Dún Laoghaire has a population of 31,239, making it the 12th largest place we list in Ireland. It is in Leinster.
Dún Laoghaire holds 0.58% of Ireland's 5,356,950 people. Dublin, the largest place we list there, is 33 times its size.
31,239
population
#12
in Ireland
Dún Laoghaire is in Leinster, which has 256 recorded places.
Nearby in size
| Place | Region | Population |
|---|---|---|
| Swords | Leinster | 40,776 |
| Navan | Leinster | 33,886 |
| Bray | Leinster | 33,512 |
| Ennis | Munster | 27,923 |
| Carlow | Leinster | 27,351 |
| Douglas | Munster | 26,883 |
All places in Ireland → · Leinster →
Figures are the latest available in GeoNames (CC BY 4.0), which draws on national censuses of varying dates — treat them as recent, not same-year. Country totals are UN World Population Prospects 2024 (medium variant) where the UN lists the country separately; the handful it reports under a parent state keep a GeoNames figure and are marked as such. Sources & method.