# AL3

Postcode district covering St Albans, Redbourn and Townsend, in St Albans and Dacorum.

AL3 is a postcode district covering St Albans, Redbourn and Townsend, in St Albans and Dacorum. Median sale price £634,000 in 2025.

Postcode district. Code AL3. In: [Postcodes](https://openindex.co.uk/postcode) › [AL](https://openindex.co.uk/postcode/al)

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 AL3 postcode. [How census figures are added up](https://openindex.co.uk/sources/population)

## Key figures

- **Median sale price: £634,000** (2025). The median price paid for a home in AL3 was £634,000 in 2025. 122nd 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/al3#f-house-sales-median-price
- **Population: 29,505** (2021). AL3 had 29,505 usual residents at the census (ONS Census 2021). 948th 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/al3#f-population
- **People in radon Affected Area squares: 100%** (2022). About 100% of people in AL3 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/al3#f-radon-affected-share
- **Gigabit broadband coverage: 89.1%** (January 2026). In AL3, 89.1% 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/al3#f-gigabit-coverage

## On the map

- [Radon Affected Area by postcode district](https://openindex.co.uk/map/radon-affected-areas?place=AL3) (Worked out by Open Index · 2022): About 100% of people in AL3 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=AL3) (Worked out by Open Index · 2025): 406 homes were sold in AL3 in 2025.
- [Crime and ASB by postcode district](https://openindex.co.uk/map/recorded-crime?place=AL3) (Police recorded crime and outcomes (data.police.uk) · August 2026): Crime and anti-social behaviour for AL3.
- [Population by postcode district](https://openindex.co.uk/map/population?place=AL3) (Census 2021, England and Wales): AL3 had 29,505 usual residents at the census.

## How AL3 compares

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

| Measure | AL3 | Rank | Compared with |
| --- | --- | --- | --- |
| Median sale price | £634,000 | 4th most expensive | 10 postcode districts, AL · 2025 |
| Population | 29,505 | 5th most populated | 10 postcode districts, AL · 2021 |
| People in radon Affected Area squares | 100% | joint most people in radon Affected Areas | 10 postcode districts, AL · 2022 |
| Gigabit broadband coverage | 89.1% | 4th lowest | 10 postcode districts, AL · Jan 2026 |

## Is AL3 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in AL3 at a rate of 74.3 per 1,000 people.
That compares with 87.3 per 1,000 people across the AL postcode area.
In August 2026 alone, 170 cases of crime and anti-social behaviour were recorded in AL3.
In the 12 months to August 2026, the most common types were violence and sexual offences (747), anti-social behaviour (479) and other crime (386).
A year earlier, the recorded crime rate in AL3 was 82.9 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 AL3, neighbourhood by neighbourhood

- Deprivation is ranked by neighbourhood, so AL3 has no single figure. Of its 17 neighbourhoods with a rank:
- Decile 4: 1 neighbourhood
- Decile 5: 1 neighbourhood
- Decile 6: 3 neighbourhoods
- Decile 8: 4 neighbourhoods
- Decile 9: 4 neighbourhoods
- Decile 10 (England’s least deprived 10%): 4 neighbourhoods

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

## Neighbourhoods in AL3

| Area | People (census) | Recorded crime per 1,000 | Deprivation decile | Gigabit broadband |
| --- | --- | --- | --- | --- |
| [Dacorum 001A](https://openindex.co.uk/dacorum/neighbourhood/e01023430) | 1,264 | 124.7 per 1,000 | 8 | 47.0% |
| [Dacorum 001C](https://openindex.co.uk/dacorum/neighbourhood/e01023432) | 1,664 | 77.0 per 1,000 | 8 | 57.8% |
| [Dacorum 001D](https://openindex.co.uk/dacorum/neighbourhood/e01023433) | 1,512 | 57.9 per 1,000 | 6 | 82.8% |
| [St Albans 006A](https://openindex.co.uk/st-albans/neighbourhood/e01023722) | 1,458 | 105.3 per 1,000 | 6 | 79.4% |
| [St Albans 006B](https://openindex.co.uk/st-albans/neighbourhood/e01023723) | 1,741 | 67.8 per 1,000 | 5 | 99.0% |
| [St Albans 006C](https://openindex.co.uk/st-albans/neighbourhood/e01023724) | 1,658 | 61.5 per 1,000 | 9 | 88.5% |
| [St Albans 006D](https://openindex.co.uk/st-albans/neighbourhood/e01023725) | 1,544 | 40.3 per 1,000 | 10 | 83.9% |
| [St Albans 007A](https://openindex.co.uk/st-albans/neighbourhood/e01023713) | 2,059 | 64.9 per 1,000 | 9 | 89.2% |
| [St Albans 009A](https://openindex.co.uk/st-albans/neighbourhood/e01023669) | 1,778 | 63.9 per 1,000 | 4 | 98.4% |
| [St Albans 009B](https://openindex.co.uk/st-albans/neighbourhood/e01023670) | 2,103 | 54.4 per 1,000 | 9 | 97.2% |
| [St Albans 009C](https://openindex.co.uk/st-albans/neighbourhood/e01023671) | 1,948 | 82.9 per 1,000 | 6 | 97.3% |
| [St Albans 009D](https://openindex.co.uk/st-albans/neighbourhood/e01023672) | 1,916 | 64.0 per 1,000 | 8 | 99.9% |
| [St Albans 012C](https://openindex.co.uk/st-albans/neighbourhood/e01023728) | 2,210 | 90.9 per 1,000 | 8 | 95.1% |
| [St Albans 014A](https://openindex.co.uk/st-albans/neighbourhood/e01023742) | 1,910 | 45.2 per 1,000 | 10 | 97.3% |
| [St Albans 014B](https://openindex.co.uk/st-albans/neighbourhood/e01023743) | 2,017 | 139.7 per 1,000 | 10 | 83.8% |
| [St Albans 014C](https://openindex.co.uk/st-albans/neighbourhood/e01023744) | 1,565 | 40.1 per 1,000 | 10 | 96.6% |
| [St Albans 014D](https://openindex.co.uk/st-albans/neighbourhood/e01023745) | 1,800 | 48.0 per 1,000 | 9 | 99.8% |

## Your MP

- [St Albans](https://openindex.co.uk/constituency/st-albans): Daisy Cooper (Liberal Democrat), MP since July 2024. 56% of the people here.
- [Harpenden and Berkhamsted](https://openindex.co.uk/constituency/harpenden-and-berkhamsted): Victoria Collins (Liberal Democrat), MP since July 2024. 44% of the people here.
- [Luton South and South Bedfordshire](https://openindex.co.uk/constituency/luton-south-and-south-bedfordshire): Rachel Hopkins (Labour), MP since July 2024. 0.1% 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 AL3

[Markyate, Flamstead & Gaddesden](https://openindex.co.uk/dacorum/markyate-flamstead-and-gaddesden), [Redbourn](https://openindex.co.uk/st-albans/redbourn), [Townsend & New Greens](https://openindex.co.uk/st-albans/townsend-and-new-greens), [Verulam Park](https://openindex.co.uk/st-albans/verulam-park)

## Postcode sectors in AL3

[AL3 4 (186 postcodes)](https://openindex.co.uk/postcode/al3-4), [AL3 5 (232 postcodes)](https://openindex.co.uk/postcode/al3-5), [AL3 6 (162 postcodes)](https://openindex.co.uk/postcode/al3-6), [AL3 7 (184 postcodes)](https://openindex.co.uk/postcode/al3-7), [AL3 8 (191 postcodes)](https://openindex.co.uk/postcode/al3-8)

## Councils AL3 covers

[St Albans](https://openindex.co.uk/st-albans), [Dacorum](https://openindex.co.uk/dacorum)

## Towns in AL3

[St Albans](https://openindex.co.uk/town/st-albans)

## Postcode districts next to AL3

[AL1](https://openindex.co.uk/postcode/al1), [AL2](https://openindex.co.uk/postcode/al2), [AL4](https://openindex.co.uk/postcode/al4), [AL5](https://openindex.co.uk/postcode/al5), [HP2](https://openindex.co.uk/postcode/hp2), [LU1](https://openindex.co.uk/postcode/lu1), [LU6](https://openindex.co.uk/postcode/lu6)

## More in the AL postcode area

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

## AL3 in brief

AL3 is a postcode district covering St Albans, Redbourn and Townsend, in St Albans and Dacorum.
About 29,549 people lived in AL3 in mid-2024 (worked out by Open Index from ONS small-area estimates); the median price paid for a home was £634,000 in 2025 across 406 sales (HM Land Registry) and police recorded crimes and anti-social behaviour at a rate of 74.3 per 1,000 people in the 12 months to August 2026 (police.uk).
The median price paid for a home in AL3 was £634,000 in 2025.
AL3 had 29,505 usual residents at the census.
About 100% of people in AL3 live in a 1 km square that the radon atlas marks as a radon Affected Area.
In AL3, 89.1% of homes and businesses could get gigabit-capable broadband in January 2026.

## About

- Type: Postcode district
- Code: AL3
- Postcode area: [AL](https://openindex.co.uk/postcode/al)
- Constituency: [St Albans †](https://openindex.co.uk/constituency/st-albans)
- Council: [St Albans †](https://openindex.co.uk/st-albans)
- Area: 67.92 km²
- People, mid-2024: 29,549*
- Neighbourhoods: 17
- Output areas: 88

* 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

[AL5](https://openindex.co.uk/postcode/al5), [AL2](https://openindex.co.uk/postcode/al2), [HP2](https://openindex.co.uk/postcode/hp2), [AL1](https://openindex.co.uk/postcode/al1), [LU1](https://openindex.co.uk/postcode/lu1), [LU6](https://openindex.co.uk/postcode/lu6)

## Latest updates for AL3

- 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/AL3

## How to cite

Source: Open Index, openindex.co.uk. Link to this page, https://openindex.co.uk/postcode/al3, or to one figure with its anchor, https://openindex.co.uk/postcode/al3#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/al3