Merthyr Tydfil Broadband Coverage
Data updated June 2026
Every figure on PlainBroadband is rendered directly from Ofcom Connected Nations data, no number is typed in by an editor. Local authority figures are computed directly from Ofcom Connected Nations data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.
Ranked #188 of 361 UK local authorities by full-fibre coverage. 76.4% is below the UK national average of 77.5%.
The verdict
Merthyr Tydfil is mid-table for full-fibre, with room to close the gap - ranked #188 of 361 UK local authorities (bottom 48.2%) with 76.4% full-fibre coverage, 1.1pp below the 77.5% UK average.
About Broadband in Merthyr Tydfil
Merthyr Tydfil is a local authority district in Wales with 28,864 premises in the Ofcom Connected Nations 2025 dataset. Full-fibre (FTTP) broadband is available to 76.4% of premises, and gigabit-capable connectivity reaches 76.4%. Superfast broadband (≥30 Mbit/s) is accessible to 99.1% of premises. Merthyr Tydfil ranks 188th nationally out of 361 local authorities by full-fibre coverage.
The gigabit and full-fibre figures reflect the proportion of addresses that can order an FTTP connection from at least one provider, availability does not imply that every household has taken up a service. Full-fibre take-up across all premises stands at 46%, and among premises where coverage is available the figure is 60%. Ofcom defines gigabit-capable as the ability to receive download speeds of at least 1,000 Mbit/s, which in practice means a full-fibre or qualifying cable network must pass the property.
All measured premises meet the Universal Service Obligation threshold of 10 Mbit/s down / 1 Mbit/s up. Fixed wireless access (FWA) is available to 1.6% of premises, providing an alternative to fixed-line broadband for homes and businesses that cannot easily receive FTTP. Figures are drawn from operator network-coverage data submitted to Ofcom and verified through the Connected Nations 2025 methodology. See our methodology page for full details on how premises counts and coverage percentages are calculated.
Coverage by Technology - Merthyr Tydfil
Where Merthyr Tydfil Sits Nationally
Merthyr Tydfil vs every UK local authority
Full-fibre coverage distribution across all 361 UK local authorities. Merthyr Tydfil's 76.4% places it in the highlighted band.
76.4% Bottom 48.2% ranked #188 of 361 UK authorities
every UK local authority, bucketed by full-fibre coverage
Source: Ofcom Connected Nations 2025 (July 2025, r01)
Full Coverage Data
| Metric | Coverage | Definition |
|---|---|---|
| Full-Fibre (FTTP) | 76.4% | Fibre to the Premises, optical fibre all the way to the property |
| Gigabit-Capable | 76.4% | ≥1,000 Mbit/s download speed available |
| Ultrafast Broadband (≥300 Mbit/s) | 76.4% | UFBB - ≥300 Mbit/s download speed available |
| Ultrafast (≥100 Mbit/s) | 76.4% | ≥100 Mbit/s download speed available |
| Superfast (≥30 Mbit/s) | 99.1% | SFBB - ≥30 Mbit/s download speed available |
| NGA (any next-generation access) | 99.7% | Any NGA network available |
| Fixed Wireless Access (FWA) | 1.6% | Wireless-only fixed broadband (no physical cable) |
| Below USO Threshold | 0% | Below 10 Mbit/s down / 1 Mbit/s up USO minimum |
| Full-Fibre Take-Up (all premises) | 46% | % of all premises actively using a full-fibre connection |
| Full-Fibre Take-Up (covered premises) | 60% | % of premises where FTTP is available that have taken it up |
| Total Premises | 28,864 | All premises in Ofcom's matched dataset |
| National Rank (Full-Fibre) | #188 / 361 | Ranking among all UK local authorities by full-fibre coverage |
Coverage Analysis
Merthyr Tydfil's full-fibre coverage of 76.4% places it at rank 188 nationally. The gap between full-fibre availability (76.4%) and gigabit availability (76.4%) reflects whether any qualifying cable networks supplement the FTTP rollout in this district. Where the two figures are close, full-fibre is effectively the sole gigabit delivery mechanism.
Superfast coverage at 99.1% gives a sense of the floor for most residents, the majority of premises in Merthyr Tydfil can receive at least 30 Mbit/s. The USO gap of 0% represents premises that cannot yet access the government-mandated minimum of 10 Mbit/s download and 1 Mbit/s upload. In rural local authorities this figure can reach double digits; in dense urban areas it typically approaches zero.
Take-up data provides a demand-side view. With 46% of all premises actively using full-fibre, Merthyr Tydfil gives a clear picture of how quickly residents are switching to future-proof connections as they become available.
Related
Frequently Asked Questions
What is the full-fibre broadband coverage in Merthyr Tydfil?
According to Ofcom Connected Nations 2025 (July 2025, r01), 76.4% of premises in Merthyr Tydfil have access to full-fibre (FTTP) broadband. Full-fibre connects properties using optical fibre all the way from the exchange, enabling gigabit-speed connections. The UK national average is approximately 77.5%.
How does Merthyr Tydfil compare nationally for broadband coverage?
Merthyr Tydfil ranks 188th out of 361 UK local authorities by full-fibre coverage (76.4%). Gigabit-capable coverage stands at 76.4% and superfast (≥30 Mbit/s) coverage at 99.1%. Figures are from Ofcom Connected Nations 2025.
Does Merthyr Tydfil meet the broadband Universal Service Obligation?
The Broadband Universal Service Obligation (USO) guarantees access to at least 10 Mbit/s download and 1 Mbit/s upload. Ofcom's Connected Nations 2025 data shows all measured premises in Merthyr Tydfil meet this threshold.
Source: Ofcom, Connected Nations 2025, UK Fixed Broadband Coverage (July 2025, r01). Retrieved and formatted by PlainBroadband Editorial. Disclaimer: Coverage figures show availability, not guaranteed service quality or actual take-up. Published under the Open Government Licence v3.0.