In the Republic of Ireland, some counties have been split resulting in the creation of new counties: there are currently 26 counties, 3 cities and 2 cities and counties that demarcate areas of local government in the Republic. Next to that 6 counties are in Nothern Ireland.
- Antrim (Northern Ireland)
- Armagh (Northern Ireland)
- Carlow
- Cavan
- Clare
- Cork
- Donegal
- Down (Northern Ireland)
- Dublin
- Fermanagh (Northern Ireland)
- Galway
- Kerry
- Kildare
- Kilkenny
- Laois
- Leitrim
- Limerick
- Londonderry (Northern Ireland)
- Longford
- Louth
- Mayo
- Meath
- Monaghan
- Offaly
- Roscommon
- Sligo
- Tipperary
- Tyrone (Northern Ireland)
- Waterford
- Westmeath
- Wexford
- Wicklow