# Mountsandel North west Causeway Coast and Glens. About 4,329 people (mid-2024 estimate) in 3.1 square kilometres. Mountsandel had 4,559 usual residents at the census (NISRA Census 2021). Ward. Code N08000430. In: [Northern Ireland](https://openindex.co.uk/northern-ireland) › [Causeway Coast and Glens](https://openindex.co.uk/causeway-coast-and-glens) ## Key figures - **Population: 4,559** (2021). Mountsandel had 4,559 usual residents at the census (NISRA Census 2021). 2,367th least populated of 8,397. 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/causeway-coast-and-glens/ward/mountsandel#f-population - **People in radon Affected Area squares: 0%** (2022). About 0% of people in Mountsandel 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/causeway-coast-and-glens/ward/mountsandel#f-radon-affected-share - **Gigabit broadband coverage: 97.8%** (January 2026). In Mountsandel, 97.8% 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. https://openindex.co.uk/causeway-coast-and-glens/ward/mountsandel#f-gigabit-coverage - **Aged 15 to 64: 58.7%** (2021). 58.7% of residents in Mountsandel were aged 15 to 64 at the census (NISRA Census 2021). Joint 1,811th lowest of 8,397. 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/causeway-coast-and-glens/ward/mountsandel#f-age-15-to-64 ## On the map - [Radon Affected Area by ward](https://openindex.co.uk/map/radon-affected-areas#place=N08000430) (Worked out by Open Index · 2022): About 0% of people in Mountsandel 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=N08000430) (UK House Price Index · August 2026): Published for whole councils, so the map colours all of Causeway Coast and Glens. The outline is Mountsandel. - [Crime and ASB by ward](https://openindex.co.uk/map/recorded-crime#place=N08000430) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for Mountsandel. - [Population by ward](https://openindex.co.uk/map/population#place=N08000430) (Census 2021, England and Wales): Mountsandel had 4,559 usual residents at the census. ## How Mountsandel compares Each ward against every other ward the measure covers. | Measure | Mountsandel | Rank | Compared with | | --- | --- | --- | --- | | Population | 4,559 | 3rd most populated | 40 wards, Causeway Coast and Glens · 2021 | | People in radon Affected Area squares | 0% | joint fewest people in radon Affected Areas | 40 wards, Causeway Coast and Glens · 2022 | | Gigabit broadband coverage | 97.8% | 16th highest | 40 wards, Causeway Coast and Glens · Jan 2026 | | Aged 15 to 64 | 58.7% | joint 4th lowest | 40 wards, Causeway Coast and Glens · 2021 | ## Is Mountsandel safe? What police records show In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Mountsandel at a rate of 205.6 per 1,000 people. That compares with 57.5 per 1,000 people across Causeway Coast and Glens. Across Northern Ireland as a whole, the recorded crime rate was 70.2 per 1,000 people. In August 2026 alone, 99 cases of crime and anti-social behaviour were recorded in Mountsandel. In the 12 months to August 2026, the most common types were anti-social behaviour (357), violence and sexual offences (284) and criminal damage and arson (108). Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates. Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest. ## Figures for the whole of Causeway Coast and Glens These figures are published for the whole of Causeway Coast and Glens, not for each ward, so they describe all of Causeway Coast and Glens and not Mountsandel alone. [See Causeway Coast and Glens](https://openindex.co.uk/causeway-coast-and-glens) - **Average house price: £218,871** (August 2026). Causeway Coast and Glens’ average house price was £218,871 in August 2026 (HM Land Registry). Up 9.6% in a year. Source: UK House Price Index, August 2026. Published 21 October 2026. - **Population estimate: 141,752** (2025). Causeway Coast and Glens’ population was an estimated 141,752 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 Causeway Coast and Glens 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. - **Full-fibre broadband coverage: 93.6%** (January 2026). In Causeway Coast and Glens, 93.6% of homes and businesses could get full-fibre broadband in January 2026 (Ofcom). UK 81.0%. Source: Connected Nations (Ofcom), January 2026. Published 13 May 2026. ## Mountsandel in brief Mountsandel had 4,559 usual residents at the census. About 0% of people in Mountsandel live in a 1 km square that the radon atlas marks as a radon Affected Area. In Mountsandel, 97.8% of homes and businesses could get gigabit-capable broadband in January 2026. 58.7% of residents in Mountsandel were aged 15 to 64 at the census. ## About - Type: Ward - Code: N08000430 - Constituency: [East Londonderry †](https://openindex.co.uk/constituency/east-londonderry) - Council: [Causeway Coast and Glens](https://openindex.co.uk/causeway-coast-and-glens) - Nation: [Northern Ireland](https://openindex.co.uk/northern-ireland) - Area: 3.05 km² - People, mid-2024: 4,329* - Neighbourhoods: 11 * 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 constituency this ward mostly lies in. Its edges do not follow it. ## Next door [Windy Hall](https://openindex.co.uk/causeway-coast-and-glens/ward/windy-hall), [Quarry](https://openindex.co.uk/causeway-coast-and-glens/ward/quarry), [Waterside](https://openindex.co.uk/causeway-coast-and-glens/ward/waterside), [Churchland](https://openindex.co.uk/causeway-coast-and-glens/ward/churchland), [University](https://openindex.co.uk/causeway-coast-and-glens/ward/university), [Dundooan](https://openindex.co.uk/causeway-coast-and-glens/ward/dundooan) ## Latest updates for Mountsandel - 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/N08000430 ## How to cite Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/causeway-coast-and-glens/ward/mountsandel, or to one figure with its anchor, https://openindex.co.uk/causeway-coast-and-glens/ward/mountsandel#f-population. 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 2026.10.10. The HTML page: https://openindex.co.uk/causeway-coast-and-glens/ward/mountsandel