Broadband in Rhondda Cynon Taf
Coverage, speeds and prices for 5,341 postcodes across 15 postcode districts. Real data from Ofcom, Land Registry and Police.uk.
Superfast
97%
Full fibre
0%
Gigabit
71%
Postcodes
5,341
Rhondda Cynon Taf spans 5,341 postcodes across fifteen outward codes. Superfast broadband is available to 96.9% of them, and fewer than one postcode in 200 falls below 10Mbps.
Browse Rhondda Cynon Taf by postcode district
Rhondda Cynon Taf covers 15 postcode districts with 5,341 postcodes in total. Coverage varies district by district, so pick yours for a full breakdown.
CF15
124 postcodes
98% superfast
0% full fibre
CF35
18 postcodes
64% superfast
0% full fibre
CF37
864 postcodes
94% superfast
0% full fibre
CF38
445 postcodes
98% superfast
0% full fibre
CF39
532 postcodes
98% superfast
0% full fibre
CF40
468 postcodes
99% superfast
0% full fibre
CF41
247 postcodes
99% superfast
0% full fibre
CF42
309 postcodes
98% superfast
0% full fibre
CF43
254 postcodes
97% superfast
0% full fibre
CF44
1,000 postcodes
97% superfast
0% full fibre
CF45
434 postcodes
98% superfast
0% full fibre
CF48
1 postcodes
0% superfast
0% full fibre
CF72
642 postcodes
96% superfast
0% full fibre
CF83
2 postcodes
33% superfast
SA11
1 postcodes
0% superfast
Broadband speeds in Rhondda Cynon Taf
Share of premises by the fastest download speed available, averaged across every Rhondda Cynon Taf postcode.
Superfast coverage of 96.9% puts the county borough level with the UK average of about 97%. The below-10Mbps share is 0.4%, which across 5,341 postcodes translates to a scattering of poorly served spots rather than any broad problem.
Gigabit is where the area diverges from the national picture. A gigabit-capable service is available at 71% of postcodes, so a clear majority can order top-tier speeds but nearly three in ten cannot. That 29% gap is the figure worth knowing before a move. It does not mean slow broadband; almost every postcode outside the gigabit footprint still has superfast available. It means the ceiling varies from one postcode to the next in a way the superfast numbers alone would never show.
Source: Ofcom Connected Nations. Percentages are averages of postcode-level availability, so rows may not sum to exactly 100%.
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Rhondda Cynon Taf at a glance
Households moving within Rhondda Cynon Taf face a simple split. Roughly seven postcodes in ten offer gigabit options, giving heavy users all the capacity they are likely to want. The remainder top out at superfast, which remains comfortable for streaming and video calls. Since the below-10Mbps tail is only 0.4%, the realistic worst case here is a decent connection rather than a poor one.
Remote worker score
54/100
Connectivity and amenities for home working
Family score
50/100
Schools, safety and family amenities
Rhondda Cynon Taf broadband FAQs
What share of Rhondda Cynon Taf can get gigabit broadband?
71% of postcodes. The remaining 29% generally still have superfast available.
Is any part of Rhondda Cynon Taf still on very slow broadband?
Very little. Just 0.4% of the 5,341 postcodes fall below 10Mbps.
Does superfast coverage keep pace with the national figure?
It matches it. 96.9% here against roughly 97% across the UK.
How big is the Rhondda Cynon Taf postcode area?
5,341 postcodes spread across fifteen outward codes.
Will I need to verify speeds before signing a contract?
It is sensible, mainly to learn whether your address sits inside the 71% gigabit footprint or tops out at superfast.
Check your exact postcode
Every postcode in Rhondda Cynon Taf has its own page with broadband speeds, house prices, school ratings and crime stats. You can also compare providers for your address.
Data sources: Broadband data from Ofcom Connected Nations 2025 · House prices from HM Land Registry · Crime from Police.uk · See all data sources