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
Elevation
16 m
Approximate — modelled, not surveyed
Time zone
Europe/Dublin
Coordinates
53.294, -6.136
Record updated
2026-06-14
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.