Eircode

Ireland Eircodes

Q: What is the eircode format in Ireland?

Ireland Eircodes follow the pattern @@@ @@@@ (# = digit, @ = letter). Examples: A65 F4E2.

Q: What regex validates Ireland Eircodes?

^(?:[\dA-Z]{3} ?[\dA-Z]{4})$ matches the official format (from Google's address metadata). It checks the shape only; whether a code exists needs a lookup in a postal code database such as the zipcodestack API.

Ireland Eircodes have the format @@@ @@@@, for example A65 F4E2. zipcodestack has 160 Eircodes for Ireland in 4 countys.

Format: @@@ @@@@
Example: A65 F4E2
Codes in our database: 160
Local name: Eircode

Ireland eircode format

Pattern	@@@ @@@@ (# digit, @ letter)
Examples	A65 F4E2
Regex	`^(?:[\dA-Z]{3} ?[\dA-Z]{4})$`
Official lookup	finder.eircode.ie

Format and regex from Google's address metadata (libaddressinput). The regex checks the shape of a code, not whether it exists.

Eircode Routing Keys by county

County	Range	Codes
Connacht	F12 – N41	18
Leinster	A41 – Y35	68
Munster	E21 – X91	43
Ulster	A75 – H23	10

Eircode Routing Keys of the largest cities

These lists show Eircode routing keys, the first three characters (e.g. D02). Each full Eircode identifies a single address.

Dublin A94 + 18 more Cork T12 + 2 more Limerick V94

Neighbouring countries

🇬🇧 United Kingdom@# #@@|@## #@@|@@# #@@|@@## #@@|@#@ #@@|@@#@ #@@|GIR0AA

Ireland Eircodes: FAQ

What is the eircode format in Ireland?

Ireland Eircodes follow the pattern @@@ @@@@ (# = digit, @ = letter). Examples: A65 F4E2.

What regex validates Ireland Eircodes?

^(?:[\dA-Z]{3} ?[\dA-Z]{4})$ matches the official format (from Google's address metadata). It checks the shape only; whether a code exists needs a lookup in a postal code database such as the zipcodestack API.

What is the eircode of Dublin?

Dublin has 19 Eircodes, starting with A94. The right one depends on the street; see the full list for Dublin.

How many Eircodes are there in Ireland?

The zipcodestack database contains 160 Eircodes for Ireland, each with place name, region and coordinates.

Postal code API

Look up Ireland Eircodes by API

zipcodestack looks up, validates and searches postal codes in 149 countries: city, state, coordinates, distances and radius search, as JSON.

/v1/search documentation International postal code API All documentation

300 free requests every month. No credit card required.

GET https://api.zipcodestack.com/v1/search?codes=A65+F4E2&country=ie

{
  "results": {
    "A65 F4E2": [{
      "postal_code": "A65 F4E2",
      "country_code": "IE",
      "city": "…",
      "state": "…",
      "latitude": …,
      "longitude": …
    }]
  }
}

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