List of Dublin postal districts
Dublin postal districts have been used by Ireland's postal service, known as An Post, to sort mail in Dublin. The system is similar to that used in cities in Europe and North America until they adopted national postal code systems in the 1960s and 1970s. These were incorporated into a new national postcode system, known as Eircode, which was implemented in 2015. Under the Eircode system, the city is covered by the original routing areas D01 to D24, along with A## and K## codes for locations elsewhere in the Dublin Region.