Worst broadband coverage in the UK

The UK area with the lowest gigabit-capable broadband coverage is Na h-Eileanan Siar at just 9.6%. The average across the 367 ranked areas is 84.6%. Low coverage clusters in rural and remote areas where the economics of laying fibre are harder to make work.
Data last updated: 1 September 2026

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Every UK local authority ranked by gigabit-capable broadband coverage, based on Ofcom's Connected Nations data (July 2025). Na h-Eileanan Siar sits at the bottom at just 9.6%, with Shetland Islands (17.7%) and Argyll and Bute (21.8%) close behind.

Being at the bottom of this table does not necessarily mean broadband is unusable. Superfast (30+ Mbit/s) is far more widely available and covers everyday household needs; the shortfall shown here is in the newest gigabit tier.

Showing 367 of 367 areas.

UK average 84.6%
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1 Na h-Eileanan Siar Scotland 9.6% 9.6% £739 £28,746
2 Shetland Islands Scotland 17.7% 17.7% £739 £35,716
3 Argyll and Bute Scotland 21.8% 21.8% £822 £30,436
4 Orkney Islands Scotland 25.4% 25.4% £739 £31,737
5 Aberdeenshire Scotland 43.9% 43.9% £845 £33,799
6 North Norfolk East of England 50.7% 50.7% £865 £28,421
7 Isles of Scilly South West 50.9% 50.9% N/A N/A
8 Ceredigion Wales 51.0% 51.0% £723 £29,326
9 Dumfries and Galloway Scotland 53.6% 53.6% £558 £29,649
10 Perth and Kinross Scotland 53.9% 34.1% £739 £31,851

Scottish rents are published for 18 rental market areas, not for each council, so neighbouring councils can share a rent figure.

A closer look at the top 10

Which UK areas have the worst broadband?

Na h-Eileanan Siar in the Outer Hebrides has the lowest gigabit-capable coverage in the UK at 9.6%. In practical terms that means roughly 90 out of every 100 homes on the islands cannot order a gigabit connection today.

The bottom five are all Scottish and all island or Highland authorities: Na h-Eileanan Siar (9.6%), Shetland Islands (17.7%), Argyll and Bute (21.8%), Orkney Islands (25.4%) and Aberdeenshire (43.9%). 7 of the 10 lowest-ranked authorities in the UK sit in Scotland.

The picture is not exclusively Scottish. Ceredigion in Wales sits inside the bottom 10 at just above 50% gigabit coverage, and both North Norfolk and the Isles of Scilly on the English side sit at a similar level. What these authorities have in common is not their nation but their geography: dispersed housing, difficult terrain, and small populations spread across large areas.

Why is rural broadband still so far behind?

Fibre rollout is a per-premises economics problem. In an urban street a single trench serves dozens of homes; in a Highland glen the same trench might serve one property. The commercial operators (Openreach, Virgin Media, altnets) prioritise areas where they can recover the build cost quickly, which pushes rural areas to the back of the queue.

Government intervention exists to close the gap. Project Gigabit is the main UK-wide programme, contracting suppliers to reach hard-to-connect premises with public subsidy. It is working, but it takes time; regional contracts are being awarded and delivered in phases, and the very hardest premises will be the last connected.

The urban-rural divide is stark in the numbers. Across this ranking, the top 20 authorities average 97.8% gigabit coverage while the bottom 20 average 48.6%: a gap of roughly 49.2 percentage points. That is not a small tail. It is a national split that any move away from the biggest cities is likely to run into.

Are things getting better?

Yes, quickly. Full fibre coverage in the UK has climbed from around 10% of premises in 2019 to roughly 78% in mid-2025, one of the fastest fibre rollouts in Europe. Gigabit-capable coverage (which includes cable) sat at 87% in this July 2025 release and reached 89% in Ofcom's Spring 2026 update, so the national total is still moving up by a couple of points a year.

The catch is the shape of the curve. The easy premises (dense terraced streets, new-build estates, small towns near existing fibre) get connected first. The last-mile problem is real: the final few percentage points to reach every UK home take disproportionately longer, which is why the bottom of this ranking will move up more slowly than the top.

What to consider if you're moving to an area with poor broadband

Broadband coverage is worth checking before you move rather than after. Every LiveWhere area profile shows the current Ofcom figures, and Ofcom's own address-level checker gives a more precise answer for a specific postcode. Real-world speeds also depend on the package you buy and the in-home wiring, so a speed test at the property (or asking the seller/agent to run one) is a sensible extra step.

Fixed-line fibre is not the only option in poorly-covered areas. Fixed wireless access from providers like Three, EE and Vodafone can deliver 100 Mbit/s+ over 4G or 5G where the mast coverage is good. Starlink and other low-earth-orbit satellite services now cover the whole UK and deliver 100 to 250 Mbit/s at a premium price point. In some rural areas, these alternatives are already faster than the fixed-line options on offer.

If broadband speed is a hard constraint on where you live, the flip side of this table is the best broadband coverage ranking. For a fuller view of any area, follow through to the individual profile: Cornwall and Highland are good starting points for what "rural with mixed coverage" looks like in the data.

Data and methodology

All figures come from Ofcom Connected Nations 2025, based on the July 2025 data return from UK broadband providers. Areas are ranked by residential gigabit-capable coverage (the percentage of homes where an active 1 Gbit/s connection can be ordered), lowest first. Coverage shows what is available at the premises, not the speed households actually receive. The ranking includes 367 UK local authorities where Ofcom publishes coverage data at authority level.

Key findings

  • Na h-Eileanan Siar has the lowest gigabit-capable coverage at 9.6% of premises.
  • 7 of the 10 lowest-ranked areas are in Scotland.
  • The average gigabit-capable coverage across all 367 ranked areas is 84.6%.
  • Several bottom-ranked areas still have 1%+ of premises unable to receive the 10 Mbit/s down / 1 Mbit/s up Universal Service Obligation.
Methodology

Coverage figures come from Ofcom Connected Nations, July 2025 release. Areas are ranked by gigabit-capable coverage (residential premises), lowest first. Rural authorities with dispersed premises tend to sit at the bottom because the cost of running fibre to widely-spaced homes is much higher than in dense urban areas. The ranking covers 367 UK local authorities where Ofcom publishes coverage data.

Read more about our data sources and approach on the About page.

Frequently asked questions about broadband coverage

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Journalists, researchers and bloggers are welcome to cite and share this analysis. Please include a follow link back to this page when referencing our data. For bespoke analysis, expert comment, or high-resolution graphics, get in touch via our press office.

Data on this page is sourced from: ONS Price Index of Private Rents (PIPR), Scottish Government Private Sector Rent Statistics, ONS Annual Survey of Hours and Earnings, ONS / HM Land Registry House Price Statistics, and MHCLG / Scottish Government / Welsh Government council tax data. All data is published under the Open Government Licence.

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