# South Down

South Northern Ireland. About 106,539 people (mid-2024 estimate) in 1,122 square kilometres.

Chris Hazzard has been the Sinn Féin MP for South Down since July 2024. They won by 9,280 votes on a 59.3% turnout.

Constituency. Code N05000015. In: [Northern Ireland](https://openindex.co.uk/northern-ireland)

## MP and the 2024 result

Chris Hazzard has been the Sinn Féin MP for South Down since July 2024.
They won by 9,280 votes on a 59.3% turnout.

MP: [Chris Hazzard](https://members.parliament.uk/member/4636) (Sinn Féin).

### General election, 4 July 2024: South Down

| Candidate | Party | Votes | Share |
| --- | --- | --- | --- |
| Chris Hazzard (elected) | Sinn Féin | 19,698 | 43.5% |
| Colin McGrath | Social Democratic & Labour Party | 10,418 | 23.0% |
| Diane Forsythe | Democratic Unionist Party | 7,349 | 16.2% |
| Andrew McMurray | Alliance | 3,187 | 7.0% |
| Jim Wells | Traditional Unionist Voice | 1,893 | 4.2% |
| Michael O'Loan | Ulster Unionist Party | 1,411 | 3.1% |
| Rosemary McGlone | Aontú | 797 | 1.8% |
| Declan Walsh | Green Party Northern Ireland | 444 | 1.0% |
| Hannah Westropp | Conservative | 46 | 0.1% |

Electorate 76,248. Turnout 59.3%. Majority 9,280 (20.5%). 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/3769

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: 20.5%** (July 2024). The winner in South Down had a majority of 20.5% of valid votes at the general election on 4 July 2024 (House of Commons Library). Joint 207th largest majority of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/south-down#f-ge2024-majority
- **Turnout, 2024 general election: 59.3%** (July 2024). Turnout in South Down at the general election on 4 July 2024 was 59.3% (House of Commons Library). Joint 298th lowest turnout of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/south-down#f-ge2024-turnout
- **Population: 105,241** (2021). South Down had 105,241 usual residents at the census (NISRA Census 2021). 226th 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/south-down#f-population
- **People in radon Affected Area squares: 85%** (2022). About 85% of people in South Down 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/south-down#f-radon-affected-share

## On the map

- [Radon Affected Area by constituency](https://openindex.co.uk/map/radon-affected-areas?place=N05000015) (Worked out by Open Index · 2022): About 85% of people in South Down 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=N05000015) (UK House Price Index · August 2026): Published for whole councils, so the map colours all of Newry, Mourne and Down, where most of this constituency lies. The outline is South Down.
- [Crime and ASB by council](https://openindex.co.uk/map/recorded-crime?place=N05000015) (Police recorded crime and outcomes (data.police.uk) · August 2026): Published for whole councils, so the map colours all of Newry, Mourne and Down, where most of this constituency lies. The outline is South Down.
- [Population by constituency](https://openindex.co.uk/map/population?place=N05000015) (Census 2021, England and Wales): South Down had 105,241 usual residents at the census.

## How South Down compares

Each constituency against every other constituency the measure covers.

| Measure | South Down | Rank | Compared with |
| --- | --- | --- | --- |
| Majority, 2024 general election | 20.5% | joint 207th largest majority | 650 constituencies, UK · Jul 2024 |
| Turnout, 2024 general election | 59.3% | joint 298th lowest turnout | 650 constituencies, UK · Jul 2024 |
| Population | 105,241 | 226th most populated | 650 constituencies, UK · 2021 |
| People in radon Affected Area squares | 85% | joint 140th most people in radon Affected Areas | 650 constituencies, UK · 2022 |

## What is the population of South Down?

South Down had 105,241 usual residents at the census.
South Down is the 226th most populated of 650 in the UK.

## Figures for the whole of Newry, Mourne and Down

Most of South Down lies in Newry, Mourne and Down. These figures are published for the whole of Newry, Mourne and Down, not for constituencies, so they describe the council and not South Down itself. [See Newry, Mourne and Down](https://openindex.co.uk/newry-mourne-and-down)

- **Average house price: £220,572** (August 2026). Newry, Mourne and Down’s average house price was £220,572 in August 2026 (HM Land Registry). Up 12.8% in a year. Source: UK House Price Index, August 2026. Published 21 October 2026.
- **Population estimate: 182,884** (2025). Newry, Mourne and Down’s population was an estimated 182,884 in mid-2025 (ONS population estimates). Down 0.1% in a year. Source: Mid-year population estimates, 2025. Published 1 October 2026.
- **Female life expectancy: 83.2 years** (2022 to 2024). A baby girl born in Newry, Mourne and Down could expect to live 83.2 years, based on deaths in 2022 to 2024 (ONS life expectancy). UK 83.0 years. Source: Life expectancy for local areas of the UK, 2022 to 2024. Published 10 December 2025.
- **Gigabit broadband coverage: 95.1%** (January 2026). In Newry, Mourne and Down, 95.1% of homes and businesses could get gigabit-capable broadband in January 2026 (Ofcom). UK 87.8%. Source: Connected Nations (Ofcom), January 2026. Published 13 May 2026.

## South Down in brief

The winner in South Down had a majority of 20.5% of valid votes at the general election on 4 July 2024.
Turnout in South Down at the general election on 4 July 2024 was 59.3%.
South Down had 105,241 usual residents at the census.
About 85% of people in South Down live in a 1 km square that the radon atlas marks as a radon Affected Area.

## About

- Type: Constituency
- Code: N05000015
- Council: [Newry, Mourne and Down †](https://openindex.co.uk/newry-mourne-and-down)
- Nation: [Northern Ireland](https://openindex.co.uk/northern-ireland)
- Area: 1,122 km²
- People, mid-2024: 106,539*
- Wards: 23
- Middle areas: 41
- Neighbourhoods: 188

* 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

[Strangford](https://openindex.co.uk/constituency/strangford), [Newry and Armagh](https://openindex.co.uk/constituency/newry-and-armagh), [Lagan Valley](https://openindex.co.uk/constituency/lagan-valley), [Upper Bann](https://openindex.co.uk/constituency/upper-bann)

## Similar places

Constituencies with the closest mix of age and density. [South Antrim](https://openindex.co.uk/constituency/south-antrim), [West Tyrone](https://openindex.co.uk/constituency/west-tyrone), [Newry and Armagh](https://openindex.co.uk/constituency/newry-and-armagh), [Lagan Valley](https://openindex.co.uk/constituency/lagan-valley), [Fermanagh and South Tyrone](https://openindex.co.uk/constituency/fermanagh-and-south-tyrone), [Mid Ulster](https://openindex.co.uk/constituency/mid-ulster).

## Latest updates for South Down

- August 2026 house prices published: HM Land Registry and partners · Oct 2026.
- September 2026 rent published: ONS private rents · Oct 2026.
- Nitrogen dioxide (NO2) updated: Defra · Oct 2026.
- 2025 population published: ONS population estimates · Oct 2026.

The same figures as JSON: https://openindex.co.uk/v1/places/N05000015

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/constituency/south-down, or to one figure with its anchor, https://openindex.co.uk/constituency/south-down#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, https://doi.org/10.5281/zenodo.23508848. The HTML page: https://openindex.co.uk/constituency/south-down