Dún Laoghaire Population 2026
Dún Laoghaire has a population of 31,239, making it the #12 biggest city in 🇮🇪 Ireland, located in Leinster. Roughly 0.6% of Ireland's population lives here. It is about 33× smaller than Dublin, the country's biggest city.
Population (city proper)
31,239
Rank in Ireland
#12
Coordinates
53.29°N, 6.14°W
~16 m elevation · Europe/Dublin
Distance to capital (Dublin)
9 km
6 miles, straight line
Other big cities in Leinster
Cities near Dún Laoghaire
FAQ
What is the population of Dún Laoghaire?
Dún Laoghaire has a population of 31,239 (city proper, latest official figure via GeoNames), making it the #12 biggest city in Ireland.
What region is Dún Laoghaire in?
Dún Laoghaire is located in Leinster, Ireland.
Is Dún Laoghaire the capital of Ireland?
No, the capital of Ireland is Dublin, about 9 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.
← All biggest cities in Ireland · Ireland population by year