| County | Population in 2006 | County in Irish |
| Donegal | 147,264 | Dún na nGall |
| Monaghan | 55,997 | Muineachán |
| Cavan | 64,003 | An Cabhán |
| Derry | 241,387 | Doire |
| Down | 536,045 | An Dun |
| Armagh | 236.987 | Ard Mhacha |
| Fermanagh | 60,570 | Fear Manach |
| Tyrone | 177,265 | Tír Eoghain |
| Antrim | 489,365 | Aontroim |
Population Statistics from CSO (IRE) & Office for National Statistics (UK)
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