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HP11

Postcode district

Postcode district covering High Wycombe, Wycombe Marsh and Cressex, in Buckinghamshire.

Approximate outline worked out by Open Index from the ONS Postcode Directory: each census output area belongs to the district that holds most of its postcodes. People, homes, recorded crime and broadband add up those output areas. House sales count every sale with an HP11 postcode. How census figures are added up

Open in map

Radon Affected Area by postcode district

Worked out by Open Index · 2022

Under 1%90% or more

About 100% of people in HP11 live in a 1 km square that the radon atlas marks as a radon Affected Area.

Median sale price
£336,250
875th most expensive of 2,235
Worked out by Open Index
Population
17,463
1,137th least populated of 2,756
ONS Census 2021 · 2021
People in radon Affected Area squares
100%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
70.2%
UK 87.8%
Ofcom · Jan 2026

How HP11 compares

Each dot is a postcode district. The black line marks the middle one.

HP11Middle
Median sale price24 postcode districts, HP · 2025
Median sale price: every postcode district in HP24 areas from £295,000 to £990,000. The middle area is £481,938. HP11 is £336,250.
£336,2504th cheapest
Population24 postcode districts, HP · 2021
Population: every postcode district in HP24 areas from 6,767 to 45,502. The middle area is 18,862. HP11 is 17,463.
17,4638th least populated
People in radon Affected Area squares24 postcode districts, HP · 2022
People in radon Affected Area squares: every postcode district in HP24 areas from 9.0% to 100.0%. The middle area is 99.5%. HP11 is 100.0%.
100%joint most people in radon Affected Areas
Gigabit broadband coverage24 postcode districts, HP · Jan 2026
Gigabit broadband coverage: every postcode district in HP24 areas from 62.3% to 94.1%. The middle area is 80.9%. HP11 is 70.2%.
70.2%3rd lowest

Is HP11 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in HP11 at a rate of 168.8 per 1,000 people.

That compares with 71.4 per 1,000 people across the HP postcode area.

In August 2026 alone, 302 cases of crime and anti-social behaviour were recorded in HP11.

In the 12 months to August 2026, the most common types were violence and sexual offences (1,156), other crime (677) and shoplifting (601).

A year earlier, the recorded crime rate in HP11 was 180.1 per 1,000 people.

Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.

Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.

Deprivation in HP11, neighbourhood by neighbourhood

  • Deprivation is ranked by neighbourhood, so HP11 has no single figure. Of its 8 neighbourhoods with a rank:
  • Decile 2: 1 neighbourhood
  • Decile 4: 1 neighbourhood
  • Decile 5: 1 neighbourhood
  • Decile 6: 2 neighbourhoods
  • Decile 7: 2 neighbourhoods
  • Decile 8: 1 neighbourhood

English Indices of Deprivation 2025. Decile 1 is the most deprived tenth of neighbourhoods in England.

Neighbourhoods in HP11

NamePeople (census)Recorded crime per 1,000Deprivation decileGigabit broadband
Buckinghamshire 046C2,300142.6 per 1,000278.0%
Buckinghamshire 049B2,557366.1 per 1,000447.5%
Buckinghamshire 049D2,359376.2 per 1,000647.3%
Buckinghamshire 049F2,618117.5 per 1,000893.4%
Buckinghamshire 051B1,41156.0 per 1,000769.7%
Buckinghamshire 051C1,781116.8 per 1,000676.2%
Buckinghamshire 051E1,37872.9 per 1,000786.9%
Buckinghamshire 051F1,37998.5 per 1,000570.6%

Your MP

As of , from the UK Parliament Members API. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

Middle areas in HP112

Postcode sectors in HP113

Council1

Towns in HP112

Postcode districts next to HP114

Nearest rail stations3

More in the HP postcode area2

HP11 in brief

HP11 is a postcode district covering High Wycombe, Wycombe Marsh and Cressex, in Buckinghamshire.

About 20,148 people lived in HP11 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £336,250 in 2025 across 226 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 168.8 per 1,000 people in the 12 months to August 2026 (police.uk).

The median price paid for a home in HP11 was £336,250 in 2025.

HP11 had 17,463 usual residents at the census.

About 100% of people in HP11 live in a 1 km square that the radon atlas marks as a radon Affected Area.

In HP11, 70.2% of homes and businesses could get gigabit-capable broadband in January 2026.