CF45 postcode district: Mountain Ash and around, Rhondda Cynon Taf
CF45 is a postcode district in Wales, with 437 postcodes in use in 2 sectors. It has postcodes in Mountain Ash and Abercynon. Its council is Rhondda Cynon Taf.
- Postcodes in use
- 437
- Sectors
- 2
- Council
- Rhondda Cynon Taf
- Places
- 2 places
Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026. See all our data sources
Every postcode in CF45, and which are new since 2020
- New since 2020: 2
- In use before 2020: 435
Of the 437 postcodes in CF45 that ONS places, 2 are new since 2020 and 435 were in use before 2020.
Each mark is a postcode's centre point as ONS gives it, not a building. Press one to see its postcode and open its page. New since 2020 means it came into use in January 2020 or later. No boundary is drawn. Where marks overlap, the one first in the key is drawn; the counts include every postcode.
The middle of its postcodes: latitude 51.6695, longitude -3.3621. Open this area on OpenStreetMap
Source: Office for National Statistics (ONS) Postcode Directory, August 2026, loaded 20 October 2026, the centre point of each postcode; when each came into use: the same directory; roads, rivers and built-up areas: Contains OS data © Crown copyright and database right 2026. Drawn by us. Street map: Ordnance Survey, OS Open Zoomstack, Open Government Licence v3.0, drawn with MapLibre. How we use them
The 2 newest postcodes
What broadband can you get in CF45?
Ofcom reports on 434 of the 437 postcodes in CF45. At 249 of them every home and business can get gigabit broadband, and at 2 some cannot get decent broadband (10 Mbit/s).
Ofcom gives each postcode's share of homes and businesses, not how many there are, so these count postcodes. Each postcode page has its own figures. A provider's checker answers for one address.
Check one address on Ofcom's checkerSource: Ofcom, Connected Nations, Spring 2026, data for January 2026, Open Government Licence v3.0. How we use it
What do homes sell for in CF45?
Homes in CF45 sold for a typical £130,000 in the 12 months to August 2026, across 171 sales, up 7.7% on the 12 months before, HM Land Registry's figures show.
- Detached £329,750 14 sales
- Semi-detached £157,498 32 sales
- Terraced £125,000 121 sales
- Flat or maisonette 4 sales, too few to price
Each bar is that kind's typical price, against the most expensive kind here.
Standard sales of homes at market value. A typical price is the median, the middle sale. Sales take weeks to be registered, so the last month or two are incomplete. Each postcode page gives the figure for its own postcode sector.
Source: HM Land Registry Price Paid Data, files dated 28 September 2026. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0. How we use it
Postcodes in CF45
Pick a sector, then a postcode. A sector is the district plus the next digit.
UK postcode format explainedPlaces in CF45
Towns and villages with postcodes in CF45, and how many each has here.
Who covers CF45
How many of the district's postcodes in use fall under each council, constituency and police force area.
Councils
What council am I in?Constituencies
- Pontypridd435
- Merthyr Tydfil and Aberdare2
Police force areas
- South Wales437
Next to CF45
"Next to" is by number: the districts before and after CF45 in the CF area.
Check a postcode
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