Labour Defence

Below are lists of Labour marginal seats showing which constituencies won in the latest elections can be most easily lost.

Labour Defence 2024

Below is the Labour defence list consisting of Labour held marginal seats for the 2024 general election. These marginal constituencies are ordered from the smallest to the largest swing to be defeated by the largest opposition party.

View Labour target seats for the next general election.

(order by percentage majority)

RankConstituencyRegionMajoritySwing to Defeat
1.Warrington SouthNorth West650.06%
2.Coventry North WestWest Midlands2080.22%
3.Kensington and BayswaterLondon3900.36%
4.Alyn and DeesideWales4110.39%
5.Wirral WestNorth West4550.41%
6.Beckenham and PengeLondon6310.52%
7.Heywood and Middleton NorthNorth West6800.80%
8.Dagenham and RainhamLondon7060.80%
9.Coventry SouthWest Midlands8080.86%
10.Sheffield HallamYorkshire and the Humber1,1080.92%
11.Warwick and LeamingtonWest Midlands1,1691.12%
12.BedfordEast of England1,1131.19%
13.Pontefract, Castleford and KnottingleyYorkshire and the Humber1,0821.31%
14.Doncaster CentralYorkshire and the Humber1,2711.38%
15.Rawmarsh and ConisbroughYorkshire and the Humber1,2571.55%
16.ChesterfieldEast Midlands1,4511.61%
17.Oldham East and SaddleworthNorth West1,4991.62%
18.Warrington NorthNorth West1,5131.63%
19.CanterburySouth East2,1601.89%
20.HalifaxYorkshire and the Humber1,9021.99%
21.Newport West and IslwynWales2,0012.06%
22.Cramlington and KillingworthNorth East2,1572.24%
23.Doncaster NorthYorkshire and the Humber2,0702.58%
24.Nottingham North and KimberleyEast Midlands2,4902.89%
25.GowerWales3,1812.93%
26.Leeds EastYorkshire and the Humber2,7233.06%
27.Leeds West and PudseyYorkshire and the Humber2,9633.09%
28.Wolverhampton South EastWest Midlands2,3733.10%
29.TynemouthNorth East3,5123.26%
30.Bradford SouthYorkshire and the Humber2,7293.34%
31.Croydon EastLondon3,4133.37%
32.Sunderland CentralNorth East2,9643.41%
33.Stalybridge and HydeNorth West2,9463.48%
34.Houghton and Sunderland SouthNorth East3,2713.65%
35.Hull EastYorkshire and the Humber2,4953.67%
36.RotherhamYorkshire and the Humber3,2973.79%
37.PutneyLondon4,4163.98%
38.Birmingham ErdingtonWest Midlands3,3053.98%
39.Worsley and EcclesNorth West3,9614.00%
40.Normanton and HemsworthYorkshire and the Humber3,5204.06%
41.LlanelliWales3,7934.32%
42.HartlepoolNorth East3,5954.38%
43.Barnsley NorthYorkshire and the Humber4,0024.50%
44.Durham, City ofNorth East4,6574.54%
45.Blaydon and ConsettNorth East4,2854.56%
46.Stockton NorthNorth East3,9724.61%
47.Washington and Gateshead SouthNorth East3,9384.61%
48.Durham NorthNorth East4,4244.63%
49.TorfaenWales4,1104.72%
50.Plymouth Sutton and DevonportSouth West5,1225.20%
51.BatterseaLondon6,0265.49%
52.MakerfieldNorth West4,9555.49%
53.Sheffield South EastYorkshire and the Humber5,2145.56%
54.Bristol North EastSouth West5,4645.59%
55.Newport EastWales5,2395.64%
56.Portsmouth SouthSouth East5,3635.65%
57.Ashton-under-LyneNorth West4,6895.67%
58.Chester North and NestonNorth West6,3915.93%
59.Runcorn and HelsbyNorth West5,7795.97%
60.Bristol North WestSouth West7,2356.19%
61.Leicester EastEast Midlands5,9996.22%
62.Barnsley SouthYorkshire and the Humber4,7206.29%
63.Newcastle upon Tyne NorthNorth East6,8236.30%
64.Leicester WestEast Midlands4,8826.32%
65.Hull North and CottinghamYorkshire and the Humber5,9226.59%
66.Luton South and Bedfordshire SouthEast of England6,0666.73%
67.Southampton TestSouth East6,2136.90%
68.Cardiff NorthWales7,5796.93%
69.Gateshead Central and WhickhamNorth East5,9117.03%
70.Derby SouthEast Midlands6,0197.09%
71.Blyth and AshingtonNorth East6,1187.12%
72.WiganNorth West6,7287.47%
73.HuddersfieldYorkshire and the Humber7,4417.54%
74.CaerphillyWales6,9017.66%
75.Lancashire WestNorth West8,3367.91%
76.Feltham and HestonLondon6,9937.97%
77.Reading CentralSouth East8,3518.10%
78.CambridgeEast of England8,0998.14%
79.Brighton Kemptown and PeacehavenSouth East8,2808.38%
80.Birmingham EdgbastonWest Midlands7,6918.43%
81.Coventry EastWest Midlands7,2888.54%
82.Enfield NorthLondon8,8538.71%
83.Ilford NorthLondon9,0308.72%
84.Sefton CentralNorth West10,4149.12%
85.South ShieldsNorth East8,3659.13%
86.Harrow WestLondon9,0989.14%
87.Bermondsey and Old SouthwarkLondon8,5159.28%
88.Bristol SouthSouth West9,0779.40%
89.Neath and Swansea EastWales8,4519.43%
90.RochdaleNorth West8,1099.64%
91.PontypriddWales8,7989.65%
92.Brent WestLondon9,4319.74%
93.Luton NorthEast of England8,7409.80%
94.EasingtonNorth East7,8529.85%
95.Cardiff WestWales10,54610.15%
96.Hammersmith and ChiswickLondon10,82310.16%
97.Edinburgh SouthScotland10,79510.18%
98.Hayes and HarlingtonLondon9,26110.53%
99.Brentford and IsleworthLondon11,36911.01%
100.Nottingham SouthEast Midlands10,04111.13%
101.ExeterSouth West10,98811.30%
102.Swansea WestWales10,03711.35%
103.Wythenshawe and Sale EastNorth West10,39611.61%
104.Hampstead and HighgateLondon13,40011.68%
105.Cardiff South and PenarthWales11,85111.76%
106.Birmingham Selly OakWest Midlands11,64512.04%
107.Ealing NorthLondon11,90812.21%
108.TootingLondon14,30712.23%
109.Norwich SouthEast of England12,58312.26%
110.Oldham West, Chadderton and RoytonNorth West11,12712.41%
111.Bolton South and WalkdenNorth West10,92912.42%
112.Jarrow and Gateshead EastNorth East10,31712.74%
113.St Helens NorthNorth West12,20912.84%
114.StockportNorth West12,01213.05%
115.Ealing Central and ActonLondon14,13313.34%
116.Sheffield HeeleyYorkshire and the Humber12,22013.37%
117.SmethwickWest Midlands10,97413.39%
118.Edmonton and Winchmore HillLondon13,06713.54%
119.PrestonNorth West11,85013.74%
120.York CentralYorkshire and the Humber14,34214.31%
121.Southgate and Wood GreenLondon15,41414.62%
122.SloughSouth East13,34714.65%
123.Middlesbrough and Thornaby EastNorth East11,14114.82%
124.Erith and ThamesmeadLondon12,98815.07%
125.Hove and PortsladeSouth East17,04415.11%
126.Aberafan MaestegWales13,45715.15%
127.Dewsbury and BatleyYorkshire and the Humber14,00915.19%
128.Sheffield Brightside and HillsboroughYorkshire and the Humber12,59115.37%
129.Mitcham and MordenLondon15,87915.38%
130.Blackley and Middleton SouthNorth West11,55815.39%
131.Blaenau Gwent and RhymneyWales12,96915.40%
132.Merthyr Tydfil and AberdareWales13,41015.55%
133.Birmingham YardleyWest Midlands13,14115.68%
134.Birmingham Hodge Hill and Solihull NorthWest Midlands12,95115.68%
135.Hornsey and Friern BarnetLondon16,60715.81%
136.Leeds SouthYorkshire and the Humber13,88616.05%
137.Ellesmere Port and BromboroughNorth West14,57716.12%
138.Greenwich and WoolwichLondon15,28316.14%
139.Bristol CentralSouth West16,69616.23%
140.Newcastle upon Tyne Central and WestNorth East15,73116.34%
141.Stretford and UrmstonNorth West16,41716.40%
142.Leeds North EastYorkshire and the Humber17,08916.92%
143.BarkingLondon13,99317.06%
144.SalfordNorth West14,24817.06%
145.Oxford EastSouth East15,95917.50%
146.Bristol EastSouth West19,39317.54%
147.Clapham and Brixton HillLondon17,29117.78%
148.Newcastle upon Tyne East and WallsendNorth East17,79317.81%
149.Ealing SouthallLondon18,26617.91%
150.Cardiff EastWales17,07918.25%
151.St Helens South and WhistonNorth West16,72018.42%
152.Islington South and FinsburyLondon19,45818.66%
153.WallaseyNorth West19,42218.87%
154.Streatham and Croydon NorthLondon20,03819.53%
155.Brent EastLondon17,75620.17%
156.Rhondda and OgmoreWales17,37720.42%
157.Bradford EastYorkshire and the Humber17,76120.64%
158.Vauxhall and Camberwell GreenLondon19,22520.70%
159.Queen's Park and Maida ValeLondon18,87421.07%
160.Nottingham EastEast Midlands18,94221.14%
161.BlackburnNorth West18,61621.33%
162.Lewisham EastLondon19,97921.33%
163.Poplar and LimehouseLondon22,04721.34%
164.Leyton and WansteadLondon21,12121.61%
165.Ilford SouthLondon20,40922.01%
166.Manchester CentralNorth West17,97022.20%
167.BirkenheadNorth West22,99322.21%
168.Croydon WestLondon20,09022.60%
169.Leeds Central and HeadingleyYorkshire and the Humber19,87922.76%
170.Widnes and HalewoodNorth West21,54222.82%
171.Leicester SouthEast Midlands22,02323.18%
172.Birmingham Perry BarrWest Midlands22,32523.79%
173.Dulwich and West NorwoodLondon24,96323.88%
174.Gorton and DentonNorth West22,17524.19%
175.Islington NorthLondon26,18824.34%
176.Manchester WithingtonNorth West25,29725.40%
177.Holborn and St PancrasLondon22,76625.45%
178.Birmingham Hall Green and MoseleyWest Midlands26,50725.62%
179.Lewisham West and Dulwich EastLondon23,82325.77%
180.West Ham and BecktonLondon21,93727.13%
181.Sheffield CentralYorkshire and the Humber20,77327.28%
182.Stratford and BowLondon26,49127.96%
183.Hackney North and Stoke NewingtonLondon29,16228.39%
184.Lewisham NorthLondon28,94928.61%
185.Liverpool GarstonNorth West28,72829.26%
186.PeckhamLondon26,55329.80%
187.Bradford WestYorkshire and the Humber27,01930.52%
188.Liverpool WavertreeNorth West31,92631.02%
189.Hackney South and ShoreditchLondon30,14131.52%
190.East HamLondon29,86331.60%
191.Bethnal Green and StepneyLondon31,65531.69%
192.WalthamstowLondon30,86231.93%
193.TottenhamLondon30,48833.34%
194.Liverpool West DerbyNorth West32,32134.64%
195.Manchester RusholmeNorth West27,90134.75%
196.BootleNorth West34,55635.14%
197.KnowsleyNorth West32,90135.44%
198.Liverpool WaltonNorth West33,72936.23%
199.Birmingham LadywoodWest Midlands32,58336.58%
200.Liverpool RiversideNorth West32,80038.66%

View Labour target seats for the next general election.

Labour Defence for the 2026 Scottish Parliament Election

Below is the Labour defence list consisting of Labour held marginal seats for the 2026 Scottish Parliament election. These marginal constituencies are ordered from the smallest to the largest swing to be defeated by the largest opposition party.

View Labour target seats for the next Scottish Parliament election.

(order by percentage majority)

RankConstituencyRegionMajoritySwing to Defeat
1.DumbartonWest Scotland1,4831.93%
2.Edinburgh SouthernLothian4,0224.44%

View Labour target seats for the next Scottish Parliament election.

Labour Defence for the 2026 Senedd Election

Below is the Labour defence list consisting of Labour held marginal seats for the 2026 Senedd election. These marginal constituencies are ordered from the smallest to the largest swing to be defeated by the largest opposition party.

View Labour target seats for the next Senedd election.

(order by percentage majority)

RankConstituencyRegionMajoritySwing to Defeat
1.WrexhamNorth Wales1,3502.99%
2.Vale of GlamorganSouth Wales Central3,2703.81%
3.Clwyd SouthNorth Wales2,9136.02%
4.Newport WestSouth Wales East3,9066.60%
5.BridgendSouth Wales West4,0646.90%
6.DelynNorth Wales3,7117.02%
7.GowerSouth Wales West4,7957.23%
8.Newport EastSouth Wales East3,5847.74%
9.Cardiff NorthSouth Wales Central6,5938.11%
10.Alyn and DeesideNorth Wales4,3788.47%
11.CaerphillySouth Wales East5,0788.78%
12.LlanelliMid and West Wales5,6759.39%
13.NeathSouth Wales West5,2219.47%
14.PontypriddSouth Wales Central5,3289.67%
15.IslwynSouth Wales East5,23910.70%
16.TorfaenSouth Wales East5,32111.11%
17.RhonddaSouth Wales Central5,49711.72%
18.AberavonSouth Wales West5,74512.96%
19.Cardiff CentralSouth Wales Central7,64013.39%
20.Swansea WestSouth Wales West6,52113.59%
21.Cardiff South and PenarthSouth Wales Central10,60614.57%
22.Cardiff WestSouth Wales Central11,21115.34%
23.Blaenau GwentSouth Wales East6,63815.94%
24.OgmoreSouth Wales West8,16516.67%
25.Cynon ValleySouth Wales Central7,46818.20%
26.Merthyr Tydfil and RhymneySouth Wales East9,31122.01%
27.Swansea EastSouth Wales West9,70022.51%

View Labour target seats for the next Senedd election.

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