Closest seats at the 1929 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	Cheshire Northwich	Con	Lab	4	0.01
2	Birmingham Ladywood	Lab	Con	11	0.03
3	South Shields	Lab	Lib	40	0.09
4	Birmingham West Birmingham	Con	Lab	43	0.13
5	Wiltshire Westbury	Con	Lib	67	0.20
6	Gainsborough	Con	Lib	67	0.25
7	Galloway	Lib	Con	101	0.32
8	Birmingham Erdington	Lab	Con	133	0.28
9	The Hartlepools	Con	Lib	138	0.30
10	Devonshire Tavistock	Con	Lib	152	0.48
11	Cheshire City of Chester	Con	Lib	162	0.50
12	Breconshire and Radnorshire	Lab	Con	187	0.43
13	Liverpool Exchange	Con	Lab	209	0.61
14	Plymouth Sutton	Con	Lab	211	0.55
15	Liverpool Walton	Con	Lab	228	0.59
16	Middlesex Enfield	Lab	Con	258	0.77
17	Dorset Eastern	Lib	Con	277	0.66
18	Gloucestershire Thornbury	Con	Lib	300	0.73
19	Wandsworth Central	Lab	Con	300	1.10
20	Berwickshire and Haddingtonshire	Lab	Con	326	1.04
21	Woolwich West	Con	Lab	332	0.86
22	Salford West	Lab	Con	358	0.98
23	Lewisham East	Con	Lab	402	0.73
24	Glasgow Partick	Lab	Con	409	1.42
25	Hammersmith South	Lab	Con	412	1.43
26	Battersea South	Lab	Con	418	1.01
27	Southwark North	Lab	Lib	432	2.05
28	Lancashire Lancaster	Con	Lib	437	0.99
29	Louth	Con	Lib	439	1.39
30	Midlothian and Peeblesshire Northern	Con	Lab	440	1.53
31	Lancashire Clitheroe	Con	Lab	443	1.12
32	Lancashire Darwen	Lib	Con	462	1.20
33	Middlesex Acton	Lab	Con	469	1.47
34	Birmingham King'S Norton	Con	Lab	491	1.43
35	Gloucester	Con	Lab	493	1.75
36	Peterborough	Lab	Con	525	1.39
37	Paddington North	Con	Lab	528	1.56
38	Lambeth North	Lab	Lib	542	2.11
39	Nottingham South	Lab	Con	548	1.59
40	Fife Eastern	Lib	Con	581	1.74
41	Bethnal Green North East	Lib	Lab	589	2.38
42	Essex Colchester	Con	Lab	602	1.81
43	Essex South Eastern	Lab	Con	626	1.25
44	Swansea West	Lab	Lib	643	1.97
45	Somerset Wells	Con	Lib	644	2.16
46	Carmarthenshire Carmarthen	Lab	Lib	653	1.65
47	Yorkshire (East Riding) Howdenshire	Con	Lib	653	2.42
48	Aberdeenshire and Kincardineshire Kincardine and Western	Lib	Con	668	3.51
49	Glasgow Central	Con	Lab	673	1.87
50	Cumberland Northern	Con	Lib	731	3.16

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