The canonical structure in Ireland, Europe, is such that you have the country first, the particular province next, then the county, the city if it exists, and lastly the town. However, the province is not usually used for postal or spoken reference.
The Provinces[]
Leinster, Ulster, Munster, Connacht.
The Counties including Northern Ireland.[]
County Antrim, County Armagh, County Carlow, County Cavan, County Clare, County Cork, County Derry, County Donegal, County Down, County Dublin, County Fermanagh, County Galway, County Kerry, County Kildare, County Kilkenny, County Laois, County Leitrim, County Limerick, County Longford, County Louth, County Mayo, County Meath, County Monaghan, County Offaly, County Roscommon, County Sligo, County Tipperary, County Tyrone, County Waterford, County Westmeath, County Wexford, County Wicklow.
(Records from the 19th century include "King's County" (modern ...) and "Queen's County" (modern ...). Those royalist names did not long survive the creation of the Irish Free State.)