St Albans
22 postcode sectors mapped mainly to St Albans. Choose a district or browse the guides below. These are postcode sectors, not named neighbourhood boundaries.
Postcode districts
Area guides
22 sectors
- AL1 1Near St Albans
- AL1 2Near St Stephens
- AL1 3Near St Albans
- AL1 4Near St Albans
- AL1 5Near St Albans
- AL1 9Near St Albans
- AL2 1Near London Colney
- AL2 2Near Bricket Wood
- AL2 3Near Bricket Wood
- AL3 4Near St Stephens
- AL3 5Near Townsend
- AL3 6Near St Michael
- AL3 7Near Redbourn
- AL4 0Near Colney Heath
- AL4 8Near Wheathampstead
- AL4 9Near Sandridge
- AL5 1Near Hatching Green
- AL5 2Near Harpenden Rural
- AL5 3Near Hatching Green
- AL5 4Near Hatching Green
- AL5 5Near Hatching Green
- AL5 9Near St Albans
Authority grouping uses mapped sector boundaries from the Office for National Statistics, December 2025. It measures boundary area, not the number of addresses or residents. Guide names describe a place near the approximate sector centre.