What is swords Co Dublin postal code?

SWords is outside the Dublin postal region and does not have a postcode. The correct address would be SWords, Co. Dublin. At present only the city of Dublin and some surrounding districts have postal codes which are numbered from 1-24 (with one additional one which is a small area known as Dublin 6W). They are often shown in the format D2, D5, D17, etc at the end of an address. The creation of a nationwide postal code system for the Republic of Ireland is currently under discussion.