# Merthyr Tydfil Town in Merthyr Tydfil, Wales. Merthyr Tydfil is a town in Merthyr Tydfil, Wales. Median sale price £151,500 in 2025. Recorded crime 125.2 per 1,000 people. About 39,706 people. Town. Code W45000388. In: [Towns](https://openindex.co.uk/places/towns) › [Merthyr Tydfil](https://openindex.co.uk/merthyr-tydfil) Merthyr Tydfil is an ONS built-up area: the land built up as one town, whatever council it is in. Figures for Merthyr Tydfil add up the census output areas (or, for claimants, the neighbourhoods) that sit mostly inside it, so they are close to, but not exactly, the town’s own. ## Key figures - **Median sale price: £151,500** (2025). The median price paid for a home in Merthyr Tydfil was £151,500 in 2025. 58th cheapest of 1,092. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026. https://openindex.co.uk/town/merthyr-tydfil#f-house-sales-median-price - **Population: 39,542** (2021). Merthyr Tydfil had 39,542 usual residents at the census (ONS Census 2021). 281st most populated of 1,209. 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/town/merthyr-tydfil#f-population - **People in radon Affected Area squares: 53%** (2022). About 53% of people in Merthyr Tydfil 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/town/merthyr-tydfil#f-radon-affected-share - **Gigabit broadband coverage: 88.8%** (January 2026). In Merthyr Tydfil, 88.8% 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/town/merthyr-tydfil#f-gigabit-coverage ## On the map - [Radon Affected Area by town](https://openindex.co.uk/map/radon-affected-areas?place=W45000388) (Worked out by Open Index · 2022): About 53% of people in Merthyr Tydfil live in a 1 km square that the radon atlas marks as a radon Affected Area. - [Sales per year by town](https://openindex.co.uk/map/house-sales-per-year?place=W45000388) (Worked out by Open Index · 2025): 424 homes were sold in Merthyr Tydfil in 2025. - [Crime and ASB by town](https://openindex.co.uk/map/recorded-crime?place=W45000388) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for Merthyr Tydfil. - [Population by town](https://openindex.co.uk/map/population?place=W45000388) (Census 2021, England and Wales): Merthyr Tydfil had 39,542 usual residents at the census. ## How Merthyr Tydfil compares Each town against every other town the measure covers. | Measure | Merthyr Tydfil | Rank | Compared with | | --- | --- | --- | --- | | Median sale price | £151,500 | 12th cheapest | 76 towns, Wales · 2025 | | Population | 39,542 | 10th most populated | 76 towns, Wales · 2021 | | People in radon Affected Area squares | 53% | 10th fewest people in radon Affected Areas | 76 towns, Wales · 2022 | | Gigabit broadband coverage | 88.8% | 17th lowest | 76 towns, Wales · Jan 2026 | ## Is Merthyr Tydfil safe? What police records show In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Merthyr Tydfil at a rate of 125.2 per 1,000 people. That compares with 96.7 per 1,000 people across Wales. In August 2026 alone, 497 cases of crime and anti-social behaviour were recorded in Merthyr Tydfil. In the 12 months to August 2026, the most common types were violence and sexual offences (1,825), other crime (952) and anti-social behaviour (643). A year earlier, the recorded crime rate in Merthyr Tydfil was 124.0 per 1,000 people. 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. ## Deprivation in Merthyr Tydfil, neighbourhood by neighbourhood - Deprivation is ranked by neighbourhood, so Merthyr Tydfil has no single figure. Of its 25 neighbourhoods with a rank: - Decile 1 (Wales’s most deprived 10%): 6 neighbourhoods - Decile 2: 4 neighbourhoods - Decile 3: 1 neighbourhood - Decile 4: 4 neighbourhoods - Decile 5: 1 neighbourhood - Decile 6: 4 neighbourhoods - Decile 7: 2 neighbourhoods - Decile 8: 1 neighbourhood - Decile 9: 1 neighbourhood - Decile 10 (Wales’s least deprived 10%): 1 neighbourhood Source: Welsh Index of Multiple Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in Wales. ## Neighbourhoods in Merthyr Tydfil | Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband | | --- | --- | --- | --- | --- | | [Merthyr Tydfil 002A](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001295) | 1,510 | 95.4 per 1,000 | 2 | 87.2% | | [Merthyr Tydfil 002B](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001296) | 1,575 | 37.8 per 1,000 | 6 | 88.5% | | [Merthyr Tydfil 002C](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001297) | 1,816 | 122.6 per 1,000 | 4 | 98.8% | | [Merthyr Tydfil 002D](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001298) | 1,728 | 132.3 per 1,000 | 2 | 88.6% | | [Merthyr Tydfil 002E](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001310) | 1,553 | 70.2 per 1,000 | 7 | 99.4% | | [Merthyr Tydfil 002F](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001311) | 1,172 | 72.4 per 1,000 | 4 | 100.0% | | [Merthyr Tydfil 003A](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001291) | 2,080 | 51.9 per 1,000 | 6 | 84.5% | | [Merthyr Tydfil 003B](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001294) | 1,669 | 21.8 per 1,000 | 10 | 95.6% | | [Merthyr Tydfil 003C](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001305) | 1,225 | 66.8 per 1,000 | 5 | 97.6% | | [Merthyr Tydfil 003D](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001306) | 1,423 | 106.7 per 1,000 | 7 | 92.0% | | [Merthyr Tydfil 003E](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001324) | 1,934 | 84.4 per 1,000 | 6 | 81.1% | | [Merthyr Tydfil 004A](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001292) | 1,842 | 113.6 per 1,000 | 1 | 95.3% | | [Merthyr Tydfil 004B](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001293) | 1,681 | 349.2 per 1,000 | 4 | 96.6% | | [Merthyr Tydfil 004C](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001307) | 1,514 | 294.3 per 1,000 | 1 | 76.4% | | [Merthyr Tydfil 004D](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001315) | 1,701 | 497.8 per 1,000 | 2 | 43.7% | | [Merthyr Tydfil 005C](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001317) | 1,745 | 42.7 per 1,000 | 4 | 97.5% | | [Merthyr Tydfil 005D](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001318) | 1,481 | 64.7 per 1,000 | 6 | 98.0% | | [Merthyr Tydfil 005E](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001959) | 1,534 | 60.2 per 1,000 | 9 | 92.6% | | [Merthyr Tydfil 005F](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001960) | 1,436 | 32.3 per 1,000 | 8 | 86.3% | | [Merthyr Tydfil 008A](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001299) | 1,692 | 246.9 per 1,000 | 1 | 92.2% | | [Merthyr Tydfil 008B](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001300) | 1,737 | 102.4 per 1,000 | 1 | 91.1% | | [Merthyr Tydfil 008C](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001301) | 1,913 | 114.9 per 1,000 | 1 | 98.9% | | [Merthyr Tydfil 008D](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001308) | 1,253 | 140.1 per 1,000 | 1 | 100.0% | | [Merthyr Tydfil 008E](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001309) | 1,301 | 55.9 per 1,000 | 2 | 86.7% | | [Merthyr Tydfil 008F](https://openindex.co.uk/merthyr-tydfil/neighbourhood/w01001898) | 1,462 | 71.5 per 1,000 | 3 | 84.8% | ## Your MP - [Merthyr Tydfil and Aberdare](https://openindex.co.uk/constituency/merthyr-tydfil-and-aberdare): Gerald Jones (Labour), MP since July 2024. As of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API. ## Council [Merthyr Tydfil](https://openindex.co.uk/merthyr-tydfil) ## Postcode districts covering Merthyr Tydfil [CF47](https://openindex.co.uk/postcode/cf47), [CF48](https://openindex.co.uk/postcode/cf48) ## Middle areas in Merthyr Tydfil [Cefncoedycymer, Heolgerrig & Park](https://openindex.co.uk/merthyr-tydfil/cefncoedycymer-heolgerrig-and-park), [Dowlais](https://openindex.co.uk/merthyr-tydfil/dowlais), [Gelli-deg & Town](https://openindex.co.uk/merthyr-tydfil/gelli-deg-and-town), [Gurnos, Trefechan & Pontsticill](https://openindex.co.uk/merthyr-tydfil/gurnos-trefechan-and-pontsticill), [Pentre-bach & Mountain Hare](https://openindex.co.uk/merthyr-tydfil/pentre-bach-and-mountain-hare) ## Towns near Merthyr Tydfil [Aberdare](https://openindex.co.uk/town/aberdare), [Tredegar](https://openindex.co.uk/town/tredegar), [Mountain Ash](https://openindex.co.uk/town/mountain-ash), [Ebbw Vale](https://openindex.co.uk/town/ebbw-vale), [Bargod](https://openindex.co.uk/town/bargod), [Treorchy](https://openindex.co.uk/town/treorchy) ## Merthyr Tydfil in brief Merthyr Tydfil is a town in Merthyr Tydfil, Wales. About 39,706 people lived in Merthyr Tydfil in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £151,500 in 2025 across 424 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 125.2 per 1,000 people in the 12 months to August 2026 (police.uk). The median price paid for a home in Merthyr Tydfil was £151,500 in 2025. Merthyr Tydfil had 39,542 usual residents at the census. About 53% of people in Merthyr Tydfil live in a 1 km square that the radon atlas marks as a radon Affected Area. In Merthyr Tydfil, 88.8% of homes and businesses could get gigabit-capable broadband in January 2026. ## About - Type: Town - Code: W45000388 - Constituency: [Merthyr Tydfil and Aberdare †](https://openindex.co.uk/constituency/merthyr-tydfil-and-aberdare) - Council: [Merthyr Tydfil †](https://openindex.co.uk/merthyr-tydfil) - Nation: [Wales](https://openindex.co.uk/wales) - Area: 11.11 km² - People, mid-2024: 39,706* - Neighbourhoods: 25 - Output areas: 130 * 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 and council this town mostly lies in. Its edges do not follow theirs. ## Next door [Aberdare](https://openindex.co.uk/town/aberdare), [Tredegar](https://openindex.co.uk/town/tredegar), [Mountain Ash](https://openindex.co.uk/town/mountain-ash), [Ebbw Vale](https://openindex.co.uk/town/ebbw-vale), [Bargod](https://openindex.co.uk/town/bargod), [Treorchy](https://openindex.co.uk/town/treorchy) ## Latest updates for Merthyr Tydfil - 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/W45000388 ## How to cite Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/town/merthyr-tydfil, or to one figure with its anchor, https://openindex.co.uk/town/merthyr-tydfil#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 2026.10.9. The HTML page: https://openindex.co.uk/town/merthyr-tydfil