CM17 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 522 postcodes across 2 sectors in Harlow.
Full fibre
0%
Gigabit
77%
Superfast
97%
Postcodes
522
CM17 covers 522 postcodes in Epping Forest with 77.1% gigabit capability through cable infrastructure.
Broadband speeds in CM17
Share of CM17 premises by the fastest download speed available, averaged across all 522 postcodes in the district.
Superfast broadband reaches 96.6% of premises. Gigabit services are available to 77.1%, driven by cable networks deployed across the district. A gap opens between ultrafast at 78.2% and gigabit at 77.1%, suggesting some fibre-to-the-cabinet deployments without gigabit-level provision. The speed distribution shows 78.2% at 300 Mbps and above, with 18.4% occupying 30-300 Mbps. Only 1% sit below 10 Mbps. Below-USO coverage is negligible at 0.2%. Wireless broadband adds minimal coverage at 0.5%, indicating cable is the dominant technology. Most households have excellent speed options available.
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
<1%
Premises unable to get the 10 Mbps universal service minimum
Fixed wireless
<1%
Premises that can use a fixed wireless access service
Broadband by sector
CM17 splits into 2 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 |
|---|---|---|---|---|
| CM17 0 | 239 | 97% | 0% | 75% |
| CM17 9 | 283 | 96% | 0% | 79% |
All CM17 0 postcodes (239)
All CM17 9 postcodes (283)
Best deals
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Living in Harlow
CM17 mirrors strong cable performance across Epping Forest. Cable-native gigabit is the baseline expectation. Premises lacking gigabit access occupy a small minority.
Remote worker score
54/100
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
CM17 broadband FAQs
What's the gigabit availability here?
Gigabit access reaches 77.1% of postcodes, broadly in line with neighbouring areas.
Is there a notable population on slower speeds?
Only 18.4% occupy the 30-300 Mbps band, so slower-speed areas are scattered exceptions.
Why is ultrafast slightly higher than gigabit-specific?
Some premises have superfast fibre-to-the-cabinet connections rated at 30-300 Mbps without gigabit capability.
Should premises plan for gigabit availability?
Three-quarters can access gigabit-capable services; checks for specific postcodes remain essential for certainty.
Neighbouring districts
Check your exact postcode
Every postcode in CM17 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