St Osyth is a village in Essex, England.
It is situated within the CO16 postcode district, which is within the Clacton-on-Sea post town.
The full list of postcode districts within the Clacton-on-Sea post town is as follows:
The Clacton-on-Sea post town is within the Colchester postcode area.
Administrative Ward: St Osyth and Point Clear
Administrative District: Tendring
Administrative County: Essex
Country: England
UK Parliament: Clacton
NHS Local Health Authority: East of England
NHS Region: North, Midlands and the East