# CF45

Postcode district covering Mountain Ash, Abercynon and Miskin, in Rhondda Cynon Taf.

CF45 is a postcode district covering Mountain Ash, Abercynon and Miskin, in Rhondda Cynon Taf. Median sale price £125,000 in 2025.

Postcode district. Code CF45. In: [Postcodes](https://openindex.co.uk/postcode) › [CF](https://openindex.co.uk/postcode/cf)

Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an CF45 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £125,000** (2025). The median price paid for a home in CF45 was £125,000 in 2025. Joint 32nd cheapest of 2,235. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026. https://openindex.co.uk/postcode/cf45#f-house-sales-median-price
- **Population: 19,378** (2021). CF45 had 19,378 usual residents at the census (ONS Census 2021). 1,253rd least populated of 2,756. 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/postcode/cf45#f-population
- **People in radon Affected Area squares: 99%** (2022). About 99% of people in CF45 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/postcode/cf45#f-radon-affected-share
- **Gigabit broadband coverage: 71.0%** (January 2026). In CF45, 71.0% 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/postcode/cf45#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas#place=CF45) (Worked out by Open Index · 2022): About 99% of people in CF45 live in a 1 km square that the radon atlas marks as a radon Affected Area.
- [Sales per year by postcode district](https://openindex.co.uk/map/house-sales-per-year#place=CF45) (Worked out by Open Index · 2025): 198 homes were sold in CF45 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime#place=CF45) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for CF45.
- [Population by postcode district](https://openindex.co.uk/map/population#place=CF45) (Census 2021, England and Wales): CF45 had 19,378 usual residents at the census.

## How CF45 compares

Each postcode district against every other postcode district the measure covers.

| Measure | CF45 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £125,000 | joint 2nd cheapest | 35 postcode districts, CF · 2025 |
| Population | 19,378 | 12th least populated | 35 postcode districts, CF · 2021 |
| People in radon Affected Area squares | 99% | joint 12th most people in radon Affected Areas | 35 postcode districts, CF · 2022 |
| Gigabit broadband coverage | 71.0% | 4th lowest | 35 postcode districts, CF · Jan 2026 |

## Is CF45 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in CF45 at a rate of 88.4 per 1,000 people.
That compares with 96.0 per 1,000 people across the CF postcode area.
In August 2026 alone, 185 cases of crime and anti-social behaviour were recorded in CF45.
In the 12 months to August 2026, the most common types were violence and sexual offences (870), other crime (364) and anti-social behaviour (178).
A year earlier, the recorded crime rate in CF45 was 91.3 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 CF45, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so CF45 has no single figure. Of its 13 neighbourhoods with a rank:
- Decile 1 (Wales’s most deprived 10%): 3 neighbourhoods
- Decile 2: 2 neighbourhoods
- Decile 3: 5 neighbourhoods
- Decile 6: 2 neighbourhoods
- Decile 7: 1 neighbourhood

Source: Welsh Index of Multiple Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in Wales.

## Neighbourhoods in CF45

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Rhondda Cynon Taf 006A](https://openindex.co.uk/rhondda-cynon-taf/neighbourhood/w01001204) | 1,530 | 32.9 per 1,000 | 7 | 96.3% |
| [Rhondda Cynon Taf 006B](https://openindex.co.uk/rhondda-cynon-taf/neighbourhood/w01001205) | 1,459 | 118.8 per 1,000 | 3 | 90.4% |
| [Rhondda Cynon Taf 006C](https://openindex.co.uk/rhondda-cynon-taf/neighbourhood/w01001206) | 1,461 | 56.1 per 1,000 | 3 | 89.4% |
| [Rhondda Cynon Taf 006D](https://openindex.co.uk/rhondda-cynon-taf/neighbourhood/w01001207) | 1,278 | 174.6 per 1,000 | 1 | 93.7% |
| [Rhondda Cynon Taf 006E](https://openindex.co.uk/rhondda-cynon-taf/neighbourhood/w01001208) | 1,521 | 112.6 per 1,000 | 3 | 90.0% |
| [Rhondda Cynon Taf 008A](https://openindex.co.uk/rhondda-cynon-taf/neighbourhood/w01001209) | 1,453 | 144.6 per 1,000 | 1 | 98.3% |
| [Rhondda Cynon Taf 008B](https://openindex.co.uk/rhondda-cynon-taf/neighbourhood/w01001210) | 1,456 | 73.9 per 1,000 | 2 | 99.0% |
| [Rhondda Cynon Taf 008C](https://openindex.co.uk/rhondda-cynon-taf/neighbourhood/w01001211) | 1,531 | 63.3 per 1,000 | 3 | 99.6% |
| [Rhondda Cynon Taf 008D](https://openindex.co.uk/rhondda-cynon-taf/neighbourhood/w01001212) | 1,311 | 87.2 per 1,000 | 2 | 97.8% |
| [Rhondda Cynon Taf 012A](https://openindex.co.uk/rhondda-cynon-taf/neighbourhood/w01001143) | 1,488 | 68.7 per 1,000 | 6 | 23.0% |
| [Rhondda Cynon Taf 012B](https://openindex.co.uk/rhondda-cynon-taf/neighbourhood/w01001144) | 1,730 | 79.7 per 1,000 | 1 | 64.9% |
| [Rhondda Cynon Taf 012C](https://openindex.co.uk/rhondda-cynon-taf/neighbourhood/w01001145) | 1,746 | 92.9 per 1,000 | 3 | 2.3% |
| [Rhondda Cynon Taf 012D](https://openindex.co.uk/rhondda-cynon-taf/neighbourhood/w01001146) | 1,411 | 56.8 per 1,000 | 6 | 0.1% |

## Your MP

- [Pontypridd](https://openindex.co.uk/constituency/pontypridd): Alex Davies-Jones (Labour), MP since July 2024. 100% of the people here.
- [Merthyr Tydfil and Aberdare](https://openindex.co.uk/constituency/merthyr-tydfil-and-aberdare): Gerald Jones (Labour), MP since July 2024. 0.5% of the people here.

As of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

## Middle areas in CF45

[Abercynon](https://openindex.co.uk/rhondda-cynon-taf/abercynon), [Mountain Ash](https://openindex.co.uk/rhondda-cynon-taf/mountain-ash), [Penrhiw-ceibr](https://openindex.co.uk/rhondda-cynon-taf/penrhiw-ceibr)

## Postcode sectors in CF45

[CF45 3 (204 postcodes)](https://openindex.co.uk/postcode/cf45-3), [CF45 4 (233 postcodes)](https://openindex.co.uk/postcode/cf45-4)

## Council

[Rhondda Cynon Taf](https://openindex.co.uk/rhondda-cynon-taf)

## Towns in CF45

[Mountain Ash](https://openindex.co.uk/town/mountain-ash)

## Postcode districts next to CF45

[CF37](https://openindex.co.uk/postcode/cf37), [CF44](https://openindex.co.uk/postcode/cf44), [CF46](https://openindex.co.uk/postcode/cf46), [CF48](https://openindex.co.uk/postcode/cf48)

## Nearest rail stations

[Mountain Ash (300 m from the middle)](https://openindex.co.uk/map/rail-stations#around=-3.3763,51.6813), [Fernhill (1.2 km from the middle)](https://openindex.co.uk/map/rail-stations#around=-3.3959,51.6865), [Penrhiwceiber (2.0 km from the middle)](https://openindex.co.uk/map/rail-stations#around=-3.3599,51.6699), [Merthyr Vale (3.0 km from the middle)](https://openindex.co.uk/map/rail-stations#around=-3.3366,51.6867)

## More in the CF postcode area

[All CF postcode districts](https://openindex.co.uk/postcode/cf), [Every UK postcode area](https://openindex.co.uk/postcode)

## CF45 in brief

CF45 is a postcode district covering Mountain Ash, Abercynon and Miskin, in Rhondda Cynon Taf.
About 19,733 people lived in CF45 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £125,000 in 2025 across 198 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 88.4 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in CF45 was £125,000 in 2025.
CF45 had 19,378 usual residents at the census.
About 99% of people in CF45 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In CF45, 71.0% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: CF45
- Postcode area: [CF](https://openindex.co.uk/postcode/cf)
- Constituency: [Pontypridd †](https://openindex.co.uk/constituency/pontypridd)
- Council: [Rhondda Cynon Taf †](https://openindex.co.uk/rhondda-cynon-taf)
- Area: 23.30 km²
- People, mid-2024: 19,733*
- Neighbourhoods: 13
- Output areas: 65

* 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, council and nation this postcode district mostly lies in. Its edges do not follow theirs.

## Next door

[CF37](https://openindex.co.uk/postcode/cf37), [CF46](https://openindex.co.uk/postcode/cf46), [CF44](https://openindex.co.uk/postcode/cf44), [CF48](https://openindex.co.uk/postcode/cf48)

## Latest updates for CF45

- 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/CF45

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/cf45, or to one figure with its anchor, https://openindex.co.uk/postcode/cf45#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/postcode/cf45