Closest seats

The smallest winning majorities in UK general elections since 1918, in votes and as a share of the vote.

#	Constituency	Election	Winner	Runner-up	Majority	%
1	Winchester	1997	LD	Con	2	0.00
2	North East Fife	2017	SNP Stephen Gethins	LD	2	0.00
3	Derbyshire Ilkeston	1931	Nat Lab	Lab	2	0.01
4	Devonshire Tiverton	1923	Lib	Con	3	0.01
5	Leeds West	1924	Lab	Con	3	0.01
6	Peterborough	1966	Con	Lab	3	0.01
7	Carmarthen	February 1974	Lab	PC	3	0.01
8	Cheshire Northwich	1929	Con	Lab	4	0.01
9	Worcester	1945	Con	Lab	4	0.01
10	Fermanagh and South Tyrone	2010	SF Michelle Gildernew	Ind	4	0.01
11	Durham Sedgefield	1923	Con	Lab	6	0.03
12	Caithness and Sutherland	1945	Con	Lab	6	0.04
13	Leicester South	1983	Con	Lab	7	0.01
14	Portsmouth Central	1922	Con	Nat Lib	7	0.02
15	Brighton Kemptown	1964	Lab	Con	7	0.02
16	Bodmin	February 1974	Lib	Con	9	0.02
17	Reading	1964	Con	Lab	10	0.02
18	Manchester Rusholme	1945	Lab	Con	10	0.03
19	University of Wales	1923	Lab	Lib	10	0.63
20	Eton and Slough	1964	Con	Lab	11	0.02
21	Birmingham Ladywood	1929	Lab	Con	11	0.03
22	Manchester Clayton	1922	Con	Lab	11	0.04
23	South East Derbyshire	1959	Con	Lab	12	0.02
24	Torbay	1997	LD	Con	12	0.02
25	Ipswich	1970	Con	Lab	13	0.02
26	Preston North	1964	Con	Lab	14	0.03
27	Cheshire Northwich	1945	Con	Lab	15	0.03
28	Hendon	2024	Lab David Pinto-Duschinsky	Con	15	0.04
29	Derbyshire North Eastern	1922	Lab	Lib	15	0.05
30	Staffordshire Kingswinford	1935	Lab	Con	16	0.04
31	Preston South	1951	Lab	Con	16	0.04
32	Hertfordshire Hemel Hempstead	1923	Lib	Con	17	0.10
33	Poole	2024	Lab Neil Duncan-Jordan	Con	18	0.04
34	Vale of Glamorgan	1992	Con	Lab	19	0.03
35	Salford North	1922	Lab	Con	19	0.07
36	Kensington	2017	Lab Emma Dent Coad	Con	20	0.05
37	Basildon and Billericay	2024	Con Richard Holden	Lab	20	0.05
38	Birmingham All Saints	1959	Con	Lab	20	0.06
39	Perth and North Perthshire	2017	SNP Pete Wishart	Con	21	0.04
40	Hyndburn	1983	Con	Lab	21	0.05
41	Peterborough	February 1974	Con	Lab	22	0.04
42	Dunbartonshire East	October 1974	SNP	Con	22	0.04
43	Dudley North	2017	Lab Ian Austin	Con	22	0.06
44	Nottingham Central	1922	Lib	Con	22	0.10
45	South Shields	1922	Lib	Lab	25	0.06
46	Huddersfield	1923	Lab	Lib	26	0.05
47	Ealing North	1964	Lab	Con	27	0.06
48	Gower	2015	Con Byron Davies	Lab	27	0.06
49	Gloucestershire Stroud and Thornbury	1950	Con	Lab	28	0.05
50	Preston North	1979	Con	Lab	29	0.07
51	Lambeth North	1924	Lib	Lab	29	0.14
52	Newcastle-under-Lyme	2017	Lab Paul Farrelly	Con	30	0.07
53	Galloway	October 1974	SNP	Con	30	0.10
54	Middlesex Spelthorne	1950	Con	Lab	31	0.05
55	Southampton, Itchen	2017	Con Royston Smith	Lab	31	0.07
56	King'S Lynn	1970	Con	Lab	33	0.07
57	Cheadle	2001	LD	Con	33	0.08
58	Glasgow Cathcart	1922	Lab	Nat Lib	33	0.12
59	Kent Maidstone	1922	Con	Lib	33	0.13
60	Plymouth Drake	October 1974	Con	Lab	34	0.08
61	Glasgow Springburn	1931	Con	Lab	34	0.10
62	Crawley	2005	Lab	Con	37	0.09
63	Bury and Radcliffe	1979	Lab	Con	38	0.06
64	North West Cambridgeshire	2024	Lab Sam Carling	Con	39	0.09
65	Lincoln	1924	Lab	Con	39	0.14
66	South Shields	1929	Lab	Lib	40	0.09
67	Derby North	2015	Con Amanda Solloway	Lab	41	0.09
68	Berkshire Newbury	1923	Lib	Con	41	0.18
69	Manchester Blackley	1950	Lab	Con	42	0.08
70	Hampstead and Kilburn	2010	Lab Glenda Jackson	Con	42	0.08
71	Birmingham West Birmingham	1929	Con	Lab	43	0.13
72	Cambridgeshire	1945	Lab	Con	44	0.10
73	Edinburgh Pentlands	1966	Con	Lab	44	0.10
74	Leicestershire Melton	1923	Con	Lib	44	0.17
75	Richmond Park	2017	Con Zac Goldsmith	LD	45	0.07
76	Bristol North West	1992	Con	Lab	45	0.08
77	Bermondsey Rotherhithe	1922	Con	Lab	46	0.25
78	University of Wales	1922	Nat Lib	Lib	46	3.66
79	Brighouse and Spenborough	1959	Lab	Con	47	0.10
80	Wellingborough	1964	Lab	Con	47	0.10
81	Crewe and Nantwich	2017	Lab Laura Smith	Con	48	0.09
82	Perth	2001	SNP	Con	48	0.13
83	Kent Isle of Thanet	1923	Con	Lib	48	0.17
84	Essex Maldon	1923	Lab	Con	49	0.24
85	Gloucester	1922	Con	Lab	51	0.23
86	Fermanagh and South Tyrone	2001	SF	UUP	53	0.10
87	Hayes and Harlington	1992	Con	Lab	53	0.12
88	North Norfolk	1964	Lab	Con	53	0.14
89	Norfolk South Western	1945	Lab	Con	53	0.18
90	Kinross and West Perthshire	October 1974	Con	SNP	53	0.20
91	North Warwickshire	2010	Con Daniel Byles	Lab	54	0.11
92	Buckinghamshire Buckingham	1951	Con	Lab	54	0.12
93	Kingston and Surbiton	1997	LD	Con	56	0.10
94	Mansfield	1987	Lab	Con	56	0.11
95	Brecon and Radnor	1987	Alliance	Con	56	0.13
96	Fermanagh and South Tyrone	2019	SF Michelle Gildernew	UUP	57	0.11
97	Lanarkshire Coatbridge	1924	Lab	Con	57	0.22
98	Faversham	1955	Lab	Con	59	0.12
99	Brighouse and Spenborough	1970	Con	Lab	59	0.12
100	Glasgow South West	2017	SNP Chris Stephens	Lab	60	0.17

Single-member seats with a recorded contest. Percentages are of valid votes.

Official results House of Commons Library and UK Parliament election results data. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. How we use this data