The Electoral (Amendment) Act 2023 is a law of Ireland to revise Dáil constituencies and European Parliament constituencies. The revised Dáil constituencies came into effect on the dissolution of the 33rd Dáil. The dissolution had to take place by 19 February 2025; however, the 2024 general election for the 34th Dáil occurred on 29 November. The revised European Parliament constituencies were used at the 2024 European Parliament election.
Constituency review reports The Electoral Commission was established on 9 February 2023. Under the Electoral Reform Act 2022, it was required to consider a revision of constituencies in light of the 2022 census. On 30 August 2023, the commission delivered a report in which it proposed several changes to Dáil constituencies, increasing the number of seats in the Dáil from 160 to 174, while increasing the number of constituencies from 39 to 43.
In June 2023, the European Parliament adopted a resolution to add an additional 11 MEPs. Ireland would gain one MEP under this arrangement, increasing from 13 to 14. This was adopted by the European Council in September 2023. The Electoral Commission recommended the additional seat be given to the constituency of Midlands–North-West, with the transfer of County Laois and County Offaly from South.
The Act implemented the recommendations of both these reports and repealed the Electoral (Amendment) (Dáil Constituencies) Act 2017, which had defined the constituencies in use since the 2020 general election.
Revised Dáil constituencies
ConstituencyCreatedSeats ± SeatsCarlow–Kilkenny19485 —Cavan–Monaghan19775 —Clare19214 —Cork East19814 —Cork North-Central19815 +1Cork North-West19813 —Cork South-Central19815 +1Cork South-West19613 —Donegal20165Dublin Bay North20165 —Dublin Bay South20164 —Dublin Central19814 —Dublin Fingal EastNext3 NewDublin Fingal WestNext3 NewDublin Mid-West20025 +1Dublin North-West19813 —Dublin Rathdown20164 +1Dublin South-Central19484 —Dublin South-West19815 —Dublin West19815 +1Dún Laoghaire19774 —Galway East19774 +1Galway West19375 —Kerry20165 —Kildare North19975 +1Kildare South19974 —LaoisNext3 NewLimerick City20114 —Limerick County20163 —Longford–Westmeath20075 +1Louth19235 —Mayo19975 +1Meath East20074 +1Meath West20073 —OffalyNext3 NewRoscommon–Galway20163 —Sligo–Leitrim20164 —Tipperary NorthNext3 NewTipperary SouthNext3 NewWaterford19234 —Wexford19214 -1Wicklow19234 -1Wicklow–WexfordNext3 New
European Parliament constituencies +ConstituencyAreaSeatsDublinThe counties of: Dún Laoghaire–Rathdown, Fingal and South Dublin; and the city of Dublin.4The counties of: Cavan, Donegal, Galway, Kildare, Laois, Leitrim, Longford, Louth, Mayo, Meath, Monaghan, Offaly, Roscommon, Sligo and Westmeath; and the city of Galway.5SouthThe counties of: Carlow, Clare, Cork, Kerry, Kilkenny, Tipperary, Wexford and Wicklow; the cities and counties of Limerick and Waterford; and the city of Cork.5
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