2005 Castlereagh Borough Council election

Elections to Castlereagh Borough Council were held on 5 May 2005 on the same day as the other Northern Irish local government elections. The election used four district electoral areas to elect a total of 23 councillors.

Election results
Note: "Votes" are the first preference votes.

Districts summary
!rowspan=2 align="left"|Ward ! %
 * - class="unsortable" align="centre"

!Cllrs

! %

!Cllrs

! %

!Cllrs

! %

!Cllrs

! %

!Cllrs

!rowspan=2|Total Cllrs

!colspan=2 bgcolor="" | DUP !colspan=2 bgcolor="" | UUP !colspan=2 bgcolor="" | Alliance !colspan=2 bgcolor="" | SDLP !colspan=2 bgcolor="white"| Others
 * - class="unsortable" align="center"
 * align="left"|Castlereagh Central
 * bgcolor="#D46A4C"|54.4
 * bgcolor="#D46A4C"|4
 * 12.5
 * 1
 * 16.3
 * 1
 * 6.5
 * 0
 * 10.3
 * 0
 * 6
 * align="left"|Castlereagh East
 * bgcolor="#D46A4C"|59.2
 * bgcolor="#D46A4C"|5
 * 18.9
 * 1
 * 12.4
 * 1
 * 0.0
 * 0
 * 9.5
 * 0
 * 7
 * align="left"|Castlereagh South
 * bgcolor="#D46A4C"|36.7
 * bgcolor="#D46A4C"|2
 * 18.3
 * 1
 * 17.1
 * 1
 * 22.2
 * 0
 * 5.7
 * 0
 * 5
 * align="left"|Castlereagh West
 * bgcolor="#D46A4C"|34.1
 * bgcolor="#D46A4C"|2
 * 20.6
 * 1
 * 19.9
 * 1
 * 20.9
 * 1
 * 4.5
 * 0
 * 5
 * - class="unsortable" class="sortbottom" style="background:#C9C9C9"
 * align="left"| Total
 * 46.5
 * 13
 * 17.8
 * 4
 * 16.2
 * 4
 * 12.0
 * 2
 * 7.5
 * 0
 * 23
 * }
 * 7.5
 * 0
 * 23
 * }
 * }

Castlereagh Central
2001: 3 x DUP, 1 x Alliance, 1 x UUP, 1 x PUP

2005: 4 x DUP, 1 x Alliance, 1 x UUP

2001-2005 Change: DUP gain from PUP

Castlereagh East
2001: 4 x DUP, 1 x UUP, 1 x Alliance, 1 x Independent

2005: 5 x DUP, 1 x UUP, 1 x Alliance

2001-2005 Change: DUP gain from Independent

Castlereagh South
2001: 2 x UUP, 1 x DUP, 1 x SDLP, 1 x Alliance

2005: 2 x DUP, 1 x UUP, 1 x SDLP, 1 x Alliance

2001-2005 Change: DUP gain from UUP

Castlereagh West
2001: 2 x DUP, 1 x Alliance, 1 x SDLP, 1 x UUP

2005: 2 x DUP, 1 x Alliance, 1 x SDLP, 1 x UUP

2001-2005 Change: No change