HA4 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 1,113 postcodes across 5 sectors in Hillingdon.
Full fibre
0%
Gigabit
93%
Superfast
99%
Postcodes
1,113
Harrow has 1113 postcodes. Gigabit coverage reaches 93.3%. Below-10-Mbps postcodes are rare.
Broadband speeds in HA4
Share of HA4 premises by the fastest download speed available, averaged across all 1,113 postcodes in the district.
Cable gigabit networks cover 93.3% of Harrow's postcodes, delivering future-ready speeds to the majority. Harrow benefits from extensive cable network deployment. Superfast coverage (30 to 300 Mbps) spans 99.3% of premises. The UK average stands at 97%; Harrow's 99.3% is on par or ahead. Across the district, 94.4% of postcodes sit on gigabit networks, while 4.9% rely on superfast alone. This split means most premises can stream and video conference without issue. 0.3% of postcodes, roughly 3 locations, fall below 10 Mbps. These are the Universal Service Obligation threshold. Harrow's infrastructure provides reliable postcodewide reach.
Source: Ofcom Connected Nations. Percentages are district-wide averages of postcode-level availability, so rows may not sum to exactly 100%.
Connectivity in detail
Below 10 Mbps USO
0%
Premises unable to get the 10 Mbps universal service minimum
Fixed wireless
0%
Premises that can use a fixed wireless access service
Broadband by sector
HA4 splits into 5 postcode sectors. Coverage and prices can differ street by street, so open a sector below to find your exact postcode.
| Sector | Postcodes | Superfast | Full fibre | Gigabit |
|---|---|---|---|---|
| HA4 0 | 218 | 100% | 0% | 97% |
| HA4 6 | 222 | 99% | 0% | 93% |
| HA4 7 | 255 | 99% | 0% | 87% |
| HA4 8 | 219 | 99% | 0% | 93% |
| HA4 9 | 199 | 100% | 0% | 98% |
All HA4 0 postcodes (218)
All HA4 6 postcodes (222)
All HA4 7 postcodes (255)
All HA4 8 postcodes (219)
All HA4 9 postcodes (199)
Best deals
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Living in Hillingdon
The speed distribution across Harrow varies by postcode. 94.4% access gigabit networks, 4.9% sit on superfast, with remainder at lower tiers. This mix supports streaming, video conferencing, and large downloads for the majority. Sub-10-Mbps postcodes are few and minimally disruptive.
Remote worker score
55/100
Connectivity and amenities for home working
Family score
50/100
Schools, safety and family amenities
Value score
50/100
What you get for the local price level
HA4 broadband FAQs
What percentage of Harrow receives gigabit coverage?
93.3% of postcodes are served by gigabit networks. This is the primary connectivity infrastructure across the district.
How many postcodes in Harrow fall below 10 Mbps?
3 postcodes, or 0.3% of the total. These qualify for Universal Service Obligation support.
Does Harrow meet the superfast 30 Mbps standard?
Yes. 99.3% of postcodes exceed 30 Mbps, matching or exceeding the UK average.
What speeds should households expect in Harrow?
94.4% access gigabit (300 plus Mbps), while 4.9% see superfast (30 to 300 Mbps). Streaming and home work are achievable across most areas.
Neighbouring districts
Check your exact postcode
Every postcode in HA4 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