International Zip Code Formats

CSV file: verified and up-to-date

This file contains the ZIP code formats for over 200 countries and their corresponding regular expression (Regex) patterns. You can use these Regex patterns to validate whether a given postal code adheres to the correct format for each country.

Implementing these patterns can help prevent users from entering invalid postal codes, ensure smoother shipping processes, and reduce errors in address validation.

Here is a sample of the data:

ISO Country Sovereign Zip format Zip name Regex
AF Afghanistan AF 9999 Postal code \d{4}
AX Åland FI 99999 Postnummer \d{5}
AL Albania AL 9999 Kodi Postar \d{4}
DZ Algeria DZ 99999 Code postal \d{5}
AS American Samoa US "96799" ZIP code 96799
AD Andorra AD AD999 Postal code AD\d{3}
AO Angola AO - -  
AI Anguilla GB "AI-2640" Postcode AI\-\d{4}
AG Antigua and Barbuda AG - - -
AR Argentina AR A9999 AAA CPA [A-Z]\d{4}\s[A-Z]{3}
AM Armenia AM 9999 Փոստային ինդեքս \d{4}
AW Aruba NL - -  
AU Australia AU 9999 Postcode \d{4}

FAQ

What is the correct format for ZIP Code?

The correct format for a ZIP code in the United States is a five-digit number. However, there are also ZIP+4 codes, which include an additional four digits, providing more precise location information. The basic five-digit format consists of the first five digits, while the ZIP+4 format extends to nine digits, denoting a more specific area or location within the standard ZIP code area. The structure helps facilitate mail sorting and delivery accuracy, allowing for more precise geographic identification within regions.

Do international zip codes have letters?

Yes, in many countries, international postal codes can include both letters and numbers. These alphanumeric postal codes are used to help sort and deliver mail efficiently within specific regions or areas.

For instance:

  • The United Kingdom uses a postal expedition code system that consists of alphanumeric characters (e.g., AA9 9AA).

  • Canada's post office also use alphanumeric postal zone numbers (e.g., A9A 9A9).

  • Many other countries across Europe and around the world have postal code systems that may include letters and numbers to denote specific geographic areas for mail delivery.

The combination of letters and numbers in international postal codes allows for a more detailed and precise identification of locations, aiding postal services in accurately sorting and delivering mail to the intended destinations. 

What are the extra 4 digits after my ZIP Code?

The additional four digits following a ZIP Code in the United States are part of the ZIP+4 system. They provide more precise location information on postal zones, aiding in mail sorting and delivery.

What is a correctly formatted postal code?

A correctly formatted postal addressing code varies by country and postal services. For instance, a correctly formatted postal code in the UK might look like "AA9 9AA," while in Germany, it could appear as "10178." Each country has its specific structure and format for postal codes.