# Llannarth South west Ceredigion. About 1,577 people (mid-2024 estimate) in 46 square kilometres. Llannarth had 1,573 usual residents at the census (ONS Census 2021). Ward. Code W05001309. In: [Wales](https://openindex.co.uk/wales) › [Ceredigion](https://openindex.co.uk/ceredigion) ## Key figures - **Population: 1,573** (2021). Llannarth had 1,573 usual residents at the census (ONS Census 2021). 79th 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/ceredigion/ward/llannarth#f-population - **People in radon Affected Area squares: 69%** (2022). About 69% of people in Llannarth 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/ceredigion/ward/llannarth#f-radon-affected-share - **Gigabit broadband coverage: 55.8%** (January 2026). In Llannarth, 55.8% 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/ceredigion/ward/llannarth#f-gigabit-coverage - **Aged 15 to 64: 54.2%** (2021). 54.2% of residents in Llannarth were aged 15 to 64 at the census (ONS Census 2021). Joint 343rd 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/ceredigion/ward/llannarth#f-age-15-to-64 ## On the map - [Radon Affected Area by ward](https://openindex.co.uk/map/radon-affected-areas#place=W05001309) (Worked out by Open Index · 2022): About 69% of people in Llannarth 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=W05001309) (UK House Price Index · August 2026): Published for whole councils, so the map colours all of Ceredigion. The outline is Llannarth. - [Population by ward](https://openindex.co.uk/map/population#place=W05001309) (Census 2021, England and Wales): Llannarth had 1,573 usual residents at the census. - [Most deprived 20% by council](https://openindex.co.uk/map/most-deprived-20-wales#place=W05001309) (Worked out by Open Index · 2025): Published for whole councils, so the map colours all of Ceredigion. The outline is Llannarth. ## How Llannarth compares Each ward against every other ward the measure covers. | Measure | Llannarth | Rank | Compared with | | --- | --- | --- | --- | | Population | 1,573 | 7th least populated | 34 wards, Ceredigion · 2021 | | People in radon Affected Area squares | 69% | fewest people in radon Affected Areas | 34 wards, Ceredigion · 2022 | | Gigabit broadband coverage | 55.8% | 17th lowest | 34 wards, Ceredigion · Jan 2026 | | Aged 15 to 64 | 54.2% | 6th lowest | 34 wards, Ceredigion · 2021 | ## What is the population of Llannarth? Llannarth had 1,573 usual residents at the census. Llannarth is the 79th least populated of 8,397 in the UK. ## Figures for the whole of Ceredigion These figures are published for the whole of Ceredigion, not for each ward, so they describe all of Ceredigion and not Llannarth alone. [See Ceredigion](https://openindex.co.uk/ceredigion) - **Average house price: £234,314** (August 2026). Ceredigion’s average house price was £234,314 in August 2026 (HM Land Registry). Down 1.7% in a year. Source: UK House Price Index, August 2026. Published 21 October 2026. - **Median full-time pay: £33,299** (2025). Full-time workers living in Ceredigion earned a median of £33,299 in 2025 (ONS earnings survey). 22nd lowest paid of 348. Source: Annual Survey of Hours and Earnings, 2025. Published 23 October 2025. - **House price to pay: 7.0×** (2025). A home in Ceredigion costs 7.0 times local full-time pay. Joint 159th most affordable of 348. Source: Worked out by Open Index from the UK House Price Index and the ONS earnings survey. Published 21 October 2026. - **Population estimate: 72,696** (2025). Ceredigion’s population was an estimated 72,696 in mid-2025 (ONS population estimates). No change in a year. Source: Mid-year population estimates, 2025. Published 1 October 2026. ## Llannarth in brief Llannarth had 1,573 usual residents at the census. About 69% of people in Llannarth live in a 1 km square that the radon atlas marks as a radon Affected Area. In Llannarth, 55.8% of homes and businesses could get gigabit-capable broadband in January 2026. 54.2% of residents in Llannarth were aged 15 to 64 at the census. ## About - Type: Ward - Code: W05001309 - Constituency: [Ceredigion Preseli †](https://openindex.co.uk/constituency/ceredigion-preseli) - Council: [Ceredigion](https://openindex.co.uk/ceredigion) - Nation: [Wales](https://openindex.co.uk/wales) - Area: 45.95 km² - People, mid-2024: 1,577* - Output areas: 5 * 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 [Llandysilio and Llangrannog](https://openindex.co.uk/ceredigion/ward/llandysilio-and-llangrannog), [New Quay and Llanllwchaearn](https://openindex.co.uk/ceredigion/ward/new-quay-and-llanllwchaearn), [Llanfihangel Ystrad](https://openindex.co.uk/ceredigion/ward/llanfihangel-ystrad), [Ciliau Aeron](https://openindex.co.uk/ceredigion/ward/ciliau-aeron), [Llanwenog](https://openindex.co.uk/ceredigion/ward/llanwenog) ## Latest updates for Llannarth - August 2026 house prices published: HM Land Registry and partners · Oct 2026. - September 2026 rent published: ONS private rents · Oct 2026. - Dental practices updated: NHS England · Oct 2026. - Schools updated: Ofsted · Oct 2026. The same figures as JSON: https://openindex.co.uk/v1/places/W05001309 ## How to cite Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/ceredigion/ward/llannarth, or to one figure with its anchor, https://openindex.co.uk/ceredigion/ward/llannarth#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/ceredigion/ward/llannarth