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Belfast South
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Data Last Updated: 7 August 2025
Application Last Amended: 20 July 2024
This website is considered to be an archive in the public interest.
| New | |||
| 27 November 1885 | 5,471/6,740 | 81.17 | |
| Independent Conservative | 3,610 | 65.98 | |
| Liberal Party | 990 | 18.10 | |
| Independent Conservative | 871 | 15.92 | |
| Majority | 2,620 | 47.89 | |
| 7 July 1886 | 5,199/6,740 | 77.14 | |
| Unionist | 4,542 | 87.36 | |
| Nationalist | 657 | 12.64 | |
| Majority | 3,885 | 74.73 | |
| 4 July 1892 | 7,563 | ||
| Unionist | Unopposed |   | |
| 13 July 1895 | 8,192 | ||
| Unionist | Unopposed |   | |
| 29 September 1900 | 8,441 | ||
| Unionist | Unopposed |   | |
| 17 July 1902 Death of William Johnston. | |||
| 18 August 1902 | 6,764/10,246 | 66.02 | |
| Independent Unionist | 3,795 | 56.11 | |
| Unionist | 2,969 | 43.89 | |
| Majority | 826 | 12.21 | |
| 18 January 1906 | 8,084/9,588 | 84.31 | |
| Independent Unionist | 4,450 | 55.05 | |
| Unionist | 3,634 | 44.95 | |
| Majority | 816 | 10.09 | |
| 20 January 1910 | 9,325/10,622 | 87.79 | |
| Unionist | 5,772 | 61.90 | |
| Independent Unionist | 3,553 | 38.10 | |
| Majority | 2,219 | 23.80 | |
| 8 December 1910 | 8,307/10,622 | 78.21 | |
| Unionist | 5,585 | 67.23 | |
| Independent Unionist | 2,722 | 32.77 | |
| Majority | 2,863 | 34.46 | |
| 19 March 1917 Appointment of James Chambers as Solicitor-General for Ireland. | |||
| 9 April 1917 | 12,111 | ||
| Unionist | Unopposed |   | |
| 11 June 1917 Death of James Chambers. | |||
| 2 July 1917 | 12,111 | ||
| Unionist | Unopposed |   | |
| New | |||
| 15 November 1922 | |||
| Conservative & Unionist Party | Unopposed |   | |
| 6 December 1923 | 44,054 | ||
| Conservative & Unionist Party | Unopposed |   | |
| 29 October 1924 | 43,535 | ||
| Conservative & Unionist Party | Unopposed |   | |
| 30 May 1929 | 38,167/59,025 | 64.66 | |
| Conservative & Unionist Party | 24,019 | 62.93 | |
| Independent Conservative | 14,148 | 37.07 | |
| Majority | 9,871 | 25.86 | |
| 27 October 1931 | 59,394 | ||
| Conservative & Unionist Party | Unopposed |   | |
| 14 November 1935 | 63,005 | ||
| Conservative & Unionist Party | Unopposed |   | |
| 5 July 1945 | 46,544/70,140 | 66.36 | |
| Conservative & Unionist Party | 24,282 | 52.17 | |
| Commonwealth Labour | 14,096 | 30.29 | |
| Labour Party | 8,166 | 17.54 | |
| Majority | 10,186 | 21.88 | |
| 23 February 1950 | 46,048/66,486 | 69.26 | |
| Conservative & Unionist Party | 34,620 | 75.18 | |
| Labour Party | 11,428 | 24.82 | |
| Majority | 23,192 | 50.36 | |
| 25 October 1951 | 48,861/66,212 | 73.79 | |
| Conservative & Unionist Party | 37,046 | 75.82 | |
| Labour Party | 11,815 | 24.18 | |
| Majority | 25,231 | 51.64 | |
| 8 October 1952 Resignation of Conolly Gage. (Northstead) | |||
| 4 November 1952 | 30,722/65,195 | 47.12 | |
| Conservative & Unionist Party | 23,067 | 75.08 | |
| Labour Party | 7,655 | 24.92 | |
| Majority | 15,412 | 50.17 | |
| 26 May 1955 | 42,579/64,844 | 65.66 | |
| Conservative & Unionist Party | 33,392 | 78.42 | |
| Labour Party | 7,508 | 17.63 | |
| Sinn Féin | 1,679 | 3.94 | |
| Majority | 25,884 | 60.79 | |
| 8 October 1959 | 43,169/59,864 | 72.11 | |
| Conservative & Unionist Party | 30,164 | 69.87 | |
| Labour Party | 9,318 | 21.58 | |
| Liberal Party | 3,253 | 7.54 | |
| Sinn Féin | 434 | 1.01 | |
| Majority | 20,846 | 48.29 | |
| 12 June 1963 Death of Rt Hon Sir David Campbell. | |||
| 22 October 1963 | 27,972/57,864 | 48.34 | |
| Conservative & Unionist Party | 17,989 | 64.31 | |
| Labour Party | 7,209 | 25.77 | |
| Liberal Party | 2,774 | 9.92 | |
| Majority | 10,780 | 38.54 | |
| 15 October 1964 | 39,314/57,558 | 68.30 | |
| Conservative & Unionist Party | 27,422 | 69.75 | |
| Labour Party | 8,792 | 22.36 | |
| Liberal Party | 1,941 | 4.94 | |
| Republican | 1,159 | 2.95 | |
| Majority | 18,630 | 47.39 | |
| 31 March 1966 | 35,693/56,381 | 63.31 | |
| Conservative & Unionist Party | 23,329 | 65.36 | |
| Labour Party | 12,364 | 34.64 | |
| Majority | 10,965 | 30.72 | |
| 18 June 1970 | 39,090/57,112 | 68.44 | |
| Conservative & Unionist Party | 27,523 | 70.41 | |
| Labour Party | 11,567 | 29.59 | |
| Majority | 15,956 | 40.82 | |
| 1972 John Pounder resigns from the Conservative whip. | |||
| Major Boundary Change | |||
| 28 February 1974 | 51,890/74,534 | 69.62 | |
| Vanguard Unionist Progressive Party | 22,083 | 42.56 | |
| PAUU | 18,085 | 34.85 | |
| Alliance Party | 5,118 | 9.86 | |
| Social Democratic Labour Party | 4,149 | 8.00 | |
| Northern Ireland Labour Party | 2,455 | 4.73 | |
| Majority | 3,998 | 7.70 | |
| 10 October 1974 | 50,846/75,112 | 67.69 | |
| Vanguard Unionist Progressive Party | 30,116 | 59.23 | |
| Alliance Party | 11,715 | 23.04 | |
| Independent Ulster Unionist | 4,982 | 9.80 | |
| Social Democratic Labour Party | 2,390 | 4.70 | |
| Northern Ireland Labour Party | 1,643 | 3.23 | |
| Majority | 18,401 | 36.19 | |
| 19 November 1975 Rev Robert Bradford leaves the VUPP and joins the OUP. | |||
| 3 May 1979 | 46,790/68,920 | 67.89 | |
| Official Unionist Party | 28,875 | 61.71 | |
| Alliance Party | 11,745 | 25.10 | |
| Social Democratic Labour Party | 3,694 | 7.89 | |
| UPNI | 1,784 | 3.81 | |
| Independent Labour | 692 | 1.48 | |
| Majority | 17,130 | 36.61 | |
| Jeff Dudgeon sought election as a Labour Integrationist. | |||
| 14 November 1981 Assassination of Robert Bradford. | |||
| 4 March 1982 | 43,534/66,219 | 65.74 | |
| Official Unionist Party | 17,123 | 39.33 | |
| Alliance Party | 11,726 | 26.94 | |
| Democratic Unionist Party | 9,818 | 22.55 | |
| Social Democratic Labour Party | 3,839 | 8.82 | |
| Ulster Loyalist Democratic Party | 576 | 1.32 | |
| U LAB | 303 | 0.70 | |
| Independent | 137 | 0.31 | |
| Independent | 12 | 0.03 | |
| Majority | 5,397 | 12.40 | |
| Jagat Narain sought election for Peace State, and withdrew before polling day. | |||
| Simon Hall-Raleigh sought election for One Human Family. | |||
| Major Boundary Change | |||
| 9 June 1983 | 37,358/54,115 | 69.03 | |
| Official Unionist Party | 18,669 | 49.97 | |
| Alliance Party | 8,945 | 23.94 | |
| Democratic Unionist Party | 4,565 | 12.22 | |
| Social Democratic Labour Party | 3,216 | 8.61 | |
| Sinn Féin | 1,107 | 2.96 | |
| Workers Party | 856 | 2.29 | |
| Majority | 9,724 | 26.03 | |
| 17 December 1985 Resignation of Rev Martin Smyth over the Anglo-Irish Agreement. (Northstead) | |||
| 23 January 1986 | 30,515/54,115 | 56.39 | |
| Official Unionist Party | 21,771 | 71.35 | |
| Alliance Party | 7,635 | 25.02 | |
| Workers Party | 1,109 | 3.63 | |
| Majority | 14,136 | 46.32 | |
| 11 June 1987 | 32,706/54,689 | 59.80 | |
| Official Unionist Party | 18,917 | 57.84 | |
| Alliance Party | 6,963 | 21.29 | |
| Social Democratic Labour Party | 4,268 | 13.05 | |
| Workers Party | 1,528 | 4.67 | |
| Sinn Féin | 1,030 | 3.15 | |
| Majority | 11,954 | 36.55 | |
| 9 April 1992 | 33,584/52,032 | 64.54 | |
| Ulster Unionist Party | 16,336 | 48.64 | |
| Social Democratic Labour Party | 6,266 | 18.66 | |
| Alliance Party | 5,054 | 15.05 | |
| Conservative & Unionist Party | 3,356 | 9.99 | |
| Sinn Féin | 1,123 | 3.34 | |
| LTU | 875 | 2.61 | |
| Workers Party | 362 | 1.08 | |
| Natural Law Party | 212 | 0.63 | |
| Majority | 10,070 | 29.98 | |
| Major Boundary Change | |||
| 1 May 1997 | 39,484/63,439 | 62.24 | |
| Ulster Unionist Party | 14,201 | 35.97 | |
| Social Democratic Labour Party | 9,601 | 24.32 | |
| PUP | 5,687 | 14.40 | |
| Alliance Party | 5,112 | 12.95 | |
| Sinn Féin | 2,019 | 5.11 | |
| Women's Party | 1,204 | 3.05 | |
| Conservative & Unionist Party | 962 | 2.44 | |
| Independent Labour | 292 | 0.74 | |
| Workers Party | 286 | 0.72 | |
| Natural Law Party | 120 | 0.30 | |
| Majority | 4,600 | 11.65 | |
| 7 June 2001 | 37,952/59,436 | 63.85 | |
| Ulster Unionist Party | 17,008 | 44.81 | |
| Social Democratic Labour Party | 11,609 | 30.59 | |
| NI Womens | 2,968 | 7.82 | |
| Sinn Féin | 2,894 | 7.63 | |
| Alliance Party | 2,042 | 5.38 | |
| PUP | 1,112 | 2.93 | |
| Workers Party | 204 | 0.54 | |
| Ind Vote | 115 | 0.30 | |
| Majority | 5,399 | 14.23 | |
| 23 June 2003 Rev Martin Smyth resigns the UUP whip in protest against the policies followed by the UUP leadership. | |||
| 5 May 2005 | 32,028/52,668 | 60.81 | |
| Social Democratic Labour Party | 10,339 | 32.28 | |
| Democratic Unionist Party | 9,104 | 28.43 | |
| Ulster Unionist Party | 7,263 | 22.68 | |
| Sinn Féin | 2,882 | 9.00 | |
| Alliance Party | 2,012 | 6.28 | |
| Rainbow | 235 | 0.73 | |
| Workers Party | 193 | 0.60 | |
| Majority | 1,235 | 3.86 | |
| Major Boundary Change | |||
| 6 May 2010 | 34,186/59,524 | 57.43 | |
| Social Democratic Labour Party | 14,026 | 41.03 | |
| Democratic Unionist Party | 8,100 | 23.69 | |
| Ulster Conservatives & Unionists | 5,910 | 17.29 | |
| Alliance Party | 5,114 | 14.96 | |
| Green Party | 1,036 | 3.03 | |
| Majority | 5,926 | 17.33 | |
| 7 May 2015 | 38,957/64,927 | 60.00 | |
| Social Democratic Labour Party | 9,560 | 24.54 | |
| Democratic Unionist Party | 8,654 | 22.21 | |
| Alliance Party | 6,711 | 17.23 | |
| Sinn Féin | 5,402 | 13.87 | |
| Ulster Unionist Party | 3,549 | 9.11 | |
| Green Party | 2,238 | 5.74 | |
| UK Independence Party | 1,900 | 4.88 | |
| Conservative & Unionist Party | 582 | 1.49 | |
| Workers Party | 361 | 0.93 | |
| Majority | 906 | 2.33 | |
| 8 June 2017 | 43,705/66,105 | 66.11 | |
| Democratic Unionist Party | 13,299 | 30.43 | |
| Social Democratic Labour Party | 11,303 | 25.86 | |
| Alliance Party | 7,946 | 18.18 | |
| Sinn Féin | 7,143 | 16.34 | |
| Green Party | 2,241 | 5.13 | |
| Ulster Unionist Party | 1,527 | 3.49 | |
| Conservative & Unionist Party | 246 | 0.56 | |
| Majority | 1,996 | 4.57 | |
| 12 December 2019 | 47,352/69,984 | 67.66 | |
| Social Democratic Labour Party | 27,079 | 57.19 | |
| Democratic Unionist Party | 11,678 | 24.66 | |
| Alliance Party | 6,786 | 14.33 | |
| Ulster Unionist Party | 1,259 | 2.66 | |
| Aontu | 550 | 1.16 | |
| Majority | 15,401 | 32.52 | |