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Heads of state
People born in Ireland (9)
People born in Ireland (9)
Most populous cities
| Dublin | 1,024,027 |
| Cork | 190,384 |
| Dún Laoghaire | 185,400 |
| Luimneach | 90,054 |
| Gaillimh | 70,686 |
| Tallaght | 64,282 |
| Waterford | 47,904 |
| Drogheda | 33,441 |
| Dundalk | 33,428 |
| Bray | 32,317 |
| Swords | 29,816 |
| Navan | 24,545 |
| Ennis | 24,427 |
| Tralee | 22,941 |
| Kilkenny | 21,589 |
| Blackrock | 20,701 |
| Naas | 20,554 |
| Sligo | 20,228 |
| Carlow | 20,055 |
| Droichead Nua | 18,860 |
| Celbridge | 18,167 |
| Loch Garman | 17,708 |
| Cluain Meala | 17,394 |
| An Muileann gCearr | 17,262 |
| Letterkenny | 16,901 |
| Athlone | 15,951 |
| Leixlip | 15,729 |
| Malahide | 14,057 |
| Portlaoise | 13,622 |
| Carrigaline | 12,902 |
| Castlebar | 12,874 |
| Greystones | 12,260 |
| Tullamore | 11,575 |
| Maynooth | 11,318 |
| Balbriggan | 11,293 |
| Arklow | 10,622 |
| Cobh | 10,501 |
| Wicklow | 10,461 |
| Ballina | 10,087 |
| Skerries | 10,014 |
| Derry | 10,000 |
| Enniscorthy | 9,709 |
| Mallow | 9,495 |
| Trá Mhór | 9,164 |
| Midleton | 8,891 |
| Shannon | 8,781 |
| Portmarnock | 8,037 |
| Longford | 7,787 |
| Thurles | 7,588 |
| Dungarvan | 7,551 |
Institutions owning art
Administrative divisions
Below are the first-level administrative divisions for this nation.| Name | Division type | Population |
| Connaught | 500,000 | |
| Leinster | 2,292,939 | |
| Munster | 1,172,170 | |
| Ulster | 250,000 |