Holywell is a village in Cambridgeshire, England.
It is situated within the PE27 postcode district, which is within the St. Ives post town.
PE27 is the only postcode district within the St. Ives post town.
The St. Ives post town is within the Peterborough postcode area.
Administrative Ward: Earith
Administrative District: Huntingdonshire
Administrative County: Cambridgeshire
Country: England
UK Parliament: North West Cambridgeshire
NHS Local Health Authority: East of England
NHS Region: North, Midlands and the East