The 2023 election to Lisburn and Castlereagh City Council was held on 18 May 2023, alongside other local elections in Northern Ireland, two weeks after local elections in England. The Northern Ireland elections were delayed by 2 weeks to avoid overlapping with the coronation of King Charles III.
The election returned 40 members to the council via Single Transferable Vote. This consisted of 14 Democratic Unionist Party members (who topped the polls in three districts: Castlereagh East, Downshire East and Lisburn South), 13 Alliance Party members (who topped the polls in two districts: Castlereagh South and Downshire West), 6 Ulster Unionist Party members, 4 Sinn Féin members (who topped the polls in two districts: Killultagh and Lisburn North), 2 Social Democratic and Labour Party members and 1 Independent member.
Election results
| colspan="2" style="background-color:#f2f2f2;text-align:center;margin-bottom:-1px;border:1px solid #aaa;padding:.2em .4em" | Total | style="text-align:right;" | 40
| style="text-align:right;" | 56,404 |<noinclude>
Note: "Votes" are the first preference votes.
Districts summary
|- class="unsortable" align="centre" !rowspan=2 align="left"|District Electoral Area (DEA) ! % !Cllrs ! % !Cllrs ! % !Cllrs ! % !Cllrs ! % !Cllrs ! % !Cllrs !rowspan=2|Totalcllrs |- class="unsortable" align="center" !colspan=2 bgcolor="" | DUP !colspan=2 bgcolor="" | Alliance !colspan=2 bgcolor="" | UUP !colspan=2 bgcolor="" | Sinn Féin !colspan=2 bgcolor=""| SDLP !colspan=2 bgcolor="white"| Independents and others |- |align="left"|Castlereagh East |bgcolor="#D46A4C"|50.92 |bgcolor="#D46A4C"|3 |30.78 |2 |9.03 |1 |0.00 |0 |0.00 |0 |9.28 |0 |6 |- |align="left"|Castlereagh South |15.05 |1 |bgcolor="#F6CB2F"|32.36 |bgcolor="#F6CB2F"|3 1 |7.46 |0 1 |21.61 |2 1 |17.05 |1 |6.92 |0 1 |7 |- |align="left"|Downshire East |bgcolor="#D46A4C"|41.34 |bgcolor="#D46A4C"|2 |30.06 |2 1 |17.47 |1 1 |0.00 |0 |4.51 |0 |5.73 |0 |5 |- |align="left"|Downshire West |bgcolor="#D46A4C"|40.19 |bgcolor="#D46A4C"|2 |36.62 |2 1 |17.26 |1 1 |4.21 |0 |0.00 |0 |1.73 |0 |5 |- |align="left"|Killultagh |bgcolor="#D46A4C"|33.49 |bgcolor="#D46A4C"|2 |22.22 |1 |15.66 |1 |23.36 |1 |4.34 |0 |0.93 |0 |5 |- |align="left"|Lisburn North |bgcolor="#D46A4C"|26.47 |bgcolor="#D46A4C"|1 1 |23.61 |1 |13.65 |1 1 |14.67 |1 1 |11.07 |1 |10.54 |1 1 |6 |- |align="left"|Lisburn South |bgcolor="#D46A4C"|38.20 |bgcolor="#D46A4C"|3 |23.81 |2 1 |19.95 |1 1 |6.58 |0 |6.30 |0 |5.16 |0 |6 |- class="unsortable" class="sortbottom" style="background:#C9C9C9" |align="left"| Total |34.02 |14 1 |28.48 |13 4 |13.97 |6 5 |10.98 |4 2 |6.69 |2 |5.87 |1 |40
District results
Castlereagh East
2019: 3 x DUP, 2 x Alliance, 1 x UUP
2023: 3 x DUP, 2 x Alliance, 1 x UUP
2019–2023 Change: No change
Castlereagh South
2019: 2 x Alliance, 1 x DUP, 1 x SDLP, 1 x Sinn Féin, 1 x UUP, 1 x Green
2023: 3 x Alliance, 2 x Sinn Féin, 1 x DUP, 1 x SDLP
2019–2023 Change: Alliance and Sinn Féin gain from Green and UUP
Downshire East
2019: 2 x DUP, 2 x UUP, 1 x Alliance
2023: 2 x DUP, 2 x Alliance, 1 x UUP
2019–2023 Change: Alliance gain from UUP
Downshire West
2019: 2 x DUP, 2 x UUP, 1 x Alliance
2023: 2 x DUP, 2 x Alliance, 1 x UUP
2019–2023 Change: Alliance gain from UUP
Killultagh
2019: 2 x DUP, 1 x Alliance, 1 x UUP, 1 x Sinn Féin
2023: 2 x DUP, 1 x Sinn Féin, 1 x Alliance, 1 x UUP
2019–2023 Change: No change
Lisburn North
2019: 2 x DUP, 2 x UUP, 1 x Alliance, 1 x SDLP
2023: 1 x DUP, 1 x Alliance, 1 x Sinn Féin, 1 x UUP, 1 x SDLP, 1 x Independent
2019–2023 Change: Sinn Féin and Independent gain from DUP and UUP
Lisburn South
2019: 3 x DUP, 2 x UUP, 1 x Alliance
2023: 3 x DUP, 2 x Alliance, 1 x UUP
2019–2023 Change: Alliance gain from UUP
Changes during the term † Co-options Date co-optedElectoral AreaPartyOutgoingCo-opteeReason5 August 2024Castlereagh South Michelle GuyJamie HarpurGuy was co-opted to the Northern Ireland Assembly.1 November 2024Lisburn North Paul BurkeDeclan LynchBurke resigned.21 March 2025Lisburn South Peter KennedyJessica BamfordKennedy resigned.29 May 2025Castlereagh South Nancy EatonBronagh MageeEaton resigned.
Notes
References