St Mary Hoo is a village in Kent, England.
It is situated within the ME3 postcode district, which is within the Rochester post town.
The full list of postcode districts within the Rochester post town is as follows:
The Rochester post town is within the Rochester postcode area.
Administrative Ward: Peninsula
Administrative District: Medway
Country: England
UK Parliament: Rochester and Strood
NHS Local Health Authority: South East Coast
NHS Region: Southern