PO3 postcode area guide — Portsmouth

Where is PO3?

Broadband & internet speeds in PO3

Excellent coverage

Broadband availability in the PO3 postcode district (Portsmouth) is Excellent — gigabit-capable full fibre is widely available. Across the 437 postcodes Ofcom measures in PO3, superfast broadband (30 Mbit/s or faster) reaches 94.5% of premises and gigabit-capable lines are available to 91.9%.

Around 0% of premises in PO3 fall below the Universal Service Obligation (a minimum of 10 Mbit/s download and 1 Mbit/s upload), so the overwhelming majority of homes and businesses here can already order a decent fixed line. For a business that depends on its connection, the figures that matter most are gigabit and full-fibre availability — the symmetric, low-contention services we quote leased lines and FTTP against.

Sample postcodes in PO3

Run a speed test to see what you're actually getting, or check your exact postcode.

Mobile signal around Portsmouth

Ofcom's coverage model for the wider Portsmouth district (95,670 premises):

Signal varies street by street — use the mobile coverage checker to compare EE, O2, Three and Vodafone at an exact postcode.

Crime in PO3

Police recorded 415 incidents within about a mile of the centre of PO3 in May 2026 (latest published street-level data). The breakdown:

Raw counts favour busy town centres — a high street with shops and nightlife records more incidents than a residential cul-de-sac. Source: police.uk open data (point sample around the district centroid).

House prices in PO3

Based on 250 sales registered with HM Land Registry in the last 12 months, the median sold price in PO3 is £275,000, up 1.9% on the previous year (£270,000).

Latest recorded sales in PO3

Contains HM Land Registry data © Crown copyright and database right 2026, licensed under the Open Government Licence v3.0.

Who lives here? Portsmouth demographics

Census 2021 figures for the wider Portsmouth district (208,003 residents, 86,155 households):

Source: ONS Census 2021 (district level — the finest openly licensed cut we republish). © Crown copyright, OGL v3.0.

Schools in and around PO3

Source: DfE Get Information about Schools (England & Wales). Check Ofsted report cards for inspection detail — headline one-word grades were retired in 2024.

Food hygiene ratings in PO3

140 rated food businesses operate in PO3. 85 hold the top rating of 5, 22 are rated 4, and 4 are rated 2 or below.

Among the 5-rated: B & M Portsmouth Ocean Retail Park (665), BAE - Broad Oak, Baffins Inn, Baffins Pond Association, BaxterStorey @ Airbus Portsmouth - Horizon.

Source: Food Standards Agency, food hygiene ratings (FHRS) open data.

Energy performance (EPC) in PO3

From a sample of 246 Energy Performance Certificates across 8 PO3 postcodes, the most common rating is band D (average band D). 36% of sampled homes are rated C or better.

Source: MHCLG Energy Performance of Buildings Data (England & Wales), sampled at postcode level and refreshed monthly. Individual certificates are on each postcode’s page.

Phone area codes for Portsmouth

Landlines around PO3 typically use:

Had a call from an unknown number? Use our free UK phone number checker to see who called.

What's it like living in PO3?

Postcodes in PO3

Neighbouring districts

All Portsmouth (PO) postcode districts ›

Frequently asked questions

Sources: HM Land Registry Price Paid Data, police.uk street-level crime, Ofcom Connected Nations, ONS Census 2021, DfE Get Information about Schools, Food Standards Agency FHRS — all © Crown copyright, licensed under the Open Government Licence v3.0. Figures are area aggregates; individual addresses vary. Energy performance (EPC) data will be added when our Open Data Communities registration is approved.