CF42 postcode district: Treorchy and around, Rhondda Cynon Taf
CF42 is a postcode district in Wales, with 310 postcodes in use in 3 sectors. It has postcodes in Treorchy and Treherbert. Its council is Rhondda Cynon Taf.
- Postcodes in use
- 310
- Sectors
- 3
- 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 CF42, and which are new since 2020
- New since 2020: 6
- In use before 2020: 304
Of the 310 postcodes in CF42 that ONS places, 6 are new since 2020 and 304 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 51.6675, longitude -3.5242. 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
What broadband can you get in CF42?
Ofcom reports on 309 of the 310 postcodes in CF42. At 225 of them every home and business can get gigabit broadband.
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 CF42?
Homes in CF42 sold for a typical £122,500 in the 12 months to August 2026, across 128 sales, up 0.2% on the 12 months before, HM Land Registry's figures show.
- Detached £300,000 9 sales
- Semi-detached £176,500 8 sales
- Terraced £120,000 111 sales
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 CF42
Pick a sector, then a postcode. A sector is the district plus the next digit.
UK postcode format explainedPlaces in CF42
Towns and villages with postcodes in CF42, and how many each has here.
Who covers CF42
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
- Rhondda and Ogmore310
Police force areas
- South Wales310
Next to CF42
"Next to" is by number: the districts before and after CF42 in the CF area.
Check a postcode
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