# Trefforest

South east Rhondda Cynon Taf. 11,742 people (mid-2024 estimate) in 7.4 square kilometres.

Trefforest had 10,431 usual residents at the census (ONS Census 2021).

Middle area. Code W02000273. In: [Wales](https://openindex.co.uk/wales) › [Rhondda Cynon Taf](https://openindex.co.uk/rhondda-cynon-taf)

## Key figures

- **Median sale price: £155,000** (2025). The median price paid for a home in Trefforest was £155,000 in 2025. Joint 566th 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/rhondda-cynon-taf/trefforest#f-house-sales-median-price
- **Population: 10,431** (2021). Trefforest had 10,431 usual residents at the census (ONS Census 2021). 862nd 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/rhondda-cynon-taf/trefforest#f-population
- **People in radon Affected Area squares: 100%** (2022). About 100% of people in Trefforest 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/rhondda-cynon-taf/trefforest#f-radon-affected-share
- **Gigabit broadband coverage: 90.2%** (January 2026). In Trefforest, 90.2% 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/rhondda-cynon-taf/trefforest#f-gigabit-coverage

## On the map

- [Radon Affected Area by middle area](https://openindex.co.uk/map/radon-affected-areas?place=W02000273) (Worked out by Open Index · 2022): About 100% of people in Trefforest 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=W02000273) (Worked out by Open Index · 2025): 120 homes were sold in Trefforest in 2025.
- [Crime and ASB by middle area](https://openindex.co.uk/map/recorded-crime?place=W02000273) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for Trefforest.
- [Population by middle area](https://openindex.co.uk/map/population?place=W02000273) (Census 2021, England and Wales): Trefforest had 10,431 usual residents at the census.

## Recorded crime in Trefforest

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Trefforest at a rate of 98.6 per 1,000 people.
That compares with 86.2 per 1,000 people across Rhondda Cynon Taf.
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 | 516 |
| Other crime | 240 |
| Anti-social behaviour | 101 |
| Shoplifting | 83 |
| Criminal damage and arson | 69 |
| Vehicle crime | 53 |
| Burglary | 51 |
| Drug offences | 29 |
| Robbery | 13 |
| Theft from the person | 3 |

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

## How Trefforest compares

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

| Measure | Trefforest | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £155,000 | 14th most expensive | 31 middle areas, Rhondda Cynon Taf · 2025 |
| Population | 10,431 | 2nd most populated | 31 middle areas, Rhondda Cynon Taf · 2021 |
| People in radon Affected Area squares | 100% | joint most people in radon Affected Areas | 31 middle areas, Rhondda Cynon Taf · 2022 |
| Gigabit broadband coverage | 90.2% | 14th lowest | 31 middle areas, Rhondda Cynon Taf · Jan 2026 |

## Is Trefforest safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Trefforest at a rate of 98.6 per 1,000 people.
That compares with 86.2 per 1,000 people across Rhondda Cynon Taf.
Across Wales as a whole, the recorded crime rate was 96.7 per 1,000 people.
In August 2026 alone, 88 cases of crime and anti-social behaviour were recorded in Trefforest.
In the 12 months to August 2026, the most common types were violence and sexual offences (516), other crime (240) and anti-social behaviour (101).
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 Rhondda Cynon Taf

These figures are published for the whole of Rhondda Cynon Taf, not for each middle area, so they describe all of Rhondda Cynon Taf and not Trefforest alone. [See Rhondda Cynon Taf](https://openindex.co.uk/rhondda-cynon-taf)

- **Average house price: £164,192** (July 2026). Rhondda Cynon Taf’s average house price was £164,192 in July 2026 (HM Land Registry). Up 4.7% in a year. Source: UK House Price Index, July 2026. Published 16 September 2026.
- **Median full-time pay: £34,837** (2025). Full-time workers living in Rhondda Cynon Taf earned a median of £34,837 in 2025 (ONS earnings survey). 56th lowest paid of 348. Source: Annual Survey of Hours and Earnings, 2025. Published 23 October 2025.
- **House price to pay: 4.7×** (2025). A home in Rhondda Cynon Taf costs 4.7 times local full-time pay. Joint 34th most affordable of 348. Source: Worked out by Open Index from the UK House Price Index and the ONS earnings survey. Published 16 September 2026.
- **Population estimate: 241,015** (2025). Rhondda Cynon Taf’s population was an estimated 241,015 in mid-2025 (ONS population estimates). Down 0.3% in a year. Source: Mid-year population estimates, 2025. Published 1 October 2026.

## Trefforest in brief

The median price paid for a home in Trefforest was £155,000 in 2025.
Trefforest had 10,431 usual residents at the census.
About 100% of people in Trefforest live in a 1 km square that the radon atlas marks as a radon Affected Area.
In Trefforest, 90.2% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Middle area
- Code: W02000273
- Ward: [Rhydfelen Central †](https://openindex.co.uk/rhondda-cynon-taf/ward/rhydfelen-central)
- Constituency: [Pontypridd †](https://openindex.co.uk/constituency/pontypridd)
- Council: [Rhondda Cynon Taf](https://openindex.co.uk/rhondda-cynon-taf)
- Nation: [Wales](https://openindex.co.uk/wales)
- Area: 7.37 km²
- People, mid-2024: 11,742*
- Neighbourhoods: 6
- Output areas: 29

* 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

[Taff's Well & Nantgarw](https://openindex.co.uk/rhondda-cynon-taf/taffs-well-and-nantgarw), [Pontypridd East & Cilfynydd](https://openindex.co.uk/rhondda-cynon-taf/pontypridd-east-and-cilfynydd), [Aber Valley](https://openindex.co.uk/caerphilly/aber-valley), [Pontypridd West](https://openindex.co.uk/rhondda-cynon-taf/pontypridd-west), [Church Village East & Ton-teg](https://openindex.co.uk/rhondda-cynon-taf/church-village-east-and-ton-teg)

## Latest updates for Trefforest

- Dental practices updated: NHS England · Oct 2026.
- Schools updated: Ofsted · Oct 2026.
- GP practices updated: NHS England · Oct 2026.
- Schools updated: Department for Education · Oct 2026.

The same figures as JSON: https://openindex.co.uk/v1/places/W02000273

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/rhondda-cynon-taf/trefforest, or to one figure with its anchor, https://openindex.co.uk/rhondda-cynon-taf/trefforest#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 2026.10.8, https://doi.org/10.5281/zenodo.23508850. The HTML page: https://openindex.co.uk/rhondda-cynon-taf/trefforest