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St. Albans (AL4)

The AL4 postcode area is located in the St. Albans postcode town region, within the county of Hertfordshire, and contains a total of 1046 individual postcodes.

There are 36 electoral wards in the AL4 postcode area, including Harpenden, Hatfield, St Albans, Welwyn, Welwyn Garden City which come under the local authority of the St Albans Council.

Combining the whole postcode region, 40% of people in AL4 are classed as having an AB social grade, (i.e. 'white-collar' middle-upper class), compared to 27% across the UK.

This does not mean that the people of AL4 are wealthier - or higher class - than average, but it can be an indication that the area may be prospering and desirable to live in.

The AL4 postcode is part of the St Albans district, a district in the county of Hertfordshire, England. The postcode area is just north of Watford and covers the historic market towns of St Albans, Harpenden, Redbourn and Wheathampstead, and more rural areas such as Sandridge and Colney Heath.

The AL4 postcode covers a population of nearly 90,000, across both urban and rural areas. It has a total area of 35.5 square miles.

The main towns in the AL4 postcode are St Albans City Centre, Harpenden, Redbourn, and Wheathampstead. St Albans City Centre is the historic, vibrant heart of the district, situated on the River Ver, it is known for its vibrant nightlife, its art galleries, its cathedrals and its large park. Harpenden is a vibrant, bustling town well-regarded for its charitable work, great quality of life, and plentiful amenities, such as a shopping centre and a leisure centre. Redbourn and Wheathampstead are two rural villages, each containing many thatched cottages and a local pub, and with much of their economy based on agriculture.

The postcode is well connected thanks to the Watford branch line which runs through the entire postcode, connecting St Albans to Watford, and beyond. There are also three main roads that run through the postcode, the M1, the M25 and the A414.

The area is popular with commuters, as it is only a short journey to London by train. It is also home to the University of Hertfordshire, the Institute of Cancer Research, and Kingsbury Mill. There are many green spaces with woods, parks and footpaths, and reservoirs at Sandridge, including the Hungerford Reservoir and Nettleden Reservoir. The district enjoys a range of leisure and cultural activities, such as theatre, music, art, galleries and open-air concerts. There is plenty of opportunity to participate in fitness activities, with a range of community sports clubs, such as rugby and football.

Schools in the area are generally well regarded and enjoy good exam results. There are several independent schools, as well as state and faith schools.

TheAL4 postcode area offers its residents a great quality of life, with an interesting variety of historic and modern attractions, a good range of amenities and leisure activities, and excellent transport links.

Postcode Disclaimer notice



  • 88%WORKING

12% of people in AL4 are either unemployed or full time students. The average UK unemployment rate is currently 4%.


  • 40%AB
  • 45%C2/C2
  • 15%DE

According to census records, 40% of people here have a social grade of AB (highest), compared to the national average of 27%.


  • 82%WHITE
  • 18%NON-WHITE

82% of people class themselves as 'white', compared to a national UK average of 81.9%.

AL Postcode Wall Map


The county of Hertfordshire

AL4 is located in the county of Hertfordshire, in England.

Hertfordshire has a total population of 1,176,700, making it the 12th largest county in the UK.

Hertfordshire has a total area of 634 square miles, and a population density of 716 people per square kilometre. For comparison, Greater London has a density of 5,618 people/km2.

Hertfordshire Postal Town Map
Outward CodeAL4
Postal TownSt. Albans
MSOA NameSt Albans 016
LSOA NameSt Albans 016A
Local AuthoritySt Albans
Area ClassificationUnclassified

AL4 Electoral Wards

The postal region of AL4, includes the local towns, villages, electoral wards and stations of:

Ayot Green
Ayot St Lawrence
Ayot St Peter
Blackmore End
Bullen's Green
Codicote Bottom
Coleman Green
Colney Heath
Cooper's Green
Gustard Wood
Hatfield Garden Village
Lea (Lee)
Leasey Bridge
Lee (Lea)
London Colney
Marshalls Heath
Nast Hyde
Porter's End
The Camp
The Folly
Browse Postcodes in AL4

Dig even deeper into the AL4 postcode by clicking on a postcode below:

Click on an outward postal code below for more information about the area. Each 'outward' postcode give you a comprehensive list of all postcodes within the outward code area (AL) and estimated address.

Click on an 'outward' code for more information. For example, the outward postcode page 'EC2M' will give you an alphabetical list covering all postcodes located in the region, from 'EC2M 1BB' through to 'EC2M 7YA'.

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Chris H

Tuesday, May 28, 2024

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