List Of All States In the USA With Zip Code

Zip code is a 5 digit code that is found on the top right-hand side of a letter/package. There are 9,223 ZIP codes in the United States and each Zip code has a unique range of numbers.


In this article, I will be unveiling the list of all states in the USA with Zip Code, United States Postal codes, and all USA Postcodes by state.

What Is A Zip Code

A ZIP Code is a postal code used by the United States Postal Service (USPS). Introduced in 1963, the basic format consisted of five digits.

In 1983, an extended ZIP+4 code was introduced; it included the five digits of the ZIP Code, followed by a hyphen and four digits that designated a more specific location.


The term ZIP is an acronym for Zone Improvement Plan; it was chosen to suggest that the mail travels more efficiently and quickly (zipping along) when senders use the code in the postal address.

The term ZIP Code was originally registered as a service mark by the USPS; its registration expired in 1997.

Types of Zip Codes

There are four types of ZIP Codes:

  1. Unique address: Big organisations like Hospitals, universities, Government agencies and businesses that receives a lot of mails uses unique zip codes.
  2. PO Box only
  3. Military
  4. Standard (all other ZIP codes).

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Uses of Zip Codes

Zip code is very important in top world countries like the United States, Canada, United Kingdom and almost in every country of the world, zip code is very important in sending mail, delivery/ logistics fraud detection and research demographic decentralization.

Below are some major uses of zip/postal codes:

  • Mail services: This is the main use of zip codes and postal codes.
  • Delivery services: Used for internal routing of a package.
  • Statistics: For example, in the United State, there are over 42000 zip codes. Apart from delivery mails, zip codes are also used in gathering statistics.
  • Marketing(Zip-codes marketing)
  • Legislative districts
  • Internet purposes: You will often find zip code under most education or eCommerce website registration page.
  • Credit card security: Codes can also be used for credit card authorization.

USA Zip Code Map

ZIP code is a postal code system used in the United States of America by its Postal system known as the UPPS. ZIP basically means Zone Improvement Plan.

The concept of ZIP code was introduced to ensure that all the mails get delivered quickly and efficiently. ZIP code primarily consists of a five-digit number like 55416.

These five numbers are extended after putting a hyphen by 4 numbers, which is also called ZIP +4. For example 55416-4214.

The first digit of the ZIP code corresponds to the specific group of US states it belongs to.

The second and the third digit correspond to a specific region of the group state it belongs to.

Fourth and the fifth digit correspond to the delivery address group pertaining to that specific region.

Here is the image showing the United States Postal Code Map:

Zip code
The United States zip code vector map

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Complete List Of All States In the USA With Zip Code

There are more than 40,000 ZIP codes in the United States. To find a ZIP code, select the state in the list below. Another option is to use my ZIP code tool which will find your postcode based on your current location.

Alabama35004 to 36925
Alaska99501 to 99950
Arizona85001 to 86556
Arkansas71601 to 72959
California90001 to 96162
Colorado80001 to 81658
Connecticut06001 to 06928
Delaware19701 to 19980
Florida32003 to 34997
Georgia30002 to 39901
Hawaii96701 to 96898
Idaho83201 to 83877
Illinois60001 to 62999
Indiana46001 to 47997
Iowa50001 to 52809
Kansas66002 to 67954
Kentucky40003 to 42788
Louisiana70001 to 71497
Maine03901 to 04992
Maryland20588 to 21930
Massachusetts01001 to 05544
Michigan48001 to 49971
Minnesota55001 to 56763
Mississippi38601 to 39776
Missouri63001 to 65899
Montana59001 to 59937
Nebraska68001 to 69367
Nevada88901 to 89883
New Hampshire03031 to 03897
New Jersey07001 to 08989
New Mexico87001 to 88439
New York00501 to 14925
North Carolina27006 to 28909
North Dakota58001 to 58856
Ohio43001 to 45999
Oklahoma73001 to 74966
Oregon97001 to 97920
Pennsylvania15001 to 19640
Rhode Island02801 to 02940
South Carolina29001 to 29945
South Dakota57001 to 57799
Tennessee37010 to 38589
Texas73301 to 88595
Utah84001 to 84791
Vermont05001 to 05907
Virginia20101 to 24658
Washington98001 to 99403
West Virginia24701 to 26886
Wisconsin53001 to 54990
Wyoming82001 to 83414
Complete List Of All States In the USA With Zip Code

Why Did USA Implemented The Postcodes System.

  • Zip Codes assist the postal system sort mail faster and quicker.
  • Postal code makes it easy to distribute mail.
  • It lets the system keep track of received and sent mails.


ZIP Codes are a system of postal codes used by the United States Postal Service since 1963.

The term ZIP, an acronym for Zone Improvement Plan, was chosen to suggest that the mail travels more efficiently, and therefore more quickly (zipping along), when senders use the code in the postal address.

The basic format consists of five numerical digits. An extended ZIP+4 code, introduced in 1983, includes the five digits of the ZIP Code, a hyphen, and four additional digits that determine a more specific location within a given ZIP Code.


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