[1][2] There are 60 seats in the Seanad: 43 were elected on five vocational panels by serving politicians, for which polling closed on 26 April; 6 were elected in two university constituencies, for which polling closed on 27 April; and 11 were nominated by the Taoiseach (Enda Kenny) on 20 May 2011.

[4] It remained in office until the close of poll for the 25th Seanad in April 2016.

On 25 May 2011, Paddy Burke (FG) was elected as the new Cathaoirleach of the Seanad.

The following table shows the composition by party when the 24th Seanad first met on 25 May 2011.

This table shows the political composition of the 24th Seanad at the start and the end of its term.