Broadband in Denbighshire
Coverage, speeds and prices for 3,360 postcodes across 11 postcode districts. Real data from Ofcom, Land Registry and Police.uk.
Superfast
91%
Full fibre
0%
Gigabit
76%
Postcodes
3,360
Broadband in Denbighshire comes with a caveat the headline hides. Coverage looks respectable at 91.4% superfast, but 4.3% of postcodes, around one in 23, still run below 10Mbps.
Browse Denbighshire by postcode district
Denbighshire covers 11 postcode districts with 3,360 postcodes in total. Coverage varies district by district, so pick yours for a full breakdown.
CH7
72 postcodes
87% superfast
CH8
1 postcodes
100% superfast
LL11
28 postcodes
78% superfast
0% full fibre
LL15
445 postcodes
82% superfast
0% full fibre
LL16
535 postcodes
88% superfast
0% full fibre
LL17
230 postcodes
84% superfast
0% full fibre
LL18
1,013 postcodes
98% superfast
0% full fibre
LL19
554 postcodes
100% superfast
0% full fibre
LL20
194 postcodes
91% superfast
0% full fibre
LL21
277 postcodes
83% superfast
0% full fibre
LL22
11 postcodes
57% superfast
0% full fibre
Broadband speeds in Denbighshire
Share of premises by the fastest download speed available, averaged across every Denbighshire postcode.
Superfast availability across Denbighshire's 3,360 postcodes stands at 91.4%, a few points below the UK norm of roughly 97 per cent. Gigabit-capable coverage reaches 75.8%, so three postcodes in four can order the top tiers. The slow tail deserves attention. At 4.3%, the share of postcodes below 10 Mbps is small in absolute terms yet large enough that some households will find every fast option unavailable. Eleven outward codes feed these figures, among them LL11, LL15, LL16, LL20, LL21 and LL22. Full fibre is recorded at zero throughout, but with gigabit coverage this high the interpretation is cable network coverage rather than a lack of fast connections. The same dataset, in other words, contains gigabit-ready postcodes and sub-10 Mbps lines side by side.
Source: Ofcom Connected Nations. Percentages are averages of postcode-level availability, so rows may not sum to exactly 100%.
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Denbighshire at a glance
Anyone checking addresses should look beyond the average. Three quarters of postcodes can take gigabit services, which comfortably covers most household needs. The 4.3% below 10 Mbps is the risk case, since a household in that band would struggle with routine video calls. Superfast coverage of 91.4% keeps the typical postcode well served.
Remote worker score
53/100
Connectivity and amenities for home working
Family score
50/100
Schools, safety and family amenities
Denbighshire broadband FAQs
What is broadband like in Denbighshire overall?
Mixed. 91.4% of postcodes have superfast availability and 75.8% are gigabit-capable, but 4.3% still fall below 10Mbps.
Is slow broadband still common in Denbighshire?
Slow speeds remain. Around one postcode in 23, or 4.3%, records speeds under 10 Mbps.
Can I order gigabit broadband in the LL postcode areas here?
Often yes. Gigabit-capable coverage runs at 75.8% across the eleven outward codes, which include LL11, LL15, LL16, LL20, LL21 and LL22. Verify your specific address since some postcodes fall outside this figure.
Does Denbighshire hit the UK superfast norm?
Not quite. Coverage of 91.4% sits below the national level of about 97 per cent.
What does the 4.3% below 10Mbps figure mean in practice?
Roughly one postcode in 23 cannot reach speeds adequate for reliable video calls or streaming, so the area average hides some genuinely poor lines.
Check your exact postcode
Every postcode in Denbighshire 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