Below are lists of SDLP target seats showing which constituencies can be most easily won from an opposing party relative to the latest elections.
Below is the list of SDLP target seats for the 2025 general election. The list is ordered from the smallest to the largest swing needed for the seat to change hands.
View SDLP held marginal seats vulnerable at the next general election.
(order by percentage majority)
| Rank | Constituency | Region | Majority | Swing Needed | |
|---|---|---|---|---|---|
| 1. | Down South | Northern Ireland | 1,620 | 1.63% | |
| 2. | Newry and Armagh | Northern Ireland | 10,838 | 10.67% | |
| 3. | Tyrone West | Northern Ireland | 9,214 | 11.19% | |
| 4. | Londonderry East | Northern Ireland | 9,607 | 12.22% | |
| 5. | Ulster Mid | Northern Ireland | 14,089 | 15.79% | |
| 6. | Upper Bann | Northern Ireland | 15,878 | 15.86% | |
| 7. | Antrim North | Northern Ireland | 17,917 | 20.34% | |
| 8. | Strangford | Northern Ireland | 15,711 | 23.05% | |
| 9. | Belfast West | Northern Ireland | 17,881 | 23.05% | |
| 10. | Antrim South | Northern Ireland | 12,861 | 23.67% | |
| 11. | Antrim East | Northern Ireland | 15,969 | 24.86% | |
| 12. | Lagan Valley | Northern Ireland | 17,828 | 24.95% | |
| 13. | Fermanagh and South Tyrone | Northern Ireland | 18,540 | 36.41% | |
View SDLP held marginal seats vulnerable at the next general election.
