AL3 postcode area · St Albans
The AL3 postcode district spans 11 neighbourhoods (MSOAs) in Central Bedfordshire, Dacorum, St Albans. Area Scores range from 61 to 99 across them. Every full AL3 postcode falls within one of the neighbourhoods below.
In summary
The strongest of the AL3 district's neighbourhoods is Harpenden Common (100 out of 100, #12 of 6,856 in England) and the weakest Caddington & Slip End (62). 9 of the 11 rank in the least-deprived third of England; none falls in the most-deprived third. House prices stretch as far as the scores do: medians run from £440,000 in Caddington & Slip End to £800,000 in Harpenden Common — a 1.8× gap within the AL3 district. Note that the district straddles 3 local authorities — Central Bedfordshire, Dacorum and St Albans — so its neighbourhoods answer to different councils.
Living here
Income: ONS model-based estimates (FYE 2023). Crime: data.police.uk, recorded incidents. Age & tenure: Census 2021. All OGL v3.0 — methodology.
House prices in the AL3 district
| Neighbourhood | Nat. rank | Area score | Median price |
|---|---|---|---|
| Harpenden CommonSt Albans | 12 | 100 | £800,000 |
| Bernards HeathSt Albans | 12 | 100 | £780,000 |
| Verulam ParkSt Albans | 73 | 99 | £743,000 |
| LongacresSt Albans | 87 | 99 | £625,500 |
| Jersey Farm & SandridgeSt Albans | 396 | 94 | £510,000 |
| WheathampsteadSt Albans | 704 | 90 | £666,250 |
| St Albans CentralSt Albans | 1,314 | 81 | £463,000 |
| RedbournSt Albans | 1,719 | 75 | £625,000 |
| Markyate, Flamstead & GaddesdenDacorum | 2,164 | 68 | £480,000 |
| Townsend & New GreensSt Albans | 2,473 | 64 | £670,500 |
| Caddington & Slip EndCentral Bedfordshire | 2,630 | 62 | £440,000 |
People living in AL3 Census 2021
Age
Tenure
Households
Work (top occupations)
Professional 30% · Managers & directors 21% · Associate professional 16%
All occupation groups
| Professional | 30% |
| Managers & directors | 21% |
| Associate professional | 16% |
| Administrative | 8% |
| Skilled trades | 6% |
| Caring & leisure | 6% |
| Elementary | 5% |
| Sales & customer service | 4% |
| Process & plant | 3% |
Ethnic group
Religion & identity
Christian 48% · No religion 39% · Muslim 3%
Born outside the UK: 15%
Census 2021 (ONS), Crown copyright, OGL v3.0. Shares are of each question's own respondents (e.g. education is % of residents aged 16+). Figures date from March 2021 and change slowly between censuses.
Towns & places in AL3
Places whose neighbourhoods overlap the AL3 district.
Nearby areas
Postcode districts around AL3.
A postcode district overlaps several neighbourhoods, so per-neighbourhood figures are shown alongside the district-wide medians — neighbouring areas can differ a lot. Neighbourhood (MSOA) boundaries contain ONS data © Crown copyright and database right 2025, Open Government Licence v3.0.