Castle Hill is a village in Suffolk, England.
It is situated within the IP1 postcode district, which is within the Ipswich post town.
The full list of postcode districts within the Ipswich post town is as follows:
The Ipswich post town is within the Ipswich postcode area.
Administrative Ward: Whitton
Administrative District: Ipswich
Administrative County: Suffolk
Country: England
UK Parliament: Central Suffolk and North Ipswich
NHS Local Health Authority: East of England
NHS Region: North, Midlands and the East