# South Antrim

North east Northern Ireland. About 107,805 people (mid-2024 estimate) in 795 square kilometres.

Robin Swann has been the Ulster Unionist Party MP for South Antrim since July 2024. They won by 7,512 votes on a 55.7% turnout.

Constituency. Code N05000014. In: [Northern Ireland](https://openindex.co.uk/northern-ireland)

## MP and the 2024 result

Robin Swann has been the Ulster Unionist Party MP for South Antrim since July 2024.
They won by 7,512 votes on a 55.7% turnout.

MP: [Robin Swann](https://members.parliament.uk/member/5319) (Ulster Unionist Party).

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

| Candidate | Party | Votes | Share |
| --- | --- | --- | --- |
| Robin Swann (elected) | Ulster Unionist Party | 16,311 | 38.0% |
| Paul Girvan | Democratic Unionist Party | 8,799 | 20.5% |
| Declan Kearney | Sinn Féin | 8,034 | 18.7% |
| John Blair | Alliance | 4,574 | 10.7% |
| Mel Lucas | Traditional Unionist Voice | 2,693 | 6.3% |
| Roisin Lynch | Social Democratic & Labour Party | 1,589 | 3.7% |
| Lesley Veronica | Green Party Northern Ireland | 541 | 1.3% |
| Siobhan McErlean | Aontú | 367 | 0.9% |

Electorate 77,058. Turnout 55.7%. Majority 7,512 (17.5%). 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/3762

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: 17.5%** (July 2024). The winner in South Antrim had a majority of 17.5% of valid votes at the general election on 4 July 2024 (House of Commons Library). Joint 255th largest majority of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/south-antrim#f-ge2024-majority
- **Turnout, 2024 general election: 55.7%** (July 2024). Turnout in South Antrim at the general election on 4 July 2024 was 55.7% (House of Commons Library). Joint 180th lowest turnout of 650. Source: UK Parliament election results, July 2024. Published 4 July 2024. https://openindex.co.uk/constituency/south-antrim#f-ge2024-turnout
- **Population: 106,441** (2021). South Antrim had 106,441 usual residents at the census (NISRA Census 2021). 202nd 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-antrim#f-population
- **People in radon Affected Area squares: 3%** (2022). About 3% of people in South Antrim 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-antrim#f-radon-affected-share

## On the map

- [Radon Affected Area by constituency](https://openindex.co.uk/map/radon-affected-areas?place=N05000014) (Worked out by Open Index · 2022): About 3% of people in South Antrim 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=N05000014) (UK House Price Index · August 2026): Published for whole councils, so the map colours all of Antrim and Newtownabbey, where most of this constituency lies. The outline is South Antrim.
- [Crime and ASB by council](https://openindex.co.uk/map/recorded-crime?place=N05000014) (Police recorded crime and outcomes (data.police.uk) · August 2026): Published for whole councils, so the map colours all of Antrim and Newtownabbey, where most of this constituency lies. The outline is South Antrim.
- [Population by constituency](https://openindex.co.uk/map/population?place=N05000014) (Census 2021, England and Wales): South Antrim had 106,441 usual residents at the census.

## How South Antrim compares

Each constituency against every other constituency the measure covers.

| Measure | South Antrim | Rank | Compared with |
| --- | --- | --- | --- |
| Majority, 2024 general election | 17.5% | joint 255th largest majority | 650 constituencies, UK · Jul 2024 |
| Turnout, 2024 general election | 55.7% | joint 180th lowest turnout | 650 constituencies, UK · Jul 2024 |
| Population | 106,441 | 202nd most populated | 650 constituencies, UK · 2021 |
| People in radon Affected Area squares | 3% | joint 139th fewest people in radon Affected Areas | 650 constituencies, UK · 2022 |

## What is the population of South Antrim?

South Antrim had 106,441 usual residents at the census.
South Antrim is the 202nd most populated of 650 in the UK.

## Figures for the whole of Antrim and Newtownabbey

Most of South Antrim lies in Antrim and Newtownabbey. These figures are published for the whole of Antrim and Newtownabbey, not for constituencies, so they describe the council and not South Antrim itself. [See Antrim and Newtownabbey](https://openindex.co.uk/antrim-and-newtownabbey)

- **Average house price: £206,120** (August 2026). Antrim and Newtownabbey’s average house price was £206,120 in August 2026 (HM Land Registry). Up 8.8% in a year. Source: UK House Price Index, August 2026. Published 21 October 2026.
- **Population estimate: 148,487** (2025). Antrim and Newtownabbey’s population was an estimated 148,487 in mid-2025 (ONS population estimates). Up 0.3% in a year. Source: Mid-year population estimates, 2025. Published 1 October 2026.
- **Female life expectancy: 82.5 years** (2022 to 2024). A baby girl born in Antrim and Newtownabbey could expect to live 82.5 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: 97.1%** (January 2026). In Antrim and Newtownabbey, 97.1% 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 Antrim in brief

The winner in South Antrim had a majority of 17.5% of valid votes at the general election on 4 July 2024.
Turnout in South Antrim at the general election on 4 July 2024 was 55.7%.
South Antrim had 106,441 usual residents at the census.
About 3% of people in South Antrim live in a 1 km square that the radon atlas marks as a radon Affected Area.

## About

- Type: Constituency
- Code: N05000014
- Council: [Antrim and Newtownabbey †](https://openindex.co.uk/antrim-and-newtownabbey)
- Nation: [Northern Ireland](https://openindex.co.uk/northern-ireland)
- Area: 795 km²
- People, mid-2024: 107,805*
- Wards: 28
- Middle areas: 46
- Neighbourhoods: 208

* 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

[Lagan Valley](https://openindex.co.uk/constituency/lagan-valley), [East Antrim](https://openindex.co.uk/constituency/east-antrim), [North Antrim](https://openindex.co.uk/constituency/north-antrim), [Mid Ulster](https://openindex.co.uk/constituency/mid-ulster), [Belfast North](https://openindex.co.uk/constituency/belfast-north), [Belfast West](https://openindex.co.uk/constituency/belfast-west)

## Similar places

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

## Latest updates for South Antrim

- 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/N05000014

## How to cite

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