CF48 postcode district: Merthyr Tydfil and around
CF48 is a postcode district in Wales, with 753 postcodes in use in 4 sectors. It has postcodes in Merthyr Tydfil, Troedyrhiw and Pentrebach and Aberfan. It is split between 4 councils: Merthyr Tydfil (745 postcodes), Caerphilly (3), Powys (3) and 1 other.
- Postcodes in use
- 753
- Sectors
- 4
- Councils
- 4 councils
- Places
- 3 places
Source: ONS Postcode Directory, August 2026, loaded 20 October 2026.
Every postcode in CF48, by gigabit broadband
- No home or business can get gigabit: 138
- Some can get gigabit: 122
- Every home and business can get gigabit: 486
- Ofcom gives no figure: 7
- Outline: where 5 or more postcodes without gigabit lie together
Of the 753 postcodes in CF48 that ONS places, 138 have no home or business that can get gigabit, 122 have some that can, 486 can all get it and 7 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. A dashed outline shows where 5 or more lie within 150 metres of each other. It is not a boundary, and 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 51.7416, longitude -3.3716. Open this area on OpenStreetMap
Sources: ONS Postcode Directory, August 2026, loaded 20 October 2026; Ofcom Connected Nations, Connected Nations, Spring 2026; roads, rivers and built-up areas: Ordnance Survey open maps. 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.
Postcodes without gigabit
138 postcodes here have no gigabit. These are the 12 first in postcode order.
Where the postcodes without gigabit lie together
What broadband can you get in CF48?
Ofcom reports on 746 of the 753 postcodes in CF48. At 486 of them every home and business can get gigabit broadband, and at 4 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, Connected Nations, Spring 2026, data for January 2026.
What do homes sell for in CF48?
Homes in CF48 sold for a typical £149,750 in the 12 months to September 2026, across 204 sales, HM Land Registry's figures show. The 12 months before gave £150,750 from 274 sales: not a change larger than chance would explain, given which homes happened to sell.
- Detached £285,000 33 sales
- Semi-detached £174,000 53 sales
- Terraced £126,000 117 sales
- Flat or maisonette 1 sale, 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 October 2026.
Postcodes in CF48
Pick a sector, then a postcode. A sector is the district plus the next digit.
UK postcode format explainedPlaces in CF48
Towns and villages with postcodes in CF48, and how many each has here.
Who covers CF48
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
- Merthyr Tydfil and Aberdare747
- Blaenau Gwent and Rhymney3
- Brecon, Radnor and Cwm Tawe3
Police force areas
- South Wales747
- Dyfed-Powys3
- Gwent3
Next to CF48
"Next to" is by number: the districts before and after CF48 in the CF area.
Check a postcode
Where the facts on this page come from
- Office for National Statistics: ONS Postcode Directory
- Ofcom Connected Nations
- HM Land Registry Price Paid Data
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2021. This data is licensed under the Open Government Licence v3.0.
Licence: Open Government Licence v3.0.
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