PO5 broadband and area guide
Ofcom coverage, connection speeds, house prices and local data for 651 postcodes across 4 sectors in Portsmouth.
Full fibre
0%
Gigabit
91%
Superfast
98%
Postcodes
651
Portsmouth's PO5 completes the city core: 90.7% gigabit across 651 postcodes, with 98.2% superfast. Urban cable density is evident.
Broadband speeds in PO5
Share of PO5 premises by the fastest download speed available, averaged across all 651 postcodes in the district.
PO5 delivers strong gigabit (90.7%) and near-universal superfast (98.2%), consistent with Portsmouth's best urban postcodes. The speed distribution shows 92.9% at 300 Mbps-plus, 5.3% at 30-300 Mbps, and 0.9% below 10 Mbps. Cable clustering creates multiple competitive markets; residents have provider choice and switching flexibility rather than availability constraints. The postcode's 0.9% sub-10 Mbps is slightly elevated compared to Portsmouth's ultra-dense central codes but still negligible at nearly 1 per 1000. Switching decisions centre on price, service quality, and contract terms rather than access limitations. Urban density creates market maturity and competitive pricing pressure from providers.
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
PO5 splits into 4 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 |
|---|---|---|---|---|
| PO5 1 | 149 | 100% | 0% | 98% |
| PO5 2 | 207 | 100% | 0% | 95% |
| PO5 3 | 153 | 93% | 0% | 77% |
| PO5 4 | 142 | 100% | 0% | 92% |
All PO5 1 postcodes (149)
All PO5 2 postcodes (207)
All PO5 3 postcodes (153)
All PO5 4 postcodes (142)
Best deals
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Living in Portsmouth
Portsmouth urban postcode with mature cable markets and reliable gigabit.
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
PO5 broadband FAQs
Is gigabit widely available in PO5?
Yes. 90.7% of postcodes are gigabit-capable.
What is the typical speed profile?
92.9% of postcodes reach 300 Mbps or faster; only 5.3% sit at 30-300 Mbps.
Are there any slow-speed postcodes?
Only 0.9% fall below 10 Mbps, and all sit at or above superfast.
Should broadband factor into a property decision?
No. Focus instead on provider options and pricing.
Neighbouring districts
Check your exact postcode
Every postcode in PO5 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