Constituency profiles and predictions - check yours
Carlow-Kilkenny: No change.
Cavan-Monaghan: Drops from a five- to a four-seater, with a chunk of west Cavan from Arvagh over to Glangevlin with a population of 13,183 moving to Sligo-Leitrim.
Cork East: No change
Cork North-Central: Gains a significant portion of neighbouring Cork South-Central with a transfer of 17,307 people, while losing a third of that number. No change in the number of TDs as the extra population is required to keep it a four-seater.
Cork North-West: Gains 5,048 people in four electoral divisions from Cork North-Central to keep its current status as a three-seater.
Cork South-Central: The most significant change in the Cork area: this constituency loses a seat as a result of a large slice of territory around Bishopstown being transferred to Cork North-Central.
Cork South-West: No change
Donegal: Massive changes with the creation of a new five-seater instead of the existing two three-seaters. Was a single eight-seat constituency from 1923 until 1933 but has been divided in two since then. Nine electoral divisions containing 8,779 people in the south of the county around Ballyshannon are transferred to Sligo-Leitrim.
Dublin Bay North: A new constituency created by the merger of two three-seaters, North Central and North East, which stretches from Donnycarney to Ireland’s Eye. A piece of territory around Portmarnock containing 9,549 people has been transferred to Dublin Fingal, but otherwise it’s a merger of the two old constituencies.
Dublin Bay South The old Dublin South East constituency gets a population infusion of 12,563 from Dublin South Central, with a swathe of Terenure and Kimmage being transferred to keep it a four-seater.
Dublin Central: Further big changes in the constituency of former taoiseach Bertie Ahern, which went from a five- to a four-seater last time around. It has now lost another seat, along with the transfer of chunks of territory to Dublin West and North West. The famous landmark of St Luke’s, recently sold, is now barely in the constituency.
Dublin Fingal: The old Dublin North has gained territory containing 26,840 people and an extra seat. The transfer of a large area around Swords from Dublin West means the town and its environs are now reunited in the same constituency.
Dublin Mid-West: No change
Dublin North-West: A transfer of 11,056 people from Dublin Central was necessary to keep the constituency up to the population required for a three-seater.
Dublin Rathdown: Probably the biggest shock in the entire revision is the cutting down to size of the old Dublin South. It had been a five-seater for the past 30 years, but has now been renamed after the old barony and reduced to a three-seater. Over 13,000 people in the Leopardstown, Foxrock, Cabinteely area have been moved back to Dún Laoghaire, while almost 40,000 people living in a stretch from Ballyboden to Rathfarnham move to Dublin South West.
Dublin South-Central: Loses a seat because a chunk of its territory has gone to shore up neighbouring Dublin Bay South.
Dublin South-West: The infusion of population from Dublin Rathdown makes this a five-seater.
Dublin West: Loses over 17,000 people to Dublin Fingal around Swords but gains over 13,000 from Dublin Central around Ashtown and the Navan Road to keep it a four-seater.
Dún Laoghaire: Retains its four seats with the addition of areas along the Stillorgan Road it lost to Dublin Rathdown in the last revision.
Galway East: One of the most extensive redrawings, with the constituency losing a seat and 20,521 people to the new Roscommon-Galway. The town of Ballinasloe is no longer in Galway East.
Galway West: Retains its five seats but a slice of south Mayo around Ballinrobe with a population of over 10,000 has been moved into the constituency to keep it a five-seater.
Kerry: Two three-seaters are merged into a new five-seat constituency. The county was one constituency up to 1933 but has been split since then. A large part of Co Limerick was attached to North Kerry in the last revision but county boundaries have now been restored.
Kildare North: Loses a small slice of territory to Kildare South but remains a four-seat constituency.
Kildare South: Remains a three-seater while losing over 7,000 people to the new Laois constituency.
Laois: One of the big changes in the revision. Laois becomes a constituency in its own right for the first time in the history of the State due to the huge increase in population. It only required a small slice of Kildare South to give it the required population for a three-seater.
Limerick City: Remains a four-seater with the addition of 11,197 people from the adjacent part of the county around Castleconnell, Cappamore and Caherconlish.
Limerick County: The 18 electoral divisions with a population of 13,352 that were annexed to Kerry North in the last revision have been reunited with Limerick. Will remain a three- seater.
Longford-Westmeath No change
Louth No change
Mayo: One of the big surprises is the loss of a seat in the Taoiseach’s constituency to make this a four-seater, with the area around Ballinrobe transferring to Galway West.
Meath East: No change.
Meath West: No change
Offaly: Hived off from the rapidly expanding Laois, it becomes a single-county constituency for the first time, but requires a chunk of Tipperary to give it the required population for a three-seater. In the last revision, part of Offaly was transferred to Tipperary but the reverse has occurred this time, with 24 electoral divisions with a population of almost 11,000 in the area north of Nenagh, including the town of Borrisokane, being included in Offaly.
Roscommon-Galway: The change here is that a portion of east Galway has been attached to Roscommon in place of south Leitrim.
Sligo-Leitrim: The people of Leitrim have got their wish to have the county reunited as part of a new Sligo-Leitrim configuration as a four-seater. The addition of west Cavan and south Donegal has added a new dimension to the constituency.
Tipperary: It was a single constituency until 1948. It is now back as a five-seater but is missing a slice in the northern part of the county, which has gone to Offaly.
Waterford: A small portion of Waterford south of Clonmel, which was part of the old South Tipperary constituency, has returned to the county.
Wexford: No change
Wicklow: No change