HP4 postcode area guide — Buckinghamshire

Where is HP4?

Broadband & internet speeds in HP4

Strong coverage

Broadband availability in the HP4 postcode district (Buckinghamshire) is Strong — superfast is near-universal and gigabit is rolling out. Across the 729 postcodes Ofcom measures in HP4, superfast broadband (30 Mbit/s or faster) reaches 95.5% of premises and gigabit-capable lines are available to 53.7%.

Around 0.5% of premises in HP4 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 HP4

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

Mobile signal around Buckinghamshire

Ofcom's coverage model for the wider Buckinghamshire district (250,700 premises):

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

Crime in HP4

Police recorded 111 incidents within about a mile of the centre of HP4 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 HP4

Based on 277 sales registered with HM Land Registry in the last 12 months, the median sold price in HP4 is £675,000, up 8.0% on the previous year (£625,000).

Latest recorded sales in HP4

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

Who lives here? Buckinghamshire demographics

Census 2021 figures for the wider Buckinghamshire district (553,079 residents, 220,327 households):

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

Schools in and around HP4

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 HP4

185 rated food businesses operate in HP4. 132 hold the top rating of 5, 31 are rated 4, and none are currently rated 2 or below.

Among the 5-rated: 360 Wraparound, Annett House, Asda Express PFS Hall Park, Ashlyns Care Home, Ashridge Business School and Bakehouse Cafe.

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

Energy performance (EPC) in HP4

From a sample of 167 Energy Performance Certificates across 10 HP4 postcodes, the most common rating is band D (average band D). 40% 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 Buckinghamshire

Landlines around HP4 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 HP4?

Postcodes in HP4

Neighbouring districts

All Hemel Hempstead (HP) 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.