Below are lists of Green marginal seats showing which constituencies won in the latest elections can be most easily lost.
Historical
Below is the Green defence list consisting of Green held marginal seats for the 2029 general election based on the 2024 boundaries. These marginal constituencies are ordered from the most vulnerable seats to the safest.
| Rank | Constituency | Region | Majority | Swing to Defeat | |
|---|---|---|---|---|---|
| 1. | Waveney Valley | East of England | 5,594 | 5.70% | |
| 2. | Herefordshire North | West Midlands | 5,894 | 5.85% | |
| 3. | Bristol Central | South West | 10,407 | 12.00% | |
| 4. | Brighton Pavilion | South East | 14,290 | 13.65% |