About Dún Laoghaire
Dún Laoghaire is a city in Leinster, Ireland with a population of 31,239. It is the 12th largest of the 40 cities of 15,000 or more listed in Ireland, and the 17,376th largest worldwide. It lies 9 km from Dublin.
Key Facts
Country
Region
Rank in region
#8of 28
Coordinates
53.294, -6.136
Record updated
14 June 2026
Entry edited, not measured
City population, GeoNames. GeoNames publishes no year for its population figures, so “record updated” is when the entry was last edited — not the date the population was measured. Elevation is modelled from a digital elevation model rather than surveyed, so it is approximate.
Nearby Cities
All 40 in IrelandClosest listed cities by great-circle distance from the city centre.