Castledermot has a population of 1,475, making it the 273rd largest place we list in Ireland. It is in Leinster.
Castledermot holds under a tenth of one per cent of Ireland's 5,356,950 people. Dublin, the largest place we list there, is 694 times its size.
1,475
population
#273
in Ireland
The population, measured on the census's boundary
| What you mean | Population | Source |
|---|---|---|
| Castledermot the CSO Built Up Area: the continuously built-up town | 1,685 | Census 2022 |
| Castledermot (GeoNames record) the figure in this page's heading; boundary unstated | 1,475 | 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.
Castledermot is in Leinster, which has 256 recorded places.
Nearby in size
| Place | Region | Population |
|---|---|---|
| Moville | Ulster | 1,481 |
| Caherconlish | Munster | 1,476 |
| Graiguenamanagh | Leinster | 1,475 |
| Manorhamilton | Connacht | 1,466 |
| Lanesborough | Leinster | 1,454 |
| Portumna | Connacht | 1,450 |
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.