Below are lists of Sinn Fein target seats showing which constituencies can be most easily won from an opposing party relative to the latest elections.
Below is the list of Sinn Fein 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 Sinn Fein held marginal seats vulnerable at the next general election.
(order by percentage majority)
| Rank | Constituency | Region | Majority | Swing Needed | |
|---|---|---|---|---|---|
| 1. | Upper Bann | Northern Ireland | 8,210 | 8.20% | |
| 2. | Londonderry East | Northern Ireland | 9,637 | 12.26% | |
| 3. | Antrim North | Northern Ireland | 15,228 | 17.28% | |
| 4. | Antrim South | Northern Ireland | 10,262 | 17.62% | |
| 5. | Foyle | Northern Ireland | 17,110 | 18.15% | |
| 6. | Antrim East | Northern Ireland | 14,751 | 21.59% | |
| 7. | Lagan Valley | Northern Ireland | 18,488 | 26.40% | |
| 8. | Strangford | Northern Ireland | 17,150 | 26.89% | |
View Sinn Fein held marginal seats vulnerable at the next general election.
