Old Eldon is a village in County Durham, England.
It is situated within the DL4 postcode district, which is within the Shildon post town.
DL4 is the only postcode district within the Shildon post town.
The Shildon post town is within the Darlington postcode area.
Administrative Ward: Chilton
Administrative District: County Durham
Country: England
UK Parliament: Bishop Auckland
NHS Local Health Authority: North East
NHS Region: North, Midlands and the East