# HP1

Postcode district covering Hemel Hempstead, Warners End and Gadebridge, in Dacorum.

HP1 is a postcode district covering Hemel Hempstead, Warners End and Gadebridge, in Dacorum. Median sale price £420,000 in 2025.

Postcode district. Code HP1. In: [Postcodes](https://openindex.co.uk/postcode) › [HP](https://openindex.co.uk/postcode/hp)

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 HP1 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £420,000** (2025). The median price paid for a home in HP1 was £420,000 in 2025. Joint 525th most expensive of 2,235. Source: Worked out by Open Index from HM Land Registry Price Paid Data. Published 28 September 2026. https://openindex.co.uk/postcode/hp1#f-house-sales-median-price
- **Population: 26,373** (2021). HP1 had 26,373 usual residents at the census (ONS Census 2021). 1,106th most populated of 2,756. Source: Census 2021, England and Wales and Scotland's Census 2022 and Census 2021, Northern Ireland, 2021. Published 21 July 2026. https://openindex.co.uk/postcode/hp1#f-population
- **People in radon Affected Area squares: 100%** (2022). About 100% of people in HP1 live in a 1 km square that the radon atlas marks as a radon Affected Area. UK 44%. Source: Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas. Published 1 December 2022. https://openindex.co.uk/postcode/hp1#f-radon-affected-share
- **Gigabit broadband coverage: 94.1%** (January 2026). In HP1, 94.1% of homes and businesses could get gigabit-capable broadband in January 2026 (Ofcom). UK 87.8%. Source: Connected Nations (Ofcom), January 2026. Published 13 May 2026. https://openindex.co.uk/postcode/hp1#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=HP1) (Worked out by Open Index · 2022): About 100% of people in HP1 live in a 1 km square that the radon atlas marks as a radon Affected Area.
- [Sales per year by postcode district](https://openindex.co.uk/map/house-sales-per-year?place=HP1) (Worked out by Open Index · 2025): 378 homes were sold in HP1 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=HP1) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for HP1.
- [Population by postcode district](https://openindex.co.uk/map/population?place=HP1) (Census 2021, England and Wales): HP1 had 26,373 usual residents at the census.

## How HP1 compares

Each postcode district against every other postcode district the measure covers.

| Measure | HP1 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £420,000 | 9th cheapest | 24 postcode districts, HP · 2025 |
| Population | 26,373 | 8th most populated | 24 postcode districts, HP · 2021 |
| People in radon Affected Area squares | 100% | joint most people in radon Affected Areas | 24 postcode districts, HP · 2022 |
| Gigabit broadband coverage | 94.1% | highest | 24 postcode districts, HP · Jan 2026 |

## Is HP1 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in HP1 at a rate of 121.7 per 1,000 people.
That compares with 71.4 per 1,000 people across the HP postcode area.
In August 2026 alone, 296 cases of crime and anti-social behaviour were recorded in HP1.
In the 12 months to August 2026, the most common types were violence and sexual offences (1,098), anti-social behaviour (866) and other crime (476).
A year earlier, the recorded crime rate in HP1 was 129.1 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 HP1, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so HP1 has no single figure. Of its 15 neighbourhoods with a rank:
- Decile 4: 2 neighbourhoods
- Decile 5: 4 neighbourhoods
- Decile 7: 3 neighbourhoods
- Decile 8: 3 neighbourhoods
- Decile 10 (England’s least deprived 10%): 3 neighbourhoods

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

## Neighbourhoods in HP1

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Dacorum 010A](https://openindex.co.uk/dacorum/neighbourhood/e01023390) | 2,123 | 79.2 per 1,000 | 5 | 99.0% |
| [Dacorum 010B](https://openindex.co.uk/dacorum/neighbourhood/e01023391) | 1,721 | 49.0 per 1,000 | 7 | 98.3% |
| [Dacorum 011A](https://openindex.co.uk/dacorum/neighbourhood/e01023392) | 1,657 | 118.6 per 1,000 | 4 | 97.8% |
| [Dacorum 011B](https://openindex.co.uk/dacorum/neighbourhood/e01023427) | 1,806 | 95.4 per 1,000 | 5 | 99.7% |
| [Dacorum 011C](https://openindex.co.uk/dacorum/neighbourhood/e01023428) | 1,455 | 58.0 per 1,000 | 8 | 98.9% |
| [Dacorum 011D](https://openindex.co.uk/dacorum/neighbourhood/e01023429) | 1,853 | 140.5 per 1,000 | 5 | 92.0% |
| [Dacorum 015F](https://openindex.co.uk/dacorum/neighbourhood/e01035562) | 1,522 | 519.3 per 1,000 | 4 | 85.3% |
| [Dacorum 015H](https://openindex.co.uk/dacorum/neighbourhood/e01035564) | 1,195 | 54.1 per 1,000 | 8 | 97.9% |
| [Dacorum 016A](https://openindex.co.uk/dacorum/neighbourhood/e01023383) | 1,481 | 35.9 per 1,000 | 7 | 97.8% |
| [Dacorum 016B](https://openindex.co.uk/dacorum/neighbourhood/e01023384) | 1,962 | 73.3 per 1,000 | 5 | 99.8% |
| [Dacorum 016C](https://openindex.co.uk/dacorum/neighbourhood/e01023385) | 1,581 | 49.6 per 1,000 | 7 | 100.0% |
| [Dacorum 018C](https://openindex.co.uk/dacorum/neighbourhood/e01023379) | 1,626 | 48.1 per 1,000 | 10 | 99.2% |
| [Dacorum 018D](https://openindex.co.uk/dacorum/neighbourhood/e01023380) | 1,170 | 32.2 per 1,000 | 10 | 99.8% |
| [Dacorum 018E](https://openindex.co.uk/dacorum/neighbourhood/e01023381) | 1,368 | 39.8 per 1,000 | 10 | 99.3% |
| [Dacorum 018F](https://openindex.co.uk/dacorum/neighbourhood/e01023382) | 1,537 | 45.7 per 1,000 | 8 | 87.8% |

## Your MP

- [Hemel Hempstead](https://openindex.co.uk/constituency/hemel-hempstead): David Taylor (Labour), MP since July 2024. 96% of the people here.
- [Harpenden and Berkhamsted](https://openindex.co.uk/constituency/harpenden-and-berkhamsted): Victoria Collins (Liberal Democrat), MP since July 2024. 3.7% of the people here.

As of 18 October 2026. Contains Parliamentary information licensed under the Open Parliament Licence v3.0. Source: UK Parliament, Members API.

## Middle areas in HP1

[Boxmoor & Apsley](https://openindex.co.uk/dacorum/boxmoor-and-apsley), [Chaulden](https://openindex.co.uk/dacorum/chaulden), [Gadebridge & Old Town](https://openindex.co.uk/dacorum/gadebridge-and-old-town), [Warners End](https://openindex.co.uk/dacorum/warners-end)

## Postcode sectors in HP1

[HP1 1 (234 postcodes)](https://openindex.co.uk/postcode/hp1-1), [HP1 2 (207 postcodes)](https://openindex.co.uk/postcode/hp1-2), [HP1 3 (200 postcodes)](https://openindex.co.uk/postcode/hp1-3), [HP1 9 (40 postcodes)](https://openindex.co.uk/postcode/hp1-9)

## Council

[Dacorum](https://openindex.co.uk/dacorum)

## Towns in HP1

[Hemel Hempstead](https://openindex.co.uk/town/hemel-hempstead)

## Postcode districts next to HP1

[HP2](https://openindex.co.uk/postcode/hp2), [HP3](https://openindex.co.uk/postcode/hp3), [HP4](https://openindex.co.uk/postcode/hp4), [LU6](https://openindex.co.uk/postcode/lu6)

## Nearest rail stations

[Hemel Hempstead (1.7 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.4908,51.7423), [Apsley (3.5 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.4629,51.7325), [Berkhamsted (4.7 km from the middle)](https://openindex.co.uk/map/rail-stations?around=-0.5620,51.7631)

## More in the HP postcode area

[All HP postcode districts](https://openindex.co.uk/postcode/hp), [Every UK postcode area](https://openindex.co.uk/postcode)

## HP1 in brief

HP1 is a postcode district covering Hemel Hempstead, Warners End and Gadebridge, in Dacorum.
About 27,429 people lived in HP1 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £420,000 in 2025 across 378 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 121.7 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in HP1 was £420,000 in 2025.
HP1 had 26,373 usual residents at the census.
About 100% of people in HP1 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In HP1, 94.1% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: HP1
- Postcode area: [HP](https://openindex.co.uk/postcode/hp)
- Constituency: [Hemel Hempstead †](https://openindex.co.uk/constituency/hemel-hempstead)
- Council: [Dacorum †](https://openindex.co.uk/dacorum)
- Area: 17.66 km²
- People, mid-2024: 27,429*
- Neighbourhoods: 15
- Output areas: 85

* People: worked out by Open Index from neighbourhood estimates, shared out by where people lived at the census (by area in Northern Ireland). This area's edges do not follow neighbourhood edges, so the figure is close but not exact.
† Best fit: the constituency, council, region and nation this postcode district mostly lies in. Its edges do not follow theirs.

## Next door

[HP2](https://openindex.co.uk/postcode/hp2), [HP4](https://openindex.co.uk/postcode/hp4), [HP3](https://openindex.co.uk/postcode/hp3), [LU6](https://openindex.co.uk/postcode/lu6)

## Latest updates for HP1

- August 2026 house prices published: HM Land Registry and partners · Oct 2026.
- September 2026 rent published: ONS private rents · Oct 2026.
- Dental practices updated: NHS England · Oct 2026.
- Schools updated: Ofsted · Oct 2026.

The same figures as JSON: https://openindex.co.uk/v1/places/HP1

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/hp1, or to one figure with its anchor, https://openindex.co.uk/postcode/hp1#f-house-sales-median-price.

Open Index's own text and the figures it works out are licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source data keeps its publishers' licences, named with each figure. Give each figure's period and source with it.

Snapshot 2026.10.9. The HTML page: https://openindex.co.uk/postcode/hp1