# Sheriff's Mountain North Derry City and Strabane. About 3,161 people (mid-2024 estimate) in 22 square kilometres. Sheriff's Mountain had 2,615 usual residents at the census (NISRA Census 2021). Ward. Code N08000533. In: [Northern Ireland](https://openindex.co.uk/northern-ireland) › [Derry City and Strabane](https://openindex.co.uk/derry-city-and-strabane) ## Key figures - **Population: 2,615** (2021). Sheriff's Mountain had 2,615 usual residents at the census (NISRA Census 2021). 748th 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/derry-city-and-strabane/ward/sheriffs-mountain#f-population - **People in radon Affected Area squares: 100%** (2022). About 100% of people in Sheriff's Mountain 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/derry-city-and-strabane/ward/sheriffs-mountain#f-radon-affected-share - **Gigabit broadband coverage: 96.0%** (January 2026). In Sheriff's Mountain, 96.0% 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/derry-city-and-strabane/ward/sheriffs-mountain#f-gigabit-coverage - **Aged 15 to 64: 67.0%** (2021). 67.0% of residents in Sheriff's Mountain were aged 15 to 64 at the census (NISRA Census 2021). Joint 1,337th highest 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/derry-city-and-strabane/ward/sheriffs-mountain#f-age-15-to-64 ## On the map - [Radon Affected Area by ward](https://openindex.co.uk/map/radon-affected-areas?place=N08000533) (Worked out by Open Index · 2022): About 100% of people in Sheriff's Mountain 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=N08000533) (UK House Price Index · August 2026): Published for whole councils, so the map colours all of Derry City and Strabane. The outline is Sheriff's Mountain. - [Crime and ASB by ward](https://openindex.co.uk/map/recorded-crime?place=N08000533) (Police recorded crime and outcomes (data.police.uk) · August 2026): Police recorded 7 crimes and anti-social behaviour incidents in Sheriff's Mountain in August 2026. - [Population by ward](https://openindex.co.uk/map/population?place=N08000533) (Census 2021, England and Wales): Sheriff's Mountain had 2,615 usual residents at the census. ## How Sheriff's Mountain compares Each ward against every other ward the measure covers. | Measure | Sheriff's Mountain | Rank | Compared with | | --- | --- | --- | --- | | Population | 2,615 | 3rd least populated | 40 wards, Derry City and Strabane · 2021 | | People in radon Affected Area squares | 100% | joint most people in radon Affected Areas | 40 wards, Derry City and Strabane · 2022 | | Gigabit broadband coverage | 96.0% | 18th lowest | 40 wards, Derry City and Strabane · Jan 2026 | | Aged 15 to 64 | 67.0% | joint 6th highest | 40 wards, Derry City and Strabane · 2021 | ## Is Sheriff's Mountain safe? What police records show In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Sheriff's Mountain at a rate of 27.5 per 1,000 people. That compares with 78.4 per 1,000 people across Derry City and Strabane. Across Northern Ireland as a whole, the recorded crime rate was 70.2 per 1,000 people. In August 2026 alone, 7 cases of crime and anti-social behaviour were recorded in Sheriff's Mountain. In the 12 months to August 2026, the most common types were violence and sexual offences (29), anti-social behaviour (15) and criminal damage and arson (9). 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 Derry City and Strabane These figures are published for the whole of Derry City and Strabane, not for each ward, so they describe all of Derry City and Strabane and not Sheriff's Mountain alone. [See Derry City and Strabane](https://openindex.co.uk/derry-city-and-strabane) - **Average house price: £189,474** (August 2026). Derry City and Strabane’s average house price was £189,474 in August 2026 (HM Land Registry). Up 12.4% in a year. Source: UK House Price Index, August 2026. Published 21 October 2026. - **Population estimate: 152,659** (2025). Derry City and Strabane’s population was an estimated 152,659 in mid-2025 (ONS population estimates). Up 0.2% in a year. Source: Mid-year population estimates, 2025. Published 1 October 2026. - **Female life expectancy: 81.2 years** (2022 to 2024). A baby girl born in Derry City and Strabane could expect to live 81.2 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: 94.5%** (January 2026). In Derry City and Strabane, 94.5% 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. ## Sheriff's Mountain in brief Sheriff's Mountain had 2,615 usual residents at the census. About 100% of people in Sheriff's Mountain live in a 1 km square that the radon atlas marks as a radon Affected Area. In Sheriff's Mountain, 96.0% of homes and businesses could get gigabit-capable broadband in January 2026. 67.0% of residents in Sheriff's Mountain were aged 15 to 64 at the census. ## About - Type: Ward - Code: N08000533 - Constituency: [Foyle †](https://openindex.co.uk/constituency/foyle) - Council: [Derry City and Strabane](https://openindex.co.uk/derry-city-and-strabane) - Nation: [Northern Ireland](https://openindex.co.uk/northern-ireland) - Area: 21.70 km² - People, mid-2024: 3,161* - Neighbourhoods: 4 * 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 [New Buildings](https://openindex.co.uk/derry-city-and-strabane/ward/new-buildings), [Ballymagroarty](https://openindex.co.uk/derry-city-and-strabane/ward/ballymagroarty), [Slievekirk](https://openindex.co.uk/derry-city-and-strabane/ward/slievekirk), [Creggan South](https://openindex.co.uk/derry-city-and-strabane/ward/creggan-south), [Creggan](https://openindex.co.uk/derry-city-and-strabane/ward/creggan), [Foyle Springs](https://openindex.co.uk/derry-city-and-strabane/ward/foyle-springs) ## Latest updates for Sheriff's Mountain - 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/N08000533 ## How to cite Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/derry-city-and-strabane/ward/sheriffs-mountain, or to one figure with its anchor, https://openindex.co.uk/derry-city-and-strabane/ward/sheriffs-mountain#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 2026.10.9. The HTML page: https://openindex.co.uk/derry-city-and-strabane/ward/sheriffs-mountain