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:
- Unique address: Big organisations like Hospitals, universities, Government agencies and businesses that receives a lot of mails uses unique zip codes.
- PO Box only
- Military
- 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:
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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.
| STATE | ZIP RANGE |
| Alabama | 35004 to 36925 |
| Alaska | 99501 to 99950 |
| Arizona | 85001 to 86556 |
| Arkansas | 71601 to 72959 |
| California | 90001 to 96162 |
| Colorado | 80001 to 81658 |
| Connecticut | 06001 to 06928 |
| Delaware | 19701 to 19980 |
| Florida | 32003 to 34997 |
| Georgia | 30002 to 39901 |
| Hawaii | 96701 to 96898 |
| Idaho | 83201 to 83877 |
| Illinois | 60001 to 62999 |
| Indiana | 46001 to 47997 |
| Iowa | 50001 to 52809 |
| Kansas | 66002 to 67954 |
| Kentucky | 40003 to 42788 |
| Louisiana | 70001 to 71497 |
| Maine | 03901 to 04992 |
| Maryland | 20588 to 21930 |
| Massachusetts | 01001 to 05544 |
| Michigan | 48001 to 49971 |
| Minnesota | 55001 to 56763 |
| Mississippi | 38601 to 39776 |
| Missouri | 63001 to 65899 |
| Montana | 59001 to 59937 |
| Nebraska | 68001 to 69367 |
| Nevada | 88901 to 89883 |
| New Hampshire | 03031 to 03897 |
| New Jersey | 07001 to 08989 |
| New Mexico | 87001 to 88439 |
| New York | 00501 to 14925 |
| North Carolina | 27006 to 28909 |
| North Dakota | 58001 to 58856 |
| Ohio | 43001 to 45999 |
| Oklahoma | 73001 to 74966 |
| Oregon | 97001 to 97920 |
| Pennsylvania | 15001 to 19640 |
| Rhode Island | 02801 to 02940 |
| South Carolina | 29001 to 29945 |
| South Dakota | 57001 to 57799 |
| Tennessee | 37010 to 38589 |
| Texas | 73301 to 88595 |
| Utah | 84001 to 84791 |
| Vermont | 05001 to 05907 |
| Virginia | 20101 to 24658 |
| Washington | 98001 to 99403 |
| West Virginia | 24701 to 26886 |
| Wisconsin | 53001 to 54990 |
| Wyoming | 82001 to 83414 |
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.
CONCLUSION
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.