| Name | labels | status | parallel or principal name | code | country | adm1 | adm2 | adm3 |
| Carlow |
en | P | = Ceatharlach | a2 | IE | L | CW | |
| Cavan |
en | P | = An Cabhán | a2 | IE | U | CN | |
| Clare |
en | P | = An Clár | a2 | IE | M | CE | |
| Cork |
en | P | = Corcaigh | a2 | IE | M | CO | |
| Donegal |
en | P | = Dún na nGall | a2 | IE | U | DL | |
| Dublin |
en | P | = Baile Átha Cliath | a2 | IE | L | D | |
| Galway |
en | P | = Gaillimh | a2 | IE | C | G | |
| Kerry |
en | P | = Ciarraí | a2 | IE | M | KY | |
| Kildare |
en | P | = Cill Dara | a2 | IE | L | KE | |
| Kilkenny |
en | P | = Cill Chainnigh | a2 | IE | L | KK | |
| Laois |
ga, en | P | a2 | IE | L | LS | ||
| Leitrim |
en | P | = Liatroim | a2 | IE | C | LM | |
| Limerick |
en | P | = Luimneach | a2 | IE | M | LK | |
| Longford |
en | P | = An Longfort | a2 | IE | L | LD | |
| Louth |
en | P | = Lú | a2 | IE | L | LH | |
| Mayo |
en | P | = Maigh Eo | a2 | IE | C | MO | |
| Meath |
en | P | = An Mhí | a2 | IE | L | MH | |
| Monaghan |
en | P | = Muineachán | a2 | IE | U | MN | |
| Offaly |
en | P | = Uíbh Fhailí | a2 | IE | L | OY | |
| Roscommon |
en | P | = Ros Comáin | a2 | IE | C | RN | |
| Sligo |
en | P | = Sligeach | a2 | IE | C | SO | |
| Tipperary |
en | P | = Tiobraid Árann | a2 | IE | M | TA | |
| Waterford |
en | P | = Port Láirge | a2 | IE | M | WD | |
| Westmeath |
en | P | = An Iarmhí | a2 | IE | L | WH | |
| Wexford |
en | P | = Loch Garman | a2 | IE | L | WX | |
| Wicklow |
en | P | = Cill Mhantáin | a2 | IE | L | WW |