Closest seats at the 1950 general election

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

#	Constituency	Winner	Runner-up	Majority	%
1	Gloucestershire Stroud and Thornbury	Con	Lab	28	0.05
2	Middlesex Spelthorne	Con	Lab	31	0.05
3	Manchester Blackley	Lab	Con	42	0.08
4	Pudsey	Con	Lab	64	0.14
5	York	Con	Lab	77	0.12
6	Yorkshire (West Riding) Shipley	Con	Lab	81	0.19
7	Dorset North	Con	Lab	97	0.27
8	Pembrokeshire	Lab	Nat Lib	129	0.25
9	Bexley	Con	Lab	133	0.24
10	Woolwich West	Con	Lab	140	0.31
11	Northamptonshire (and the Soke of Peterborough) Peterborough	Con	Lab	144	0.29
12	Preston South	Lab	Con	149	0.33
13	Kent Chislehurst	Con	Lab	167	0.30
14	Carmarthenshire Carmarthen	Lib	Lab	187	0.38
15	Worcestershire Bromsgrove	Con	Lab	190	0.39
16	Glasgow Scotstoun	Con	Lab	239	0.58
17	Norfolk South West	Lab	Con	260	0.79
18	Caithness and Sutherland	Con	Lib	269	1.38
19	Norfolk King'S Lynn	Lab	Con	270	0.63
20	Lancashire Chorley	Lab	Ind Con	361	0.74
21	Battersea South	Lab	Con	368	1.06
22	Glasgow Govan	Con	Lab	373	0.90
23	Oldham East	Lab	Con	393	0.82
24	Nottinghamshire Carlton	Con	Lab	395	0.82
25	Buckinghamshire Wycombe	Lab	Con	476	0.93
26	Rochester and Chatham	Lab	Con	477	0.97
27	Reading North	Lab	Con	527	1.55
28	Dunbartonshire West	Lab	Con	613	1.48
29	Suffolk Eye	Lib	Con	627	1.32
30	Liverpool Kirkdale	Lab	Con	628	1.59
31	Lanarkshire Lanark	Con	Lab	685	1.75
32	Wolverhampton South West	Con	Lab	691	1.57
33	Lanarkshire Rutherglen	Lab	Con	695	1.83
34	Kingston upon Hull North	Con	Lab	770	1.83
35	Bury and Radcliffe	Con	Lab	780	1.35
36	Caernarvonshire Conway	Lab	Con	803	2.03
37	Lancashire Huyton	Lab	Con	834	1.87
38	Brentford and Chiswick	Con	Lab	857	2.23
39	Doncaster	Lab	Con	878	1.83
40	Somerset North	Con	Lab	903	1.72
41	Plymouth Sutton	Lab	Con	924	1.60
42	Ashton under Lyne	Lab	Con	924	2.23
43	Essex Colchester	Con	Lab	931	2.02
44	Preston North	Con	Lab	938	2.07
45	Portsmouth West	Con	Lab	945	1.92
46	Croydon West	Con	Lab	987	2.18
47	Glamorganshire Barry	Lab	Con	1,025	2.20
48	Warwickshire Rugby	Lab	Con	1,036	2.66
49	Merionethshire	Lib	Lab	1,070	4.31
50	Glasgow Woodside	Con	Lab	1,079	3.08

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