# Slieve Croob J5 East Newry, Mourne and Down. 399 people (mid-2024 estimate) in 0.1 square kilometres. Slieve Croob J5 had 357 usual residents at the census (NISRA Census 2021). Neighbourhood. Code N20003346. In: [Northern Ireland](https://openindex.co.uk/northern-ireland) › [Newry, Mourne and Down](https://openindex.co.uk/newry-mourne-and-down) ## Key figures - **Population: 357** (2021). Slieve Croob J5 had 357 usual residents at the census (NISRA Census 2021). Joint 595th least populated of 46,844. 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/newry-mourne-and-down/neighbourhood/n20003346#f-population - **Gigabit broadband coverage: 99.3%** (January 2026). In Slieve Croob J5, 99.3% 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/newry-mourne-and-down/neighbourhood/n20003346#f-gigabit-coverage - **Aged 15 to 64: 68.3%** (2021). 68.3% of residents in Slieve Croob J5 were aged 15 to 64 at the census (NISRA Census 2021). Joint 9,340th highest of 46,844. 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/newry-mourne-and-down/neighbourhood/n20003346#f-age-15-to-64 - **Aged 65 and over: 8.4%** (2021). 8.4% of residents in Slieve Croob J5 were aged 65 or over at the census (NISRA Census 2021). Joint 4,561st lowest of 46,844. 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/newry-mourne-and-down/neighbourhood/n20003346#f-age-65-and-over ## On the map - [Gigabit coverage by neighbourhood](https://openindex.co.uk/map/gigabit-broadband#place=N20003346) (Connected Nations (Ofcom) · January 2026): In Slieve Croob J5, 99.3% of homes and businesses could get gigabit-capable broadband in January 2026. - [Average house price by council](https://openindex.co.uk/map/house-prices#place=N20003346) (UK House Price Index · August 2026): Published for whole councils, so the map colours all of Newry, Mourne and Down. The outline is Slieve Croob J5. - [Crime and ASB by neighbourhood](https://openindex.co.uk/map/recorded-crime#place=N20003346) (Police recorded crime and outcomes (data.police.uk) · August 2026): Police recorded 0 crimes and anti-social behaviour incidents in Slieve Croob J5 in August 2026. - [Population by neighbourhood](https://openindex.co.uk/map/population#place=N20003346) (Census 2021, England and Wales): Slieve Croob J5 had 357 usual residents at the census. Northern Ireland Multiple Deprivation Measure 2017 is published for the Super Output Areas (2001), whose boundaries differ from this neighbourhood’s, so it has no figure for Slieve Croob J5. [See deprivation across Newry, Mourne and Down](https://openindex.co.uk/newry-mourne-and-down/deprivation) ## How Slieve Croob J5 compares Each neighbourhood against every other neighbourhood the measure covers. | Measure | Slieve Croob J5 | Rank | Compared with | | --- | --- | --- | --- | | Population | 357 | joint 30th least populated | 331 neighbourhoods, Newry, Mourne and Down · 2021 | | Gigabit broadband coverage | 99.3% | joint 99th highest | 331 neighbourhoods, Newry, Mourne and Down · Jan 2026 | | Aged 15 to 64 | 68.3% | 23rd highest | 331 neighbourhoods, Newry, Mourne and Down · 2021 | | Aged 65 and over | 8.4% | 18th lowest | 331 neighbourhoods, Newry, Mourne and Down · 2021 | ## What is the population of Slieve Croob J5? Slieve Croob J5 had 357 usual residents at the census. Slieve Croob J5 is the joint 595th least populated of 46,844 in the UK. ## Figures for the whole of Newry, Mourne and Down These figures are published for the whole of Newry, Mourne and Down, not for each neighbourhood, so they describe all of Newry, Mourne and Down and not Slieve Croob J5 alone. [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. - **People in radon Affected Area squares: 83%** (2022). About 83% of people in Newry, Mourne and 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. ## Slieve Croob J5 in brief Slieve Croob J5 had 357 usual residents at the census. In Slieve Croob J5, 99.3% of homes and businesses could get gigabit-capable broadband in January 2026. 68.3% of residents in Slieve Croob J5 were aged 15 to 64 at the census. 8.4% of residents in Slieve Croob J5 were aged 65 or over at the census. ## About - Type: Neighbourhood - Code: N20003346 - Middle area: [Slieve Croob J](https://openindex.co.uk/newry-mourne-and-down/slieve-croob-j) - Ward: [Castlewellan †](https://openindex.co.uk/newry-mourne-and-down/ward/castlewellan) - Constituency: [South Down †](https://openindex.co.uk/constituency/south-down) - Council: [Newry, Mourne and Down](https://openindex.co.uk/newry-mourne-and-down) - Nation: [Northern Ireland](https://openindex.co.uk/northern-ireland) - Area: 0.12 km² - People, mid-2024: 399 † Best fit: the ward and constituency this neighbourhood mostly lies in. Its edges do not follow theirs. ## Next door [Slieve Croob J4](https://openindex.co.uk/newry-mourne-and-down/neighbourhood/n20003345), [Slieve Croob E4](https://openindex.co.uk/newry-mourne-and-down/neighbourhood/n20003336), [The Mournes A2](https://openindex.co.uk/newry-mourne-and-down/neighbourhood/n20003258), [Slieve Croob J3](https://openindex.co.uk/newry-mourne-and-down/neighbourhood/n20003344) ## Latest updates for Slieve Croob J5 - 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/N20003346 ## How to cite Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/newry-mourne-and-down/neighbourhood/n20003346, or to one figure with its anchor, https://openindex.co.uk/newry-mourne-and-down/neighbourhood/n20003346#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 2026.10.11. The HTML page: https://openindex.co.uk/newry-mourne-and-down/neighbourhood/n20003346