Electoral (Amendment) Act 2005

The Electoral (Amendment) Act 2005 (No. 16/2005) was a law in Ireland which provided for parliamentary constituencies for the 30th Dáil Éireann. The 30th Dáil was elected at the 2007 general election on 24 May 2007.
This Act replaced the Electoral (Amendment) (No. 2) Act 1998, which defined the constituencies used for the 29th Dáil (elected in 2002). It was itself replaced by the Electoral (Amendment) Act 2009, which created a new pattern of constituencies when the 30th Dáil was dissolved.
The Act was challenged in the High Court by Finian McGrath TD and former TD Catherine Murphy on the grounds that it left too many constituencies under or over-represented. However the High Court rejected the challenge.
Summary of changes.
This list, and those below, summarises the changes in representation. It does not address revisions to the boundaries of constituencies.
List of constituencies for the 30th Dáil.
"Explanation of columns
Note : Laois–Offaly is the same constituency as Leix–Offaly 1921–1961 and Laoighis–Offaly from 1961. Only the spelling of the first county name, in the legislation providing for parliamentary constituencies, has changed. There is no change in the number of seats from the previous constituency.