# Melksham and Devizes

The north east of the South West. About 95,393 people (mid-2024 estimate) in 418 square kilometres.

Brian Mathew has been the Liberal Democrat MP for Melksham and Devizes since July 2024. They won by 2,401 votes on a 69.7% turnout.

Constituency. Code E14001356. In: [South West](https://openindex.co.uk/south-west)

## MP and the 2024 result

Brian Mathew has been the Liberal Democrat MP for Melksham and Devizes since July 2024.
They won by 2,401 votes on a 69.7% turnout.

MP: [Brian Mathew](https://members.parliament.uk/member/5214) (Liberal Democrat).

### General election, 4 July 2024: Melksham and Devizes

| Candidate | Party | Votes | Share |
| --- | --- | --- | --- |
| Brian Mathew (elected) | Liberal Democrat | 20,031 | 39.1% |
| Michelle Donelan | Conservative | 17,630 | 34.4% |
| Malcolm Cupis | Reform UK | 6,726 | 13.1% |
| Kerry Postlewhite | Labour | 4,587 | 9.0% |
| Catherine Read | Green Party | 2,229 | 4.4% |

Electorate 73,482. Turnout 69.7%. Majority 2,401 (4.7%). 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/3613

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: 4.7%** (July 2024). The winner in Melksham and Devizes had a majority of 4.7% of valid votes at the general election on 4 July 2024 (House of Commons Library). Joint 105th smallest majority of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/melksham-and-devizes#f-ge2024-majority
- **Turnout, 2024 general election: 69.7%** (July 2024). Turnout in Melksham and Devizes at the general election on 4 July 2024 was 69.7% (House of Commons Library). Joint 36th highest turnout of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/melksham-and-devizes#f-ge2024-turnout
- **Population: 93,199** (2021). Melksham and Devizes had 93,199 usual residents at the census (ONS Census 2021). 91st least 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/melksham-and-devizes#f-population
- **People in radon Affected Area squares: 38%** (2022). About 38% of people in Melksham and Devizes 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/melksham-and-devizes#f-radon-affected-share

## On the map

- [Radon Affected Area by constituency](https://openindex.co.uk/map/radon-affected-areas?place=E14001356) (Worked out by Open Index · 2022): About 38% of people in Melksham and Devizes 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=E14001356) (UK House Price Index · August 2026): Published for whole councils, so the map colours all of Wiltshire, where most of this constituency lies. The outline is Melksham and Devizes.
- [Crime and ASB by council](https://openindex.co.uk/map/recorded-crime?place=E14001356) (Police recorded crime and outcomes (data.police.uk) · August 2026): Published for whole councils, so the map colours all of Wiltshire, where most of this constituency lies. The outline is Melksham and Devizes.
- [Population by constituency](https://openindex.co.uk/map/population?place=E14001356) (Census 2021, England and Wales): Melksham and Devizes had 93,199 usual residents at the census.

## How Melksham and Devizes compares

Each constituency against every other constituency the measure covers.

| Measure | Melksham and Devizes | Rank | Compared with |
| --- | --- | --- | --- |
| Majority, 2024 general election | 4.7% | joint 105th smallest majority | 650 constituencies, UK · Jul 2024 |
| Turnout, 2024 general election | 69.7% | joint 36th highest turnout | 650 constituencies, UK · Jul 2024 |
| Population | 93,199 | 91st least populated | 650 constituencies, UK · 2021 |
| People in radon Affected Area squares | 38% | joint 318th fewest people in radon Affected Areas | 650 constituencies, UK · 2022 |

## What is the population of Melksham and Devizes?

Melksham and Devizes had 93,199 usual residents at the census.
Melksham and Devizes is the 91st least populated of 650 in the UK.

## Figures for the whole of Wiltshire

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

- **Average house price: £328,102** (August 2026). Wiltshire’s average house price was £328,102 in August 2026 (HM Land Registry). Up 1.5% in a year. Source: UK House Price Index, August 2026. Published 21 October 2026.
- **Median full-time pay: £37,811** (2025). Full-time workers living in Wiltshire earned a median of £37,811 in 2025 (ONS earnings survey). 151st lowest paid of 348. Source: Annual Survey of Hours and Earnings, 2025. Published 23 October 2025.
- **House price to pay: 8.7×** (2025). A home in Wiltshire costs 8.7 times local full-time pay. Joint 98th 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: 13.6** (2025). Wiltshire has a deprivation score of 13.6 in the English Indices of Deprivation 2025 (MHCLG). 72nd least deprived of 296. Source: English Indices of Deprivation 2025, 2025. Published 30 October 2025.

## Melksham and Devizes in brief

The winner in Melksham and Devizes had a majority of 4.7% of valid votes at the general election on 4 July 2024.
Turnout in Melksham and Devizes at the general election on 4 July 2024 was 69.7%.
Melksham and Devizes had 93,199 usual residents at the census.
About 38% of people in Melksham and Devizes live in a 1 km square that the radon atlas marks as a radon Affected Area.

## About

- Type: Constituency
- Code: E14001356
- Council: [Wiltshire †](https://openindex.co.uk/wiltshire)
- Region: [South West](https://openindex.co.uk/south-west)
- Nation: [England](https://openindex.co.uk/england)
- Area: 418 km²
- People, mid-2024: 95,393*
- Wards: 19
- Middle areas: 11
- Neighbourhoods: 60
- Output areas: 312

* 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

[South West Wiltshire](https://openindex.co.uk/constituency/south-west-wiltshire), [Chippenham](https://openindex.co.uk/constituency/chippenham), [East Wiltshire](https://openindex.co.uk/constituency/east-wiltshire), [Frome and East Somerset](https://openindex.co.uk/constituency/frome-and-east-somerset), [Bath](https://openindex.co.uk/constituency/bath), [South Cotswolds](https://openindex.co.uk/constituency/south-cotswolds)

## Similar places

Constituencies with the closest mix of age and density. [South West Devon](https://openindex.co.uk/constituency/south-west-devon), [Maldon](https://openindex.co.uk/constituency/maldon), [Brigg and Immingham](https://openindex.co.uk/constituency/brigg-and-immingham), [Stone, Great Wyrley and Penkridge](https://openindex.co.uk/constituency/stone-great-wyrley-and-penkridge), [Truro and Falmouth](https://openindex.co.uk/constituency/truro-and-falmouth), [East Hampshire](https://openindex.co.uk/constituency/east-hampshire).

## Latest updates for Melksham and Devizes

- 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/E14001356

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/constituency/melksham-and-devizes, or to one figure with its anchor, https://openindex.co.uk/constituency/melksham-and-devizes#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/melksham-and-devizes