Compiled by EveryElectionResult.com's data team · Last updated 2026-08-30
South County Dublin was won by Sinn Féin at the 1918 general election, with a majority of 779 votes over Irish Unionist. This page covers every general election in South County Dublin from 1885 to 1918.
Full Election History, 1885–1918
Election
Elected
Votes
Vote Share
Runner-up
Majority
Turnout
1885
Thomas Henry Grattan Esmonde (Irish Parliamentary Party)
5,114
57.8%
Ion Trant Hamilton (Irish Unionist)
1,378 (15.6 pts)
78.2%
1886
Thomas Henry Grattan Esmonde (Irish Parliamentary Party)
5,022
60.7%
Joseph Todhunter Pim (Liberal Unionist)
1,768 (21.4 pts)
73.1%
1892
Horace Curzon Plunkett (Irish Unionist)
4,371
54.1%
St Lawrence Ffrench-Mullen (Irish Parliamentary Party)
2,110 (26.1 pts)
77.8%
1895
Horace Curzon Plunkett (Irish Unionist)
4,901
62.3%
Edmund Haviland-Burke (Irish Parliamentary Party)
1,939 (24.7 pts)
71.8%
1900
John Joseph Mooney (Irish Parliamentary Party)
3,410
43.4%
Horace Curzon Plunkett (Irish Unionist)
504 (6.4 pts)
73.0%
1906
Walter Hume Long (Irish Unionist)
5,269
57.3%
Richard Hazleton (Irish Parliamentary Party)
1,343 (14.6 pts)
87.2%
Jan 1910
Bryan Ricco Cooper (Irish Unionist)
5,072
50.3%
William Francis Cotton (Irish Parliamentary Party)
66 (0.7 pts)
85.9%
Dec 1910
William Francis Cotton (Irish Parliamentary Party)
5,223
50.6%
Bryan Ricco Cooper (Irish Unionist)
133 (1.3 pts)
85.9%
1918
George Gavan Duffy (Sinn Féin)
5,133
38.6%
Thomas Robinson (Irish Unionist)
779 (5.9 pts)
74.6%
Full Result Breakdown by Election
1885
Candidate
Party
Votes
Share
Elected
Thomas Henry Grattan Esmonde
Irish Parliamentary Party
5,114
57.8%
Yes
Ion Trant Hamilton
Irish Unionist
3,736
42.2%
No
1886
Candidate
Party
Votes
Share
Elected
Thomas Henry Grattan Esmonde
Irish Parliamentary Party
5,022
60.7%
Yes
Joseph Todhunter Pim
Liberal Unionist
3,254
39.3%
No
1892
Candidate
Party
Votes
Share
Elected
Horace Curzon Plunkett
Irish Unionist
4,371
54.1%
Yes
St Lawrence Ffrench-Mullen
Irish Parliamentary Party
2,261
28.0%
No
Thomas Henry Grattan Esmonde
Irish Parliamentary Party
1,452
18.0%
No
1895
Candidate
Party
Votes
Share
Elected
Horace Curzon Plunkett
Irish Unionist
4,901
62.3%
Yes
Edmund Haviland-Burke
Irish Parliamentary Party
2,962
37.7%
No
1900
Candidate
Party
Votes
Share
Elected
John Joseph Mooney
Irish Parliamentary Party
3,410
43.4%
Yes
Horace Curzon Plunkett
Irish Unionist
2,906
37.0%
No
Francis Elrington Ball
Independent Unionist
1,539
19.6%
No
1906
Candidate
Party
Votes
Share
Elected
Walter Hume Long
Irish Unionist
5,269
57.3%
Yes
Richard Hazleton
Irish Parliamentary Party
3,926
42.7%
No
Jan 1910
Candidate
Party
Votes
Share
Elected
Bryan Ricco Cooper
Irish Unionist
5,072
50.3%
Yes
William Francis Cotton
Irish Parliamentary Party
5,006
49.7%
No
Dec 1910
Candidate
Party
Votes
Share
Elected
William Francis Cotton
Irish Parliamentary Party
5,223
50.6%
Yes
Bryan Ricco Cooper
Irish Unionist
5,090
49.4%
No
1918
Candidate
Party
Votes
Share
Elected
George Gavan Duffy
Sinn Féin
5,133
38.6%
Yes
Thomas Robinson
Irish Unionist
4,354
32.7%
No
Thomas Clarke
Irish Parliamentary Party
3,819
28.7%
No
Margin Over Time
Winning margin (percentage points) at each election, coloured by the winning party.
Trend
South County Dublin has been contested at 9 general elections on record since 1885. Parties that have won a seat here over that span: Irish Parliamentary Party, Irish Unionist, Sinn Féin.
Frequently Asked Questions
Who won South County Dublin in the 1918 general election?
Sinn Féin won South County Dublin in 1918 with 5,133 votes (38.6%), a majority of 779 votes over Irish Unionist in second place.
Which parties have won South County Dublin since 1885?
Since 1885, South County Dublin has been won by: Irish Parliamentary Party, Irish Unionist, Sinn Féin.
What was the closest result in South County Dublin?
The closest result on record for South County Dublin was Jan 1910, when Irish Unionist beat Irish Parliamentary Party by just 66 votes (0.7 percentage points).