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Cardiff South — UK General Election Results

Compiled by EveryElectionResult.com's data team · Last updated 2026-08-30

Cardiff South was won by Labour at the 1945 general election, with a majority of 5,944 votes over Conservative. This page covers every general election in Cardiff South from 1918 to 1945.

Full Election History, 1918–1945

Election Elected Votes Vote Share Runner-up Majority Turnout
1918 James Herbert Cory (Unionist) 7,922 48.4% Joshua Thomas Clatworthy (Labour) 3,619 (22.1 pts) 57.8%
1922 James Herbert Cory (Unionist) 7,929 36.4% Bernard Cyril Freyberg (Liberal) 933 (4.3 pts) 74.9%
1923 Arthur Henderson (Labour) 7,899 37.9% James Herbert Cory (Unionist) 426 (2.0 pts) 70.6%
1924 Henry Arthur Evans (Unionist) 11,542 49.9% Arthur Henderson (Labour) 2,218 (9.6 pts) 78.8%
1929 Arthur Henderson (Labour) 13,686 45.2% Ernest Tom Nethercoat (Unionist) 3,656 (12.1 pts) 79.4%
1931 Henry Arthur Evans (Conservative) 17,976 59.8% Arthur Henderson (Labour) 5,884 (19.6 pts) 77.8%
1935 Henry Arthur Evans (Conservative) 14,925 50.9% Harry Louis Nathan (Labour) 541 (1.8 pts) 75.8%
1945 Leonard James Callaghan (Labour) 17,489 60.2% Henry Arthur Evans (Conservative) 5,944 (20.5 pts) 73.9%

Full Result Breakdown by Election

1918

CandidatePartyVotesShareElected
James Herbert Cory Unionist 7,92248.4% Yes
Joshua Thomas Clatworthy Labour 4,30326.3% No
Edward Curran Liberal 4,12625.2% No

1922

CandidatePartyVotesShareElected
James Herbert Cory Unionist 7,92936.4% Yes
Bernard Cyril Freyberg Liberal 6,99632.2% No
David Graham Pole Labour 6,83131.4% No

1923

CandidatePartyVotesShareElected
Arthur Henderson Labour 7,89937.9% Yes
James Herbert Cory Unionist 7,47335.8% No
Walter Thomas Layton Liberal 5,47426.3% No

1924

CandidatePartyVotesShareElected
Henry Arthur Evans Unionist 11,54249.9% Yes
Arthur Henderson Labour 9,32440.3% No
David Evans George Davies Liberal 2,2879.9% No

1929

CandidatePartyVotesShareElected
Arthur Henderson Labour 13,68645.2% Yes
Ernest Tom Nethercoat Unionist 10,03033.1% No
Charles James Cole Liberal 6,55021.6% No

1931

CandidatePartyVotesShareElected
Henry Arthur Evans Conservative 17,97659.8% Yes
Arthur Henderson Labour 12,09240.2% No

1935

CandidatePartyVotesShareElected
Henry Arthur Evans Conservative 14,92550.9% Yes
Harry Louis Nathan Labour 14,38449.1% No

1945

CandidatePartyVotesShareElected
Leonard James Callaghan Labour 17,48960.2% Yes
Henry Arthur Evans Conservative 11,54539.8% No

Margin Over Time

Winning margin (percentage points) at each election, coloured by the winning party.

1918: Unionist margin 22.1 pts 1922: Unionist margin 4.3 pts 1923: Labour margin 2.0 pts 1924: Unionist margin 9.6 pts 1929: Labour margin 12.1 pts 1931: Conservative margin 19.6 pts 1935: Conservative margin 1.8 pts 1945: Labour margin 20.5 pts 1918 1922 1923 1924 1929 1931 1935 1945

Trend

Cardiff South has been contested at 8 general elections on record since 1918. Parties that have won a seat here over that span: Unionist, Labour, Conservative.

Frequently Asked Questions

Who won Cardiff South in the 1945 general election?

Labour won Cardiff South in 1945 with 17,489 votes (60.2%), a majority of 5,944 votes over Conservative in second place.

Which parties have won Cardiff South since 1918?

Since 1918, Cardiff South has been won by: Conservative, Labour, Unionist.

What was the closest result in Cardiff South?

The closest result on record for Cardiff South was 1935, when Conservative beat Labour by just 541 votes (1.8 percentage points).

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