or five digits followed by a hyphen and four additional digits. Examples would be: Five-digit ZIP code: 12345; ZIP+4 code: 12345-6789; It’s important to include the hyphen when writing a ZIP+4 code to ensure proper recognition by the mail system. ZIP+4 and the Future of Mail ...

If the last 4 digits of a ZIP code are wrong, it typically does not cause significant delivery issues. The mail will likely still be delivered correctly, but it might take slightly longer. The primary purpose of the +4 extension is to further refine the delivery location within a standard 5-digit zip code area. 7. Why is it sometimes necessary ...

In short, the extra four digits after your ZIP code are a further refinement of the geographic area designated by the initial five digits, pinpointing specific delivery routes, buildings, or even sides of a street. Understanding the ZIP+4: Precision in Mail Delivery. The ZIP+4 is essentially an extension of the basic five-digit

Remember, your ZIP code “with the extra 4 digits” is also better known as a ZIP+4 Code. Conclusion. The USPS provides a free ZIP+4 code lookup tool on their website that can be used to find accurate and up-to-date ZIP+4 codes for specific addresses. By using this tool, individuals and businesses can ensure that their mail is delivered to ...

ZIP+4 By the Numbers Today. Over 43,000 unique 5-digit ZIP code prefixes assigned in the US currently; For each 5-digit ZIP, average of 50-100+ ZIP+4 code suffixes created; That means well over 1 million distinct ZIP+4 codes now active; 75% of mail sent by businesses is sorted using 11-digit ZIP+4 codes

ZIP+4 Codes. Also called “plus-four codes”, “add-on codes”, or “add-ons”, the ZIP+4 code starts with the standard five-digit ZIP Code. The four extra numbers are added after a hyphen to complete the ZIP+4. So what do the extra numbers mean? These last 4 digits represent specific delivery routes within delivery areas.

The ZIP+4 code system, also known as the “plus-four code,” extended or full zip code, adds four additional digits to the standard ZIP code. The purpose is to narrow down a location within a delivery zip code area, possibly to a specific building, floor, or apartment suite.

A ZIP+4 code is an extension of the basic five-digit ZIP Code, adding four extra digits to provide a more precise geographical identifier. While a 5-digit ZIP Code designates a general delivery area, the ZIP+4 code pinpoints a specific segment within that area, such as a city block, a group of apartments, an individual business or high-volume ...

In 1983, the U.S. Postal Service introduced ZIP+4 ®, which adds four digits to the basic five-digit code as an extra identifier to improve the mail sorting and delivery process.ZIP+4 can help 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, for example.

Finding the last four digits of a zip code is a breeze with the USPS ZIP Code Lookup tool. By following the simple steps outlined above, you can quickly obtain the ZIP+4 code for any address in the United States, making sure your mail gets exactly where it needs to go.

A full zip code, often referred to as a ZIP+4 code, extends the standard five-digit ZIP code by adding four additional digits. This extension helps to narrow down the location further, often to a specific building, floor, or even a single post office box.

8. Should ZIP codes be 5 digits or 9 digits with a separating the ZIP 4? When using a ZIP+4 ZIP code, the number must consist of five digits, a hyphen, and four more digits. Improperly labeled mailpieces may progress slower through the mail system and may be returned to the sender if the USPS is unable to deliver them.

The ZIP+4 Code is a more detailed version of the regular ZIP Code system in the United States. Introduced by the USPS, it includes the basic five-digit ZIP Code followed by a hyphen and four additional digits.