What Is A Postal Code?

For efficient postal operations, you must know what is a postal code. Our world map is pretty wide! Every place mentioned on the world map has its own postal code. So, in my today’s post, I will discuss everything about what is a postal code in detail. This concept is used for many years now. Here, I have even included the postal code for Texas, Ohio, and USA. Make sure you even check out the postal codes for a credit and debit card. Without wasting one more minute, let us learn what is a postal code and its importance in brief.

What Is A Postal Code?

In simple words, a postal code is a series of letters/digits, or sometimes both. It even includes spaces or punctuation. Postal codes are generally assigned to different geographical areas across the world. It is a high-integrity source of demographic information. However, this code is also assigned to individual addresses or institutions that receive a large number of mails. This includes government agencies and large commercial companies. For example, the French CEDEX system.

There are several synonyms for postal codes. Some of them are country-specific, have a look at them.

  • CAP
  • CEP
  • Eircode
  • NPA
  • PIN
  • PLZ
  • Postcode
  • Postal index
  • PSC
  • ZIP Code

However, ZIP code and PIN code is a standard terms in the United States and India respectively.

You can keep on reading to know what is a postal code on a debit card and credit card.

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Postal Codes On A Debit And Credit Card

Each debit and credit card has a zip code. This code is associated with the user’s billing address which is used as a security code. Both cards have a five-digit number. However, this postal code is not printed anywhere on the card or embedded within the card number. You have to remember this number and treat it as private information. For tasks like pumping gas, you have to enter your zip code before you make your purchase.

You can keep on reading to know more about what is a postal code.

History And Evolution Of The Postal Code

Postal codes were started with postal district numbers within large cities. However, by 1930, postal codes were extended in places beyond large cities covering small towns and rural locations. It helped to establish connections between people around the world. But today, postal codes have evolved into the foundation for the world’s shipping and logistics infrastructure.

In 1963, the United States government implemented the zoning improvement plan (ZIP) code. It was Robert A. Moon who invented the ZIP code in the United States. This program was established to make the transportation of mail across the continent easier. However, it came into existence following the post-World War. The ZIP code helped to move mail delivery away from railroads to trucks and airplanes. Later on, in 1967, about 65% of all US mail relied on ZIP codes.

After a few decades, it gained additional utility for data verification in insurance companies and banks. ZIP codes helped them to set rates on financial products and issue lines of credit.

United States ZIP codes consist of five numerical digits. Sometimes, it even includes additional four digits ZIP +4. These four digits are used to identify a geographic segment within a ZIP code delivery area. The ZIP code is often translated into intelligent mail barcodes for faster and easier sorting.

In ZIP code, the first digit represents a defined group of US states. While the second and third digits represent a region in that group like a large city.

Importance Of Postal Codes

Postal codes are very important in cases such as fraud prevention and information coordination. It helps the global shipping and logistics industry to ensure that packages reach their destination on time. With this, a business owner selling to an international audience can ship goods easily. During the COVID-19 pandemic, the Universal Postal Union took responsibility for data privacy and public education.

Let us now check out what is a postal code for Texas, Ohio, and USA.

Postal Codes Of Different Countries

In 1874, the Universal Postal Union (UPU) was established by the Treaty of Bern. It was introduced to facilitate the free exchange of global mail. Here, have a look at the postal codes for Texas, Ohio, and the USA.

  • Texas: 75015, 75047, 75132, 73344, 75030, 75097, 75016, 73301
  • Ohio: 43027, 43048, 43070, 43083, 43093, 43251, 43041, 43349
  • USA: 96898, 73001, 24658, 22240, 88439, 99621, 23482, 24038

Note: Use this link http://worldpostalcode.com to know what is my postal code.

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What Is An Example Of A Postal Code?

Data in a particular field might have several valid formats. 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.

Is A Postal Code A Zip Code?

A ZIP code is the term used to describe the postal code system in the United States. It is a series of numbers that communicates information about people within different geographic groupings.

Is Postal Code The Same As Postal Address?

A postal code (also known locally in various English-speaking countries throughout the world as a postcode, post code, PIN or ZIP Code) is a series of letters or digits or both, sometimes including spaces or punctuation, included in a postal address for the purpose of sorting mail.

Whats A Postal Code On A Card?

A credit card postal code is the ZIP code associated with a credit card’s billing address. That’s the address you provided on your application, unless you’ve since moved and updated your information. And it’s where you receive your statement every month, if you haven’t gone paperless.

How Do UK Postcodes Work?

It is a hierarchical system, working from left to right — the first letter or pair of letters represents the area, the following digit or digits represent the district within that area, and so on. Each postcode generally represents a street, part of a street, or a single premises.

What Is A US Postal Code?

A postal code is a set of specific numbers, and sometimes letters, that help postal services deliver mail. A five-digit number generally known as a Zip Code is important in making sure your package is delivered because it identifies a certain postal delivery area in the United States.

Is ZIP Code A Postal Code?

Zip code refers to a type of postal code and is used primarily in the United States and the Philippines. The postal code, however, is typically utilized by the rest of the countries scattered throughout the world.


In the above post, I have explained what is a zip postal code in detail. A postal code is a series of letters/digits, or sometimes both assigned to geographical areas. The infrastructure that we use today has been in the place from long before many of us were born! With the help of postal codes, the shipping and logistics infrastructure is possible. It helps them to identify, locate, and validate addresses. Basically, you can say it simplifies shipping. Postal codes even support identity verification processes to detect any fraudulent digital transactions. You are now ready to expand your shipping business by learning what is a postal code.


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