Dagnall is a village in Buckinghamshire, England.
It is situated within the HP4 postcode district, which is within the Berkhamsted post town.
HP4 is the only postcode district within the Berkhamsted post town.
The Berkhamsted post town is within the Hemel Hempstead postcode area.
Administrative Ward: Edlesborough
Administrative District: Aylesbury Vale
Administrative County: Buckinghamshire
Country: England
UK Parliament: Buckingham
NHS Local Health Authority: South Central
NHS Region: Southern