Slough

Broadband in Slough

Coverage, speeds and prices for 2,648 postcodes across 6 postcode districts. Real data from Ofcom, Land Registry and Police.uk.

Superfast

99%

Full fibre

0%

Gigabit

95%

Postcodes

2,648

Gigabit-capable broadband is recorded at 94.8% of Slough's 2,648 postcodes, and superfast at 98.9%. Only 0.2% of postcodes sit below 10 Mbps.

Browse Slough by postcode district

Slough covers 6 postcode districts with 2,648 postcodes in total. Coverage varies district by district, so pick yours for a full breakdown.

Broadband speeds in Slough

Share of premises by the fastest download speed available, averaged across every Slough postcode.

Superfast coverage of 98.9% clears the national norm of roughly 97%, but the more useful figure is at the top end. 94.8% of postcodes have a gigabit-capable option recorded, so the fastest packages on the market are orderable at roughly nineteen postcodes in twenty. The slow tail has effectively disappeared, at 0.2% of postcodes below 10 Mbps, which across 2,648 postcodes amounts to a handful. All of this sits within just 6 outward codes, SL0 to SL4 plus SL6, so the whole borough's data fits in a small set of codes. For a mover, the realistic worst case at the vast majority of addresses is superfast rather than slow, and the likeliest case is a full gigabit menu. The choice facing most households is price and contract length, not availability.

Under 2 Mbps
0%
2 to 5 Mbps
<1%
5 to 10 Mbps
<1%
10 to 30 Mbps
<1%
30 to 300 Mbps
4%
300 Mbps and above
95%

Source: Ofcom Connected Nations. Percentages are averages of postcode-level availability, so rows may not sum to exactly 100%.

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Slough at a glance

The speed mix removes most of the usual caveats. At nearly every postcode a heavy household, running simultaneous streams, calls and backups, can buy headroom rather than ration bandwidth. The 0.2% below 10 Mbps is small enough that it will not affect the typical search. If anything, the risk for Slough residents is overbuying, paying gigabit prices for usage a mid-tier superfast deal would cover.

Remote worker score

55/100

Connectivity and amenities for home working

Family score

50/100

Schools, safety and family amenities

Slough broadband FAQs

How likely is gigabit availability at a Slough address?

Very likely. 94.8% of postcodes have a gigabit-capable option recorded.

Does any part of Slough still have slow broadband?

Almost none. 0.2% of the 2,648 postcodes fall below 10 Mbps.

Is Slough ahead of the national average for superfast?

Yes, at 98.9% against roughly 97% nationally.

Which outward codes does the Slough data cover?

Six: SL0, SL1, SL2, SL3, SL4 and SL6.

Do I need to confirm my postcode before ordering in Slough?

It rarely changes the answer here, but a quick postcode search confirms whether you sit in the 94.8% gigabit-ready majority.

Check your exact postcode

Every postcode in Slough 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