Portlaoise has a population of 23,494, making it the 17th largest place we list in Ireland. It is in Leinster.
Portlaoise holds 0.44% of Ireland's 5,356,950 people. Dublin, the largest place we list there, is 44 times its size.
23,494
population
#17
in Ireland
The population, measured on the census's boundary
| What you mean | Population | Source |
|---|---|---|
| Portlaoise the CSO Built Up Area: the continuously built-up town | 23,494 | Census 2022 |
| Portlaoise (GeoNames record) the figure in this page's heading; boundary unstated | 23,494 | GeoNames |
The census figure is the CSO's Census 2022 count for the Built Up Area, the boundary the CSO itself reports town populations on (data: CSO and Tailte Éireann, CC BY 4.0). Where the rows disagree, quote the census.
Portlaoise is in Leinster, which has 256 recorded places.
Nearby in size
| Place | Region | Population |
|---|---|---|
| Carlow | Leinster | 27,351 |
| Douglas | Munster | 26,883 |
| Tralee | Munster | 26,079 |
| Athlone | Leinster | 22,869 |
| Droichead Nua | Leinster | 22,742 |
| An Muileann gCearr | Leinster | 22,667 |
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.