PO21 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 1,334 postcodes across 5 sectors in Arun.
Full fibre
0%
Gigabit
67%
Superfast
99%
Postcodes
1,334
PO21 in Arun reaches 1,334 postcodes, the largest in this batch, with 67.1% gigabit access and zero sub-10 Mbps premises. Infrastructure is strong.
Broadband speeds in PO21
Share of PO21 premises by the fastest download speed available, averaged across all 1,334 postcodes in the district.
Gigabit speeds are available to 67.1% of the 1,334 postcodes. No premises fall below 10 Mbps, and only zero remain below superfast entirely. Superfast coverage of 99.2% is near-perfect. The speed split shows gigabit dominance (67.1% at 300+), a secondary tier (32.1% at 30-300 Mbps), and negligible vulnerability. Arun's largest district benefits from sustained cable investment. The postcode caters to diverse households: gigabit for data-intensive users, solid 30-300 Mbps for standard broadband. Infrastructure maturity is evident in the zero tail of poor connectivity.
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
PO21 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 |
|---|---|---|---|---|
| PO21 1 | 256 | 99% | 0% | 65% |
| PO21 2 | 265 | 100% | 0% | 85% |
| PO21 3 | 274 | 100% | 0% | 62% |
| PO21 4 | 268 | 97% | 0% | 28% |
| PO21 5 | 271 | 100% | 0% | 96% |
All PO21 1 postcodes (256)
All PO21 2 postcodes (265)
All PO21 3 postcodes (274)
All PO21 4 postcodes (268)
All PO21 5 postcodes (271)
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Living in Arun
PO21 is Arun's strongest district for connectivity, combining scale with reliable gigabit options and zero slow-speed risk.
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
PO21 broadband FAQs
What is the main broadband profile in PO21?
67.1% of postcodes can access gigabit-capable networks; 32.1% occupy the 30-300 Mbps band. No slow-speed problem exists.
If gigabit is unavailable, what are the alternatives?
Almost all remaining postcodes sit in the 30-300 Mbps tier, which handles streaming, video calls, and most household tasks.
Are there postcodes in PO21 that struggle with poor broadband?
No. Zero postcodes fall below 10 Mbps, and only zero sit outside superfast standards.
How does PO21's connectivity compare to the Arun average?
67.1% gigabit is above Arun's typical range, reflecting this postcode's infrastructure priority.
Neighbouring districts
Check your exact postcode
Every postcode in PO21 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