| Mitcham and Morden | |
|---|---|
| Borough constituency for the House of Commons | |
![]() Interactive map of boundaries from 2024 | |
Location in Greater London | |
| County | Greater London |
| Electorate | 76,877 (March 2020)[1] |
| Major settlements | Colliers Wood, Mitcham, Morden and Merton |
| Current constituency | |
| Created | 1974 (1974) |
| Member of Parliament | Siobhain McDonagh (Labour) |
| Seats | One |
| Created from | Mitcham Merton & Morden |
Mitcham and Morden is a constituency[n 1] in Greater London represented in the House of Commons of the UK Parliament since 1997 by Dame Siobhain McDonagh of the Labour Party.[n 2]
Constituency profile
Mitcham and Morden is a constituency in the Borough of Merton in Greater London, located around 8 miles (13 km) south of the centre of London. It covers the neighbourhoods of Mitcham, Lower Morden, Pollards Hill, Colliers Wood and part of central Morden.
This is a relatively dense suburban constituency that was mostly developed in the interwar period and consists mainly of terraced houses and low-rise flats. Mitcham retains some village-like characteristics with many green spaces including the large Mitcham Common, although there is some deprivation here with council housing developments and industrial estates. Mitcham contains two train stations and is connected to the Tramlink network, although only Morden is served by the London Underground. Lower Morden is the most affluent area of the constituency with many large semi-detached properties.[2] House prices across the constituency are generally lower than the rest of London but higher than the national average.[3]
Mitcham and Morden has a large working-age population and relatively few retirees.[4] In general, residents have average levels of education and homeownership. Levels of household income and child poverty are similar to the rest of London.[3][5] A high proportion of residents work in the retail, education and construction sectors,[6] and the percentage of residents claiming unemployment benefits is high.[5]
White people made up 52% of the population at the 2021 census. Around one-third of the White population are of non-British origin, including large Polish and South African communities.[7][8] Asians were the largest ethnic minority group at 21%, many of whom were of Sri Lankan origin. Black people were 16% of the population, mostly concentrated in Pollards Hill where they made up around one-third of residents.[9]
At the local borough council, almost all seats in the constituency are represented by the Labour Party, although some Liberal Democrats were elected in Lower Morden. An estimated 54% of voters in Mitcham and Morden supported remaining in the European Union in the 2016 referendum, a lower percentage than the rest of London but higher than the UK-wide figure of 48%.[3]
History
The constituency was created in 1974 from the former seats of Mitcham and Merton & Morden.
Between 1974 and 1982 it was represented by Bruce Douglas-Mann who was elected as a Labour MP but defected in 1982 to the Social Democratic Party (SDP). Douglas-Mann was the sole SDP defector to resign his seat; he sought immediate re-election.
In the by-election Douglas-Mann triggered in May 1982, during the Falklands War, Angela Rumbold (Con) was elected. Rumbold's gain was the last time the Conservative Party would gain (as opposed to hold) at a by-election until 22 May 2008 when Edward Timpson won the Crewe and Nantwich by-election.
At the 1997 general election the seat was won by the Labour Party's Siobhain McDonagh. At the 2001, 2005 and 2010 General Elections, she was re-elected, in the latter election polling the 26th highest share of the vote for the party of the 631 seats contested.[10]
The 2015 re-election of McDonagh made the seat the 41st safest of Labour's 232 seats by percentage of majority and 14th safest in the capital.[11] The seat is one of the capital's two seats in which its majority in 2015 surpassed the Labour Party's landslide 1997 victory (the other being Ilford South).
Boundaries
Historic
1974–1983: The London Borough of Merton wards of Mitcham Central, Mitcham East, Mitcham North, Mitcham South, Mitcham West, Morden, and Ravensbury.
1983–2010: Upon redrawing of most of the local government wards, the London Borough of Merton wards of Colliers Wood, Figge's Marsh, Graveney, Lavender, Longthornton, Lower Morden, Phipps Bridge, Pollards Hill, Ravensbury, and St Helier.
2010–2024: As above except Cricket Green ward replaced Phipps Bridge and Lavender ward was renamed Lavender Fields following a local authority boundary review.
Current
Further to the 2023 review of Westminster constituencies, which came into effect for the 2024 general election, the constituency was expanded to include the Cannon Hill ward, transferred from Wimbledon.[12]
Following this change, as well as reflecting the 2022 local government review, the constituency now comprises the following:
- The London Borough of Merton wards of: Cannon Hill, Colliers Wood, Cricket Green, Figge's Marsh, Graveney, Lavender Fields, Longthornton, Lower Morden, Merton Park, Pollards Hill, Ravensbury, and St Helier.
Members of Parliament
| Election | Member[13] | Party | |
|---|---|---|---|
| February 1974 | Bruce Douglas-Mann | Labour | |
| 1981 | SDP | ||
| 1982 by-election | Angela Rumbold | Conservative | |
| 1997 | Siobhain McDonagh | Labour | |
Election results

Elections in the 2020s
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Labour | Siobhain McDonagh | 25,085 | 55.4 | −2.1 | |
| Conservative | Ellie Cox | 6,324 | 14.0 | −12.7 | |
| Green | Pippa Maslin | 4,635 | 10.2 | +8.0 | |
| Reform | Ruth Price | 4,135 | 9.1 | +6.8 | |
| Liberal Democrats | Jenifer Gould | 3,622 | 8.0 | −2.8 | |
| Workers Party | Mehmood Jamshed | 1,091 | 2.4 | N/A | |
| CPA | Des Coke | 363 | 0.8 | +0.4 | |
| Majority | 18,761 | 41.4 | +10.6 | ||
| Turnout | 45,255 | 58.6 | –8.6 | ||
| Registered electors | 77,272 | ||||
| Labour hold | Swing | ||||
Elections in the 2010s
| 2019 notional result[15] | |||
|---|---|---|---|
| Party | Vote | % | |
| Labour | 29,671 | 57.5 | |
| Conservative | 13,792 | 26.7 | |
| Liberal Democrats | 5,592 | 10.8 | |
| Brexit Party | 1,202 | 2.3 | |
| Green | 1,160 | 2.2 | |
| Others | 216 | 0.4 | |
| Turnout | 51,633 | 67.2 | |
| Electorate | 76,877 | ||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Labour | Siobhain McDonagh | 27,964 | 61.1 | −7.6 | |
| Conservative | Toby Williams | 11,482 | 25.1 | +0.9 | |
| Liberal Democrats | Luke Taylor | 3,717 | 8.1 | +5.0 | |
| Brexit Party | Jeremy Maddocks | 1,202 | 2.6 | New | |
| Green | Pippa Maslin | 1,160 | 2.5 | +1.2 | |
| CPA | Des Coke | 216 | 0.5 | 0.0 | |
| Majority | 16,482 | 36.0 | −8.5 | ||
| Turnout | 45,741 | 65.3 | −4.7 | ||
| Registered electors | 68,705 | ||||
| Labour hold | Swing | -4.2 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Labour | Siobhain McDonagh | 33,039 | 68.7 | +8.0 | |
| Conservative | Alicia Kearns | 11,664 | 24.2 | +1.0 | |
| Liberal Democrats | Claire Mathys | 1,494 | 3.1 | 0.0 | |
| UKIP | Richard Hilton | 1,054 | 2.2 | −7.3 | |
| Green | Laura Collins | 644 | 1.3 | −1.9 | |
| CPA | Des Coke | 223 | 0.5 | 0.0 | |
| Majority | 21,375 | 44.5 | +7.0 | ||
| Turnout | 48,118 | 70.0 | +4.1 | ||
| Registered electors | 68,705 | ||||
| Labour hold | Swing | +3.45 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Labour | Siobhain McDonagh | 27,380 | 60.7 | +4.2 | |
| Conservative | Paul Holmes | 10,458 | 23.2 | −2.0 | |
| UKIP | Richard Hilton | 4,287 | 9.5 | +7.5 | |
| Green | Mason Redding | 1,422 | 3.2 | +2.3 | |
| Liberal Democrats | Diana Coman | 1,378 | 3.1 | −8.8 | |
| CPA | Des Coke | 217 | 0.5 | New | |
| Majority | 16,922 | 37.5 | +6.2 | ||
| Turnout | 45,142 | 65.9 | −1.1 | ||
| Registered electors | 68,474 | ||||
| Labour hold | Swing | +3.1 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Labour | Siobhain McDonagh | 24,722 | 56.4 | –0.3 | |
| Conservative | Melanie Hampton | 11,056 | 25.2 | +0.5 | |
| Liberal Democrats | Diana Coman | 5,202 | 11.9 | −1.9 | |
| BNP | Tony Martin | 1,386 | 3.2 | New | |
| UKIP | Andrew Mills | 857 | 2.0 | New | |
| Green | Smarajit Roy | 381 | 0.9 | −2.6 | |
| Independent | Rathy Alagaratnam | 155 | 0.4 | –0.1 | |
| Independent | Ernest Redgrave | 38 | 0.1 | New | |
| Majority | 13,666 | 31.3 | –0.9 | ||
| Turnout | 43,797 | 66.4 | +5.2 | ||
| Registered electors | 65,939 | ||||
| Labour hold | Swing | −0.4 | |||
Elections in the 2000s
| 2005 notional result | |||
|---|---|---|---|
| Party | Vote | % | |
| Labour | 22,562 | 55.8 | |
| Conservative | 9,820 | 24.7 | |
| Liberal Democrats | 5,479 | 13.8 | |
| Others | 1,885 | 4.7 | |
| Turnout | 39,746 | 61.2 | |
| Electorate | 64,914 | ||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Labour | Siobhain McDonagh | 22,489 | 56.4 | −4.0 | |
| Conservative | Andrew Shellhorn | 9,929 | 24.9 | +0.8 | |
| Liberal Democrats | Jo A.E. Christie-Smith | 5,583 | 14.0 | +3.9 | |
| Green | Thomas Walsh | 1,395 | 3.5 | +1.1 | |
| Veritas | Adrian Roberts | 286 | 0.7 | New | |
| Independent | Rathy Alagaratnam | 186 | 0.5 | New | |
| Majority | 12,560 | 31.5 | –5.8 | ||
| Turnout | 39,868 | 61.2 | +3.4 | ||
| Registered electors | 65,148 | ||||
| Labour hold | Swing | −2.4 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Labour | Siobhain McDonagh | 22,936 | 60.4 | +2.0 | |
| Conservative | Henry Stokes | 9,151 | 24.1 | −5.6 | |
| Liberal Democrats | Nicholas Harris | 3,820 | 10.1 | +2.5 | |
| Green | Thomas Walsh | 926 | 2.4 | +1.5 | |
| BNP | John Tyndall | 642 | 1.7 | +0.6 | |
| UKIP | Adrian Roberts | 486 | 1.3 | +1.1 | |
| Majority | 13,785 | 36.3 | +7.6 | ||
| Turnout | 37,961 | 57.8 | −15.5 | ||
| Registered electors | 65,671 | ||||
| Labour hold | Swing | +3.8 | |||
Elections in the 1990s
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Labour | Siobhain McDonagh | 27,984 | 58.4 | +15.9 | |
| Conservative | Angela Rumbold | 14,243 | 29.7 | −16.8 | |
| Liberal Democrats | Nicholas Harris | 3,632 | 7.6 | −1.6 | |
| Referendum | Peter J. Isaacs | 810 | 1.7 | New | |
| BNP | Linda Miller | 521 | 1.1 | New | |
| Green | Thomas Walsh | 415 | 0.9 | −0.4 | |
| Independent | Krishnapillai Vasan | 144 | 0.3 | New | |
| UKIP | John R. Barrett | 117 | 0.2 | New | |
| Anti-Corruption | Nigel T.V. Dixon | 80 | 0.2 | New | |
| Majority | 13,741 | 28.7 | N/A | ||
| Turnout | 47,946 | 73.3 | −7.0 | ||
| Registered electors | 65,402 | ||||
| Labour gain from Conservative | Swing | –16.0 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Conservative | Angela Rumbold | 23,789 | 46.5 | −1.7 | |
| Labour | Siobhain McDonagh | 22,055 | 43.1 | +7.9 | |
| Liberal Democrats | John C. Field | 4,687 | 9.2 | −7.6 | |
| Green | Thomas J. Walsh | 655 | 1.3 | New | |
| Majority | 1,734 | 3.4 | −9.6 | ||
| Turnout | 51,186 | 80.3 | +4.6 | ||
| Registered electors | 63,273 | ||||
| Conservative hold | Swing | −4.8 | |||
Elections in the 1980s
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Conservative | Angela Rumbold | 23,002 | 48.2 | +5.5 | |
| Labour | Siobhain McDonagh | 16,819 | 35.2 | +6.4 | |
| SDP | Bruce Douglas-Mann | 7,930 | 16.6 | −10.8 | |
| Majority | 6,183 | 12.9 | –0.9 | ||
| Turnout | 47,751 | 75.7 | +2.6 | ||
| Registered electors | 63,089 | ||||
| Conservative hold | Swing | −0.5 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Conservative | Angela Rumbold | 19,827 | 42.7 | −1.2 | |
| Labour | David Nicholas | 13,376 | 28.8 | −16.4 | |
| SDP | Bruce Douglas-Mann | 12,720 | 27.4 | +18.5 | |
| National Front | J.R. Perryman | 539 | 1.2 | −0.9 | |
| Majority | 6,451 | 13.9 | N/A | ||
| Turnout | 46,462 | 73.1 | –3.7 | ||
| Registered electors | 63,535 | ||||
| Conservative hold | Swing | +7.6 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Conservative | Angela Rumbold | 13,306 | 43.4 | −0.5 | |
| SDP | Bruce Douglas-Mann | 9,032 | 29.4 | +20.6 | |
| Labour | David Nicholas | 7,475 | 24.4 | −20.8 | |
| National Front | Joseph Pearce | 547 | 1.8 | −0.2 | |
| Independent Liberal | Edward Larkin | 123 | 0.4 | New | |
| Ethnic Minority Candidate | Roy Sawh | 84 | 0.3 | New | |
| Democratic Monarchist | Bill Boaks | 66 | 0.2 | New | |
| COPS | Jitendra Bardwaj | 22 | 0.1 | New | |
| Computer Democrat | Christopher Farnsworth | 18 | 0.0 | New | |
| Majority | 4,274 | 13.9 | N/A | ||
| Turnout | 30,673 | 48.5 | –28.4 | ||
| Registered electors | 63,259 | ||||
| Conservative gain from Labour | Swing | +10.2 | |||
Elections in the 1970s
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Labour | Bruce Douglas-Mann | 21,668 | 45.2 | −3.0 | |
| Conservative | David Samuel[35] | 21,050 | 43.9 | +9.0 | |
| Liberal | Ronald Locke[35] | 4,258 | 8.9 | −7.1 | |
| National Front | John Perryman[35] | 966 | 2.0 | New | |
| Majority | 618 | 1.3 | −12.0 | ||
| Turnout | 47,942 | 76.9 | +5.9 | ||
| Registered electors | 62,365 | ||||
| Labour hold | Swing | −6.0 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Labour | Bruce Douglas-Mann | 22,384 | 48.2 | +5.7 | |
| Conservative | D. Samuel | 16,193 | 34.9 | −1.3 | |
| Liberal | M. Simpson | 7,429 | 16.0 | −4.4 | |
| Communist | Sid French | 281 | 0.6 | −0.4 | |
| Independent | G. Giddins | 106 | 0.2 | New | |
| Air Road Public Safety White Resident | Bill Boaks | 68 | 0.2 | New | |
| Majority | 6,191 | 13.3 | +7.0 | ||
| Turnout | 46,461 | 71.0 | −8.0 | ||
| Registered electors | 65,398 | ||||
| Labour hold | Swing | +3.5 | |||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Labour | Bruce Douglas-Mann | 21,771 | 42.5 | –8.4 | |
| Conservative | David Harris | 18,546 | 36.2 | –11.7 | |
| Liberal | Peter Spratling | 10,462 | 20.4 | New | |
| Communist | Sid French | 507 | 1.0 | New | |
| Majority | 3,225 | 6.3 | +3.3 | ||
| Turnout | 51,286 | 79.0 | +9.0 | ||
| Registered electors | 64,894 | ||||
| Labour hold | Swing | +1.6 | |||
| 1970 notional result[36] | |||
|---|---|---|---|
| Party | Vote | % | |
| Labour | 23,600 | 50.9 | |
| Conservative | 22,200 | 47.8 | |
| Others | 600 | 1.3 | |
| Turnout | 46,400 | 70.0 | |
| Electorate | 66,271 | ||
See also
Notes
- A borough constituency (for the purposes of election expenses and type of returning officer)
- As with all constituencies, the constituency elects one Member of Parliament (MP) by the first past the post system of election at least every five years.
References
- "The 2023 Review of Parliamentary Constituency Boundaries in England – Volume two: Constituency names, designations and composition – London". Boundary Commission for England. Retrieved 22 June 2024.
- "Constituency data: Deprivation in England". commonslibrary.parliament.uk. Retrieved 27 May 2026.
- "Seat Details - Mitcham and Morden". electoralcalculus.co.uk. Retrieved 27 May 2026.
- "Constituency data: Population, by age". commonslibrary.parliament.uk. Retrieved 27 May 2026.
- "Constituency dashboard". House of Commons Library. Retrieved 27 May 2026.
- "Constituency data: businesses and industries". commonslibrary.parliament.uk. Retrieved 27 May 2026.
- "Country of birth, Poland - Census Maps, ONS". ons.gov.uk. Retrieved 27 May 2026.
- "Country of birth, South Africa - Census Maps, ONS". ons.gov.uk. Retrieved 27 May 2026.
- "2021 census results: Ethnic groups in your constituency". commonslibrary.parliament.uk. 4 July 2024. Retrieved 27 May 2026.
- "General Election Results from the Electoral Commission".
- "Labour Members of Parliament 2015". UK Political.info. Archived from the original on 29 September 2018.
- "The Parliamentary Constituencies Order 2023". Schedule 1 Part 3 London region.
- Leigh Rayment's Historical List of MPs – Constituencies beginning with "M" (part 3)
- "Mitcham & Morden Parliamentary constituency". BBC News. BBC. Retrieved 7 July 2024.
- "Notional results for a UK general election on 12 December 2019". Rallings & Thrasher, Professor David Denver (Scotland), Nicholas Whyte (NI) for Sky News, PA, BBC News and ITV News. UK Parliament. Retrieved 11 July 2024.
- "Mitcham & Morden Parliamentary constituency". BBC News. BBC. Retrieved 23 November 2019.
- "Merton Council Statement of Persons Nominated Mitcham and Morden General Election 2017" (PDF). Merton Council. Retrieved 13 April 2017.
- "Mitcham & Morden parliamentary constituency". BBC News.
- "General Election 2017: results and analysis" (PDF). Archived from the original (PDF) on 25 February 2018.
- "Election Data 2015". Electoral Calculus. Archived from the original on 17 October 2015. Retrieved 17 October 2015.
- Services, CS-Democracy (7 May 2015). "Councillors". democracy.merton.gov.uk.
- "Election Data 2010". Electoral Calculus. Archived from the original on 26 July 2013. Retrieved 17 October 2015.
- "Election Data 2005". Electoral Calculus. Archived from the original on 15 October 2011. Retrieved 18 October 2015.
- "Mitcham & Morden". Electoral Commission. Retrieved 5 March 2017.
- "Election Data 2001". Electoral Calculus. Archived from the original on 15 October 2011. Retrieved 18 October 2015.
- "Election Data 1997". Electoral Calculus. Archived from the original on 15 October 2011. Retrieved 18 October 2015.
- "Politics Resources". Election 1997. Politics Resources. 1 May 1997. Retrieved 25 December 2010.
- C. Rallings & M. Thrasher, The Media Guide to the New Parliamentary Constituencies, p.120 (Plymouth: LGC Elections Centre, 1995)
- "'Mitcham and Morden', May 1997 -". ElectionWeb Project. Cognitive Computing Limited. Retrieved 18 May 2016.
- "Election Data 1992". Electoral Calculus. Archived from the original on 15 October 2011. Retrieved 18 October 2015.
- "Politics Resources". Election 1992. Politics Resources. 9 April 1992. Archived from the original on 24 July 2011. Retrieved 6 December 2010.
- "Election Data 1987". Electoral Calculus. Archived from the original on 15 October 2011. Retrieved 18 October 2015.
- "Election Data 1983". Electoral Calculus. Archived from the original on 15 October 2011. Retrieved 18 October 2015.
- Boothroyd, David. "Results of Byelections in the 1979-83 Parliament". United Kingdom Election Results. Retrieved 19 September 2015.
- Election Expenses. Parliament of the United Kingdom. 1980. p. 18. ISBN 0102374805.
- Michael Stead. "1970 notional general election & February 1974 general election". BBC. Retrieved 18 March 2025.
External links
- Politics Resources (Election results from 1922 onwards)
- Electoral Calculus (Election results from 1955 onwards)
- Mitcham and Morden UK Parliament constituency (boundaries April 1997 – April 2010) at MapIt UK
- Mitcham and Morden UK Parliament constituency (boundaries April 2010 – May 2024) at MapIt UK
- Mitcham and Morden UK Parliament constituency (boundaries from June 2024) at MapIt UK

