Blackrock has a population of 5,000, making it the 138th largest place we list in Ireland. It is in Leinster.
Blackrock holds under a tenth of one per cent of Ireland's 5,356,950 people. Dublin, the largest place we list there, is 205 times its size.
5,000
population
#138
in Ireland
Blackrock is in Leinster, which has 256 recorded places.
Nearby in size
| Place | Region | Population |
|---|---|---|
| Carrigtwohill | Munster | 5,080 |
| Dollymount | Leinster | 5,070 |
| Carrickmacross | Ulster | 5,032 |
| Oranmore | Connacht | 4,990 |
| Tipperary | Munster | 4,979 |
| Ardee | Leinster | 4,928 |
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.