At present, the Republic of Ireland is the only state within the Organisation for Economic Co-operation and Development (OECD) that does not use a national postcode system. Almost a third of domestic properties have a postal address that is not unique, with many rural homes using only a townland and county address.

Does Ireland have postal codes?

Ireland is rare in the industrialized world in that it doesn't have postal codes—at all. In the countryside, some places don't have street names or house numbers even. ... The system will be far more detailed than other countries—in the US, zip codes can encompass whole towns.

Does Dublin Ireland have postal codes?

Dublin postal districts have been used by Ireland's postal service, known as An Post, to sort mail in Dublin. ... These were incorporated into a new national postcode system, known as Eircode, which was implemented in 2015.