Local by-elections 18 May 2023
Local by-elections 18 May 2023 was held on 18 May 2023. 461 seats were filled across 80 wards and divisions in 11 councils, from 804 candidates. Sinn Féin won 144, Democratic Unionist Party - D.U.P. won 122 and Alliance - Alliance Party of Northern Ireland won 67.
- Date
- 18 May 2023
- Seats filled
- 461
- Candidates
- 804
- Councils
- 11
| Party | Candidates | Seats won | Votes | Vote share |
|---|---|---|---|---|
| Sinn Féin | 162 | 144 | 230,793 | 31.0% |
| Democratic Unionist Party - D.U.P. | 151 | 122 | 172,814 | 23.2% |
| Alliance - Alliance Party of Northern Ireland | 110 | 67 | 99,251 | 13.3% |
| Ulster Unionist Party | 100 | 53 | 80,168 | 10.8% |
| SDLP (Social Democratic & Labour Party) | 86 | 39 | 64,996 | 8.7% |
| Independent | 56 | 19 | 34,396 | 4.6% |
| Traditional Unionist Voice - TUV | 45 | 9 | 28,780 | 3.9% |
| Green Party | 37 | 5 | 12,692 | 1.7% |
| People Before Profit Alliance | 16 | 2 | 8,059 | 1.1% |
| Progressive Unionist Party of Northern Ireland | 4 | 1 | 2,103 | 0.3% |
| Aontú | 19 | 0 | 6,771 | 0.9% |
| Irish Republican Socialist Party | 2 | 0 | 825 | 0.1% |
| Cross-Community Labour Alternative | 2 | 0 | 772 | 0.1% |
| The Workers Party | 7 | 0 | 678 | 0.1% |
| Conservative Party | 5 | 0 | 438 | 0.1% |
| Socialist Party (Northern Ireland) | 2 | 0 | 224 | 0.0% |
| Council | Wards / divisions | Seats filled | Largest party | Its seats |
|---|---|---|---|---|
| Antrim and Newtownabbey | 7 | 40 | Democratic Unionist Party - D.U.P. | 13 |
| Ards and North Down | 7 | 40 | Democratic Unionist Party - D.U.P. | 14 |
| Armagh City, Banbridge and Craigavon | 7 | 41 | Sinn Féin | 15 |
| Belfast | 10 | 60 | Sinn Féin | 22 |
| Causeway Coast and Glens | 7 | 40 | Democratic Unionist Party - D.U.P. | 13 |
| Derry City and Strabane | 7 | 40 | Sinn Féin | 18 |
| Fermanagh and Omagh | 7 | 39 | Sinn Féin | 21 |
| Lisburn and Castlereagh | 7 | 40 | Democratic Unionist Party - D.U.P. | 14 |
| Mid and East Antrim | 7 | 40 | Democratic Unionist Party - D.U.P. | 14 |
| Mid Ulster | 7 | 40 | Sinn Féin | 19 |
| Newry, Mourne and Down | 7 | 41 | Sinn Féin | 20 |
