Country referenceIreland country page

Ireland Postal Code Format

A country-level reference for how postal and ZIP codes are structured in Ireland.

Postal format
IE
Validation pattern
^[AaC-Fc-fHhKkNnPpRrTtV-Yv-y]\d[0-9Ww][ -]?[0-9AaC-Fc-fHhKkNnPpRrTtV-Yv-y]{4}$
Examples
D6W1234, A23 0984, D00-AV92

Postal formats and validation patterns are country-level references. Individual delivery rules can vary by carrier and address type.

Frequently asked questions

What is the postal code format for Ireland?

The postal code format for Ireland is IE. This is a country-level reference for how postal and ZIP codes are structured.

What does a valid Ireland postal code look like?

Examples of Ireland postal codes include D6W1234, A23 0984, D00-AV92. Individual delivery rules can still vary by carrier and address type.

How can I validate a Ireland postal code?

This page publishes the country's validation pattern, shown above. You can use it to check that a code looks right for Ireland, though it does not confirm that a specific address exists.

What is the difference between a postal code and a ZIP code?

ZIP code is the specific name for the postal code system used in the United States. Other countries call them postcodes, PIN codes, or postal codes. They all serve the same purpose: routing mail to the right delivery area.

Why do postal code formats differ between countries?

Each postal service designs its own code to match its geography and mail volume. Some use numeric-only codes, while others mix letters and digits, which is why the format for Ireland is its own national standard.