| Labour | |
| Conservative | |
| Liberal Democrat | |
| Scottish National Party | |
| Reform UK | |
| Plaid Cymru | |
| Green Party | |
| Sinn Féin | |
| Democratic Unionist Party | |
| Social Democratic & Labour Party | |
| Alliance Party of Northern Ireland | |
| Ulster Unionist Party | |
| Traditional Unionist Voice | |
| Independent | |
| Speaker |
See archive map for pre-2024 data