Broadband in Darlington
Coverage, speeds and prices for 2,955 postcodes across 6 postcode districts. Real data from Ofcom, Land Registry and Police.uk.
Superfast
93%
Full fibre
83%
Gigabit
83%
Postcodes
2,955
Darlington's data contains a genuine oddity: full fibre is recorded at 83.4% of postcodes, comfortably above the UK average, yet 32.8% of postcodes sit below 10Mbps. Both numbers come from the same 2,955 postcodes across six outward codes.
Browse Darlington by postcode district
Darlington covers 6 postcode districts with 2,955 postcodes in total. Coverage varies district by district, so pick yours for a full breakdown.
DL1
1,196 postcodes
96% superfast
85% full fibre
DL2
520 postcodes
79% superfast
71% full fibre
DL3
1,133 postcodes
96% superfast
90% full fibre
DL4
2 postcodes
0% superfast
0% full fibre
DL5
72 postcodes
95% superfast
36% full fibre
TS21
32 postcodes
48% superfast
Broadband speeds in Darlington
Share of premises by the fastest download speed available, averaged across every Darlington postcode.
Take the good half first. Full fibre at 83.4% beats the national figure of about 69% of premises passed, with DL3 at around nine in ten postcodes and DL1 not far behind. Gigabit-capable coverage runs at 82.5% and superfast at 92.5%. Then the strange half. Nearly a third of postcodes, 32.8%, record speeds below 10Mbps, an enormous tail for a town with this much fibre. The dataset does not explain the contradiction, and this page will not guess. What it does show is spread: DL4 has no recorded full fibre at all, DL5 reaches just over a third of its postcodes, and DL2 lands in between at close to seven in ten. Six outward codes, and almost the full range of outcomes among them.
Source: Ofcom Connected Nations. Percentages are averages of postcode-level availability, so rows may not sum to exactly 100%.
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Darlington at a glance
For households the two headline numbers pull in opposite directions, so the postcode level is the only sensible place to decide. An address in DL3 or DL1 will very likely have a full fibre option. DL4 shows none, and the 32.8% below-10Mbps share means slow service remains a live possibility somewhere in the town. Read Darlington's averages as a menu of extremes rather than a typical experience.
Remote worker score
50/100
Connectivity and amenities for home working
Family score
50/100
Schools, safety and family amenities
Darlington broadband FAQs
Why does Darlington show both high full fibre and a large slow tail?
The data records full fibre at 83.4% of postcodes and speeds below 10Mbps at 32.8% at the same time. It offers no explanation, so both figures should be read at face value.
Which Darlington outward codes lead on full fibre?
DL3, at around nine in ten postcodes, then DL1. DL2 sits near seven in ten.
Does any part of Darlington lack full fibre entirely?
Yes. DL4 records none, and DL5 covers just over a third of its postcodes.
How does the town compare with UK fibre averages?
Its 83.4% share is well above the national average of roughly 69% of premises passed.
Is gigabit broadband available across Darlington?
82.5% of the 2,955 postcodes have a gigabit-capable option recorded, leaving 17.5% without one.
Check your exact postcode
Every postcode in Darlington 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