| County | Population in 2006 | County in Irish |
| Dublin | 1,187,176 | Baile Átha Claith |
| Kildare | 186,335 | Cill Dara |
| Kilkenny | 87,558 | Cill Chainnigh |
| Wicklow | 126,194 | Cill Mhantáin |
| Wexford | 131,749 | Loch Garman |
| Laois | 67,059 | Laois |
| Meath | 162,831 | An Mhí |
| Westmeath | 79,346 | An Iarmhí |
| Offaly | 70,868 | Uíbh Fhailí |
| Louth | 111,267 | An Lú |
| Carlow | 50,349 | Ceatharlach |
| Longford | 34,391 | An Longfort |
Population Statistics from CSO
