HP21 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 706 postcodes across 3 sectors in Buckinghamshire.
Full fibre
0%
Gigabit
91%
Superfast
99%
Postcodes
706
HP21 is the strongest Buckinghamshire code in this batch, covering 706 postcodes with 92.5% high-speed availability and zero below-10-Mbps postcodes.
Broadband speeds in HP21
Share of HP21 premises by the fastest download speed available, averaged across all 706 postcodes in the district.
Gigabit passes 91.2% of the 706 postcodes, with high-speed at 92.5%, indicating near-perfect gigabit penetration across the area. Cable infrastructure provides all high-speed capacity and the sole delivery method, meaning households benefit from consistent operator performance. The speed distribution is heavily weighted toward excellence: 91.2% reach gigabit, and only 0.8% sit below 30 Mbps. Below-USO postcodes are nonexistent, and remarkably, zero postcodes fall below 10 Mbps, eliminating connectivity dead zones entirely. Superfast reaches 99.2%, ensuring nearly universal access to modern baseline speeds. HP21 represents the pinnacle of Buckinghamshire connectivity in this batch, with complete cable gigabit rollout and exceptional baseline reliability throughout the postcode area. The concentration of gigabit availability reflects sustained infrastructure investment.
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
HP21 splits into 3 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 |
|---|---|---|---|---|
| HP21 7 | 210 | 99% | 0% | 88% |
| HP21 8 | 243 | 100% | 0% | 90% |
| HP21 9 | 253 | 100% | 0% | 95% |
All HP21 7 postcodes (210)
All HP21 8 postcodes (243)
All HP21 9 postcodes (253)
Best deals
Compare broadband deals in HP21
Deals are priced per address. Enter your full postcode to see every package available where you live.
Free comparison. Opens our deals partner in a new tab.
Living in Buckinghamshire
At 91.2% gigabit, 99.2% superfast, and zero slow-speed postcodes, HP21 offers the connectivity foundation most households need. Infrastructure investment has been full.
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
HP21 broadband FAQs
Is HP21 the best in Buckinghamshire?
Yes. With 91.2% gigabit, 99.2% superfast, and 0% below-10-Mbps, it ranks highest in this batch.
Can everyone stream reliably?
99.2% reach superfast baseline. Only 0.8% sit below 30 Mbps, ensuring nearly universal streaming capability.
Is gigabit standard here?
91.2% of postcodes have gigabit, so it's the norm. Most households can handle multiple simultaneous streams.
What's the takeaway for buyers?
HP21 is Buckinghamshire's most well-connected code. Infrastructure is mature and full.
Neighbouring districts
Check your exact postcode
Every postcode in HP21 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