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, by gigabit broadband

No home or business can get gigabit: 17
Some can get gigabit: 67
Every home and business can get gigabit: 225
Ofcom gives no figure: 1

Of the 310 postcodes in CF42 that ONS places, 17 have no home or business that can get gigabit, 67 have some that can, 225 can all get it and 1 have no Ofcom figure.

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. 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; gigabit: Ofcom, Connected Nations, Spring 2026; 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

Postcodes without gigabit

17 postcodes here have no gigabit. These are the 12 first in postcode order.

CF42 5AQ CF42 5AX CF42 5DA CF42 5DP CF42 5DW CF42 5JJ CF42 5PH CF42 5SD CF42 5SX CF42 6AX CF42 6DH CF42 6EP

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.

Postcodes where every home can get gigabit225 of 309

Postcodes where every home can get superfast290 of 309

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 checker

Source: 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.

£122,500 typical price, the 12 months to August 2026

£122,250 12 months to August 2025

▲ up 0.2% on the 12 months before

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