# Llantwit Major

South west Vale of Glamorgan. 8,741 people (mid-2024 estimate) in 25 square kilometres.

Llantwit Major had 8,679 usual residents at the census (ONS Census 2021).

Middle area. Code W02000247. In: [Wales](https://openindex.co.uk/wales) › [Vale of Glamorgan](https://openindex.co.uk/vale-of-glamorgan)

## Key figures

- **Median sale price: £280,500** (2025). The median price paid for a home in Llantwit Major was £280,500 in 2025. Joint 3,399th cheapest of 7,259. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026. https://openindex.co.uk/vale-of-glamorgan/llantwit-major#f-house-sales-median-price
- **Population: 8,679** (2021). Llantwit Major had 8,679 usual residents at the census (ONS Census 2021). Joint 2,495th most populated of 9,448. 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/vale-of-glamorgan/llantwit-major#f-population
- **People in radon Affected Area squares: 100%** (2022). About 100% of people in Llantwit Major 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/vale-of-glamorgan/llantwit-major#f-radon-affected-share
- **Gigabit broadband coverage: 95.6%** (January 2026). In Llantwit Major, 95.6% 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/vale-of-glamorgan/llantwit-major#f-gigabit-coverage

## On the map

- [Radon Affected Area by middle area](https://openindex.co.uk/map/radon-affected-areas#place=W02000247) (Worked out by Open Index · 2022): About 100% of people in Llantwit Major live in a 1 km square that the radon atlas marks as a radon Affected Area.
- [Sales per year by middle area](https://openindex.co.uk/map/house-sales-per-year#place=W02000247) (Worked out by Open Index · 2025): 118 homes were sold in Llantwit Major in 2025.
- [Crime and ASB by middle area](https://openindex.co.uk/map/recorded-crime#place=W02000247) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for Llantwit Major.
- [Population by middle area](https://openindex.co.uk/map/population#place=W02000247) (Census 2021, England and Wales): Llantwit Major had 8,679 usual residents at the census.

## Recorded crime in Llantwit Major

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Llantwit Major at a rate of 57.5 per 1,000 people.
That compares with 73.3 per 1,000 people across Vale of Glamorgan.
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.

| Kind of crime, 12 months to August 2026 | Count |
| --- | --- |
| Violence and sexual offences | 199 |
| Other crime | 107 |
| Anti-social behaviour | 68 |
| Shoplifting | 53 |
| Criminal damage and arson | 35 |
| Burglary | 21 |
| Vehicle crime | 14 |
| Drug offences | 3 |
| Robbery | 3 |
| Theft from the person | 0 |

Source: police.uk, 12 months to August 2026.

## How Llantwit Major compares

Each middle area against every other middle area the measure covers.

| Measure | Llantwit Major | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £280,500 | 7th cheapest | 15 middle areas, Vale of Glamorgan · 2025 |
| Population | 8,679 | 7th least populated | 15 middle areas, Vale of Glamorgan · 2021 |
| People in radon Affected Area squares | 100% | joint most people in radon Affected Areas | 15 middle areas, Vale of Glamorgan · 2022 |
| Gigabit broadband coverage | 95.6% | 8th highest | 15 middle areas, Vale of Glamorgan · Jan 2026 |

## Is Llantwit Major safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Llantwit Major at a rate of 57.5 per 1,000 people.
That compares with 73.3 per 1,000 people across Vale of Glamorgan.
Across Wales as a whole, the recorded crime rate was 96.7 per 1,000 people.
In August 2026 alone, 50 cases of crime and anti-social behaviour were recorded in Llantwit Major.
In the 12 months to August 2026, the most common types were violence and sexual offences (199), other crime (107) and anti-social behaviour (68).
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 Vale of Glamorgan

These figures are published for the whole of Vale of Glamorgan, not for each middle area, so they describe all of Vale of Glamorgan and not Llantwit Major alone. [See Vale of Glamorgan](https://openindex.co.uk/vale-of-glamorgan)

- **Average house price: £300,358** (August 2026). Vale of Glamorgan’s average house price was £300,358 in August 2026 (HM Land Registry). Up 3.2% in a year. Source: UK House Price Index, August 2026. Published 21 October 2026.
- **Median full-time pay: £38,656** (2025). Full-time workers living in Vale of Glamorgan earned a median of £38,656 in 2025 (ONS earnings survey). 169th highest paid of 348. Source: Annual Survey of Hours and Earnings, 2025. Published 23 October 2025.
- **House price to pay: 7.8×** (2025). A home in Vale of Glamorgan costs 7.8 times local full-time pay. Joint 140th least 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: 135,362** (2025). Vale of Glamorgan’s population was an estimated 135,362 in mid-2025 (ONS population estimates). No change in a year. Source: Mid-year population estimates, 2025. Published 1 October 2026.

## Llantwit Major in brief

The median price paid for a home in Llantwit Major was £280,500 in 2025.
Llantwit Major had 8,679 usual residents at the census.
About 100% of people in Llantwit Major live in a 1 km square that the radon atlas marks as a radon Affected Area.
In Llantwit Major, 95.6% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Middle area
- Code: W02000247
- Ward: [Llantwit Major †](https://openindex.co.uk/vale-of-glamorgan/ward/llantwit-major)
- Constituency: [Vale of Glamorgan †](https://openindex.co.uk/constituency/vale-of-glamorgan)
- Council: [Vale of Glamorgan](https://openindex.co.uk/vale-of-glamorgan)
- Nation: [Wales](https://openindex.co.uk/wales)
- Area: 24.65 km²
- People, mid-2024: 8,741*
- Neighbourhoods: 6
- Output areas: 32

* People: worked out by Open Index by adding up the neighbourhood estimates inside this area.
† Best fit: the ward and constituency this middle area mostly lies in. Its edges do not follow theirs.

## Next door

[Ogmore-by-Sea & Llandow](https://openindex.co.uk/vale-of-glamorgan/ogmore-by-sea-and-llandow), [Rhoose & Airport](https://openindex.co.uk/vale-of-glamorgan/rhoose-and-airport)

## Latest updates for Llantwit Major

- 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/W02000247

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/vale-of-glamorgan/llantwit-major, or to one figure with its anchor, https://openindex.co.uk/vale-of-glamorgan/llantwit-major#f-house-sales-median-price.

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/vale-of-glamorgan/llantwit-major