Great Oakley is a village in Essex, England.
It is situated within the CO12 postcode district, which is within the Harwich post town.
CO12 is the only postcode district within the Harwich post town.
The Harwich post town is within the Colchester postcode area.
Administrative Ward: Great and Little Oakley
Administrative District: Tendring
Administrative County: Essex
Country: England
UK Parliament: Harwich and North Essex
NHS Local Health Authority: East of England
NHS Region: North, Midlands and the East