Long Wittenham is a village in Oxfordshire, England.
It is situated within the OX14 postcode district, which is within the Abingdon post town.
The full list of postcode districts within the Abingdon post town is as follows:
The Abingdon post town is within the Oxford postcode area.
Administrative Ward: Brightwell
Administrative District: South Oxfordshire
Administrative County: Oxfordshire
Country: England
UK Parliament: Wantage
NHS Local Health Authority: South Central
NHS Region: Southern