Dacorum
20 postcode sectors mapped mainly to Dacorum. Choose a district or browse the guides below. These are postcode sectors, not named neighbourhood boundaries.
Postcode districts
Area guides
20 sectors
- AL3 8Near Flamstead
- HP1 1Near Felden
- HP1 2Near Bovingdon
- HP1 3Near Gaddesden Row
- HP1 9Near Hemel Hempstead
- HP2 4Near Hemel Hempstead
- HP2 5Near Hemel Hempstead
- HP2 6Near Piccotts End
- HP2 7Near Hemel Hempstead
- HP23 4Near Wilstone
- HP23 5Near Tring
- HP23 6Near Tring
- HP23 9Near Tring
- HP3 0Near Bovingdon
- HP3 9Near Corner Hall
- HP4 1Near Hudnall
- HP4 2Near Berkhamsted
- HP4 3Near Northchurch
- HP4 9Near Berkhamsted
- WD4 9Near Chipperfield
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.