# Mitcham and Morden

South London. About 126,180 people (mid-2024 estimate) in 19 square kilometres.

Dame Siobhain McDonagh has been the Labour MP for Mitcham and Morden since July 2024. They won by 18,761 votes on a 58.6% turnout.

Constituency. Code E14001371. In: [London](https://openindex.co.uk/london)

## MP and the 2024 result

Dame Siobhain McDonagh has been the Labour MP for Mitcham and Morden since July 2024.
They won by 18,761 votes on a 58.6% turnout.

MP: [Dame Siobhain McDonagh](https://members.parliament.uk/member/193) (Labour).

### General election, 4 July 2024: Mitcham and Morden

| Candidate | Party | Votes | Share |
| --- | --- | --- | --- |
| Siobhain McDonagh (elected) | Labour | 25,085 | 55.4% |
| Ellie Cox | Conservative | 6,324 | 14.0% |
| Pippa Maslin | Green Party | 4,635 | 10.2% |
| Ruth Price | Reform UK | 4,135 | 9.1% |
| Jenifer Gould | Liberal Democrat | 3,622 | 8.0% |
| Mehmood Jamshed | Workers Party of Britain | 1,091 | 2.4% |
| Desmond Coke | Christian Peoples Alliance | 363 | 0.8% |

Electorate 77,282. Turnout 58.6%. Majority 18,761 (41.5%). Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: House of Commons Library, UK Parliament election results. https://electionresults.parliament.uk/elections/3633

MP as of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

## Key figures

- **Majority, 2024 general election: 41.5%** (July 2024). The winner in Mitcham and Morden had a majority of 41.5% of valid votes at the general election on 4 July 2024 (House of Commons Library). 17th largest majority of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/mitcham-and-morden#f-ge2024-majority
- **Turnout, 2024 general election: 58.6%** (July 2024). Turnout in Mitcham and Morden at the general election on 4 July 2024 was 58.6% (House of Commons Library). Joint 274th lowest turnout of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/mitcham-and-morden#f-ge2024-turnout
- **Population: 123,749** (2021). Mitcham and Morden had 123,749 usual residents at the census (ONS Census 2021). 35th most populated of 650. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026. https://openindex.co.uk/constituency/mitcham-and-morden#f-population
- **People in radon Affected Area squares: 0%** (2022). About 0% of people in Mitcham and Morden live in a 1 km square that the radon atlas marks as a radon Affected Area. UK 44%. Source: Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. Published 1 December 2022. https://openindex.co.uk/constituency/mitcham-and-morden#f-radon-affected-share

## On the map

- [Radon Affected Area by constituency](https://openindex.co.uk/map/radon-affected-areas?place=E14001371) (Worked out by Open Index · 2022): About 0% of people in Mitcham and Morden live in a 1 km square that the radon atlas marks as a radon Affected Area.
- [Average house price by council](https://openindex.co.uk/map/house-prices?place=E14001371) (UK House Price Index · August 2026): Published for whole councils, so the map colours all of Merton, where most of this constituency lies. The outline is Mitcham and Morden.
- [Crime and ASB by council](https://openindex.co.uk/map/recorded-crime?place=E14001371) (Police recorded crime and outcomes (data.police.uk) · August 2026): Published for whole councils, so the map colours all of Merton, where most of this constituency lies. The outline is Mitcham and Morden.
- [Population by constituency](https://openindex.co.uk/map/population?place=E14001371) (Census 2021, England and Wales): Mitcham and Morden had 123,749 usual residents at the census.

## How Mitcham and Morden compares

Each constituency against every other constituency the measure covers.

| Measure | Mitcham and Morden | Rank | Compared with |
| --- | --- | --- | --- |
| Majority, 2024 general election | 41.5% | 17th largest majority | 650 constituencies, UK · Jul 2024 |
| Turnout, 2024 general election | 58.6% | joint 274th lowest turnout | 650 constituencies, UK · Jul 2024 |
| Population | 123,749 | 35th most populated | 650 constituencies, UK · 2021 |
| People in radon Affected Area squares | 0% | joint fewest people in radon Affected Areas | 650 constituencies, UK · 2022 |

## What is the population of Mitcham and Morden?

Mitcham and Morden had 123,749 usual residents at the census.
Mitcham and Morden is the 35th most populated of 650 in the UK.

## Figures for the whole of Merton

Most of Mitcham and Morden lies in Merton. These figures are published for the whole of Merton, not for constituencies, so they describe the council and not Mitcham and Morden itself. [See Merton](https://openindex.co.uk/merton)

- **Average house price: £623,791** (August 2026). Merton’s average house price was £623,791 in August 2026 (HM Land Registry). Up 0.1% in a year. Source: UK House Price Index, August 2026. Published 21 October 2026.
- **Median full-time pay: £50,844** (2025). Full-time workers living in Merton earned a median of £50,844 in 2025 (ONS earnings survey). 12th highest paid of 348. Source: Annual Survey of Hours and Earnings, 2025. Published 23 October 2025.
- **House price to pay: 12.3×** (2025). A home in Merton costs 12.3 times local full-time pay. Joint 20th least affordable of 348. Source: Worked out by Open Index from the UK House Price Index and the ONS earnings survey. Published 21 October 2026.
- **Deprivation score: 14.4** (2025). Merton has a deprivation score of 14.4 in the English Indices of Deprivation 2025 (MHCLG). Joint 86th least deprived of 296. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025.

## Mitcham and Morden in brief

The winner in Mitcham and Morden had a majority of 41.5% of valid votes at the general election on 4 July 2024.
Turnout in Mitcham and Morden at the general election on 4 July 2024 was 58.6%.
Mitcham and Morden had 123,749 usual residents at the census.
About 0% of people in Mitcham and Morden live in a 1 km square that the radon atlas marks as a radon Affected Area.

## About

- Type: Constituency
- Code: E14001371
- Council: [Merton †](https://openindex.co.uk/merton)
- Region: [London](https://openindex.co.uk/london)
- Nation: [England](https://openindex.co.uk/england)
- Area: 18.68 km²
- People, mid-2024: 126,180*
- Wards: 11
- Middle areas: 14
- Neighbourhoods: 70
- Output areas: 350

* People: worked out by Open Index from neighbourhood estimates, shared out by where people lived at the census (by area in Northern Ireland). This area's edges do not follow neighbourhood edges, so the figure is close but not exact.
† Best fit: the council this constituency mostly lies in. Its edges do not follow it.

## Next door

[Wimbledon](https://openindex.co.uk/constituency/wimbledon), [Carshalton and Wallington](https://openindex.co.uk/constituency/carshalton-and-wallington), [Streatham and Croydon North](https://openindex.co.uk/constituency/streatham-and-croydon-north), [Sutton and Cheam](https://openindex.co.uk/constituency/sutton-and-cheam), [Tooting](https://openindex.co.uk/constituency/tooting), [Croydon West](https://openindex.co.uk/constituency/croydon-west)

## Similar places

Constituencies with the closest mix of age and density. [Birmingham Hall Green and Moseley](https://openindex.co.uk/constituency/birmingham-hall-green-and-moseley), [Brent West](https://openindex.co.uk/constituency/brent-west), [Ealing Central and Acton](https://openindex.co.uk/constituency/ealing-central-and-acton), [Harrow West](https://openindex.co.uk/constituency/harrow-west), [Ealing Southall](https://openindex.co.uk/constituency/ealing-southall), [Brentford and Isleworth](https://openindex.co.uk/constituency/brentford-and-isleworth).

## Latest updates for Mitcham and Morden

- August 2026 house prices published: HM Land Registry and partners · Oct 2026.
- September 2026 rent published: ONS private rents · Oct 2026.
- Dental practices updated: NHS England · Oct 2026.
- Schools updated: Ofsted · Oct 2026.

The same figures as JSON: https://openindex.co.uk/v1/places/E14001371

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/constituency/mitcham-and-morden, or to one figure with its anchor, https://openindex.co.uk/constituency/mitcham-and-morden#f-ge2024-majority.

Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it.

Snapshot 2026.10.9. The HTML page: https://openindex.co.uk/constituency/mitcham-and-morden