Labour Defence

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

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Labour Defence 2025

Below is the Labour defence list consisting of Labour held marginal seats for the 2025 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)


	Rank	Constituency	Region	Majority	Swing to Defeat
	1.	Bedford	East of England	145	0.15%
	2.	Coventry North West	West Midlands	208	0.22%
	3.	Alyn and Deeside	Wales	213	0.25%
	4.	Dagenham and Rainham	London	293	0.33%
	5.	Coventry South	West Midlands	401	0.45%
	6.	Weaver Vale	North West	562	0.55%
	7.	Sheffield Hallam	Yorkshire and the Humber	712	0.63%
	8.	Warwick and Leamington	West Midlands	789	0.73%
	9.	Wansbeck	North East	814	1.00%
	10.	Newport West	Wales	902	1.04%
	11.	Stockton North	North East	1,027	1.25%
	12.	Normanton, Pontefract and Castleford	Yorkshire and the Humber	1,276	1.32%
	13.	Hemsworth	Yorkshire and the Humber	1,180	1.34%
	14.	Canterbury	South East	1,836	1.53%
	15.	Chesterfield	East Midlands	1,451	1.61%
	16.	Warrington North	North West	1,509	1.62%
	17.	Oldham East and Saddleworth	North West	1,499	1.62%
	18.	Wolverhampton South East	West Midlands	1,235	1.85%
	19.	Hull East	Yorkshire and the Humber	1,239	1.91%
	20.	Gower	Wales	1,837	2.06%
	21.	Wentworth and Dearne	Yorkshire and the Humber	2,165	2.60%
	22.	Lancaster and Fleetwood	North West	2,380	2.63%
	23.	Doncaster Central	Yorkshire and the Humber	2,278	2.74%
	24.	Newport East	Wales	1,992	2.75%
	25.	Halifax	Yorkshire and the Humber	2,569	2.76%
	26.	Doncaster North	Yorkshire and the Humber	2,370	2.91%
	27.	Bradford South	Yorkshire and the Humber	2,346	2.95%
	28.	Batley and Spen	Yorkshire and the Humber	3,525	3.33%
	29.	Sunderland Central	North East	2,964	3.41%
	30.	Stalybridge and Hyde	North West	2,946	3.48%
	31.	Wirral West	North West	3,003	3.50%
	32.	Worsley and Eccles South	North West	3,219	3.60%
	33.	Eltham	London	3,197	3.66%
	34.	Houghton and Sunderland South	North East	3,115	3.91%
	35.	Walsall South	West Midlands	3,456	4.07%
	36.	Barnsley East	Yorkshire and the Humber	3,217	4.23%
	37.	Tynemouth	North East	4,857	4.33%
	38.	Rotherham	Yorkshire and the Humber	3,121	4.38%
	39.	Hartlepool	North East	3,595	4.38%
	40.	Plymouth Sutton and Devonport	South West	4,757	4.47%
	41.	Erith and Thamesmead	London	3,758	4.54%
	42.	Hull West and Hessle	Yorkshire and the Humber	2,856	4.55%
	43.	Enfield Southgate	London	4,450	4.71%
	44.	Battersea	London	5,668	4.73%
	45.	Putney	London	4,774	4.73%
	46.	Barnsley Central	Yorkshire and the Humber	3,571	4.84%
	47.	Washington and Sunderland West	North East	3,723	4.96%
	48.	Torfaen	Wales	3,742	5.03%
	49.	Bristol North West	South West	5,692	5.09%
	50.	Sheffield South East	Yorkshire and the Humber	4,289	5.11%
	51.	Birmingham Erdington	West Midlands	3,601	5.11%
	52.	Durham, City of	North East	5,025	5.14%
	53.	Ilford North	London	5,218	5.21%
	54.	Reading East	South East	5,924	5.30%
	55.	Makerfield	North West	4,740	5.35%
	56.	Croydon Central	London	5,949	5.50%
	57.	Ashton-under-Lyne	North West	4,263	5.53%
	58.	Durham North	North East	4,742	5.62%
	59.	Chester, City of	North West	6,164	5.65%
	60.	Portsmouth South	South East	5,363	5.65%
	61.	Huddersfield	Yorkshire and the Humber	4,937	5.89%
	62.	Blaydon	North East	5,531	6.05%
63.	Leicester West	East Midlands	4,212	6.06%
64.	Leicester East	East Midlands	6,019	6.09%
65.	Llanelli	Wales	4,670	6.11%
66.	Newcastle upon Tyne North	North East	5,765	6.13%
67.	Nottingham North	East Midlands	4,490	6.36%
68.	Cardiff North	Wales	6,982	6.63%
69.	Birmingham Edgbaston	West Midlands	5,614	6.63%
70.	Southampton Test	South East	6,213	6.90%
71.	Wirral South	North West	6,105	7.01%
72.	Leeds East	Yorkshire and the Humber	5,531	7.08%
73.	Derby South	East Midlands	6,019	7.09%
74.	Enfield North	London	6,492	7.21%
75.	Wigan	North West	6,728	7.47%
76.	Pontypridd	Wales	5,887	7.54%
77.	Neath	Wales	5,637	7.67%
78.	Brent North	London	8,079	7.79%
79.	Lancashire West	North West	8,336	7.91%
80.	Islwyn	Wales	5,464	7.95%
81.	Denton and Reddish	North West	6,175	8.00%
82.	Feltham and Heston	London	7,859	8.22%
83.	Brighton Kemptown	South East	8,061	8.30%
84.	Caerphilly	Wales	6,833	8.52%
85.	Coventry North East	West Midlands	7,692	8.65%
86.	Jarrow	North East	7,120	8.74%
87.	Bristol South	South West	9,859	8.93%
88.	Cambridge	East of England	9,639	8.97%
89.	Ellesmere Port and Neston	North West	8,764	8.99%
90.	Brentford and Isleworth	London	10,514	9.01%
91.	Harrow West	London	8,692	9.07%
92.	Exeter	South West	10,403	9.26%
93.	Bolton South East	North West	7,598	9.36%
94.	Gateshead	North East	7,200	9.44%
95.	Tyneside North	North East	9,561	9.48%
96.	Easington	North East	6,581	9.51%
97.	Sheffield Heeley	Yorkshire and the Humber	8,520	9.98%
98.	Rochdale	North West	9,668	10.19%
99.	Bristol East	South West	10,794	10.35%
100.	Luton South	East of England	8,756	10.41%
101.	Hayes and Harlington	London	9,261	10.53%
102.	Luton North	East of England	9,247	10.86%
103.	Leeds North West	Yorkshire and the Humber	10,749	10.91%
104.	Ogmore	Wales	7,805	11.03%
105.	Hull North	Yorkshire and the Humber	7,593	11.10%
106.	Edinburgh South	Scotland	11,095	11.15%
107.	Swansea West	Wales	8,116	11.33%
108.	Wythenshawe and Sale East	North West	10,396	11.61%
109.	Swansea East	Wales	7,970	11.87%
110.	Cardiff West	Wales	10,986	11.90%
111.	Stockport	North West	10,039	12.03%
112.	Ealing Central and Acton	London	13,300	12.13%
113.	Tooting	London	14,307	12.23%
114.	Middlesbrough	North East	8,395	12.31%
115.	Norwich South	East of England	12,760	12.35%
116.	Ealing North	London	12,269	12.36%
117.	Hampstead and Kilburn	London	14,188	12.36%
118.	Birmingham Yardley	West Midlands	10,659	12.49%
119.	Oldham West and Royton	North West	11,127	12.52%
120.	Westminster North	London	10,759	12.54%
121.	Birmingham Selly Oak	West Midlands	12,414	12.55%
122.	Cardiff South and Penarth	Wales	12,737	12.59%
123.	South Shields	North East	9,585	12.65%
124.	St Helens North	North West	12,209	12.84%
125.	Nottingham South	East Midlands	12,568	13.06%
126.	Leeds West	Yorkshire and the Humber	10,564	13.11%
127.	Slough	South East	13,640	13.36%
128.	York Central	Yorkshire and the Humber	13,545	13.68%
129.	Bermondsey and Old Southwark	London	16,126	13.76%
130.	Blaenau Gwent	Wales	8,647	14.31%
131.	Cynon Valley	Wales	8,822	14.59%
132.	Sefton Central	North West	15,122	14.86%
133.	Hove	South East	17,044	15.11%
134.	Warley	West Midlands	11,511	15.46%
135.	Sheffield Brightside and Hillsborough	Yorkshire and the Humber	12,274	15.50%
136.	Streatham	London	17,690	15.65%
137.	Hornsey and Wood Green	London	19,242	15.75%
138.	Salford and Eccles	North West	16,327	16.12%
139.	Newcastle upon Tyne Central	North East	12,278	16.38%
140.	Stretford and Urmston	North West	16,417	16.40%
141.	Merthyr Tydfil and Rhymney	Wales	10,606	16.45%
142.	Aberavon	Wales	10,490	16.60%
143.	Leeds North East	Yorkshire and the Humber	17,089	16.92%
144.	Hammersmith	London	17,847	17.17%
145.	Barking	London	15,427	17.33%
146.	Greenwich and Woolwich	London	18,464	17.38%
147.	Vauxhall	London	19,612	17.41%
148.	Newcastle upon Tyne East	North East	15,463	17.83%
149.	Preston	North West	12,146	17.97%
150.	Mitcham and Morden	London	16,482	18.02%
151.	Oxford East	South East	17,832	18.06%
152.	Islington South and Finsbury	London	17,328	18.12%
153.	Birmingham Perry Barr	West Midlands	15,317	18.17%
154.	Blackley and Broughton	North West	14,402	18.65%
155.	Bristol West	South West	28,219	18.68%
156.	Lewisham East	London	17,008	18.98%
157.	St Helens South and Whiston	North West	19,122	19.00%
158.	Ealing Southall	London	16,084	19.05%
159.	Rhondda	Wales	11,440	19.30%
160.	Leeds Central	Yorkshire and the Humber	19,270	19.55%
161.	Wallasey	North West	18,322	19.70%
162.	Edmonton	London	16,015	19.85%
163.	Blackburn	North West	18,304	20.46%
164.	Bradford East	Yorkshire and the Humber	18,144	20.53%
165.	Halton	North West	18,975	20.53%
166.	Cardiff Central	Wales	17,179	20.54%
167.	Lewisham West and Penge	London	21,543	20.67%
168.	Birkenhead	North West	17,705	20.91%
169.	Brent Central	London	20,870	21.24%
170.	Nottingham East	East Midlands	17,393	21.74%
171.	Croydon North	London	24,673	22.18%
172.	Ilford South	London	24,101	22.53%
173.	Leicester South	East Midlands	22,675	22.61%
174.	Leyton and Wanstead	London	20,808	23.36%
175.	Poplar and Limehouse	London	28,904	23.59%
176.	Islington North	London	26,188	24.34%
177.	Holborn and St Pancras	London	27,763	24.45%
178.	Dulwich and West Norwood	London	27,310	24.48%
179.	Manchester Withington	North West	27,905	26.33%
180.	Sheffield Central	Yorkshire and the Humber	27,273	26.78%
181.	West Ham	London	32,388	26.90%
182.	Birmingham Hall Green	West Midlands	28,508	26.94%
183.	Manchester Central	North West	29,089	27.82%
184.	Hackney North and Stoke Newington	London	33,188	29.18%
185.	Garston and Halewood	North West	31,624	29.65%
186.	Lewisham Deptford	London	32,913	29.72%
187.	Camberwell and Peckham	London	33,780	29.90%
188.	East Ham	London	33,176	30.37%
189.	Bradford West	Yorkshire and the Humber	27,019	30.52%
190.	Bethnal Green and Bow	London	37,524	30.98%
191.	Hackney South and Shoreditch	London	33,985	31.21%
192.	Liverpool Wavertree	North West	27,085	31.22%
193.	Birmingham Hodge Hill	West Midlands	28,655	31.84%
194.	Walthamstow	London	30,862	31.93%
195.	Tottenham	London	30,175	32.20%
196.	Birmingham Ladywood	West Midlands	28,582	33.93%
197.	Manchester Gorton	North West	30,339	34.05%
198.	Liverpool West Derby	North West	29,984	34.08%
199.	Liverpool Riverside	North West	37,043	35.09%
200.	Bootle	North West	34,556	35.14%
201.	Knowsley	North West	39,942	36.35%
202.	Liverpool Walton	North West	30,520	37.41%

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)


Rank	Constituency	Region	Majority	Swing to Defeat
1.	Dumbarton	West Scotland	1,483	1.93%
2.	Edinburgh Southern	Lothian	4,022	4.44%

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)


Rank	Constituency	Region	Majority	Swing to Defeat
1.	Wrexham	North Wales	1,350	2.99%
2.	Vale of Glamorgan	South Wales Central	3,270	3.81%
3.	Clwyd South	North Wales	2,913	6.02%
4.	Newport West	South Wales East	3,906	6.60%
5.	Bridgend	South Wales West	4,064	6.90%
6.	Delyn	North Wales	3,711	7.02%
7.	Gower	South Wales West	4,795	7.23%
8.	Newport East	South Wales East	3,584	7.74%
9.	Cardiff North	South Wales Central	6,593	8.11%
10.	Alyn and Deeside	North Wales	4,378	8.47%
11.	Caerphilly	South Wales East	5,078	8.78%
12.	Llanelli	Mid and West Wales	5,675	9.39%
13.	Neath	South Wales West	5,221	9.47%
14.	Pontypridd	South Wales Central	5,328	9.67%
15.	Islwyn	South Wales East	5,239	10.70%
16.	Torfaen	South Wales East	5,321	11.11%
17.	Rhondda	South Wales Central	5,497	11.72%
18.	Aberavon	South Wales West	5,745	12.96%
19.	Cardiff Central	South Wales Central	7,640	13.39%
20.	Swansea West	South Wales West	6,521	13.59%
21.	Cardiff South and Penarth	South Wales Central	10,606	14.57%
22.	Cardiff West	South Wales Central	11,211	15.34%
23.	Blaenau Gwent	South Wales East	6,638	15.94%
24.	Ogmore	South Wales West	8,165	16.67%
25.	Cynon Valley	South Wales Central	7,468	18.20%
26.	Merthyr Tydfil and Rhymney	South Wales East	9,311	22.01%
27.	Swansea East	South Wales West	9,700	22.51%

View Labour target seats for the next Senedd election.

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