History of parliamentary constituencies and boundaries in Oxfordshire

As a result of the local government reorganisation introduced by the Local Government Act 1972, which came into effect on 1 April 1974, the boundaries of the historic/administrative county were altered to include northern parts of the county of Berkshire.

The table below shows the number of MPs representing Oxfordshire at each major redistribution of seats affecting the county.

County seat   Borough seat 1Formally known as New Woodstock prior to 1885 Caversham, to the north of Reading, had been absorbed by the county borough thereof and was now transferred from Henley to the constituency of Reading in Berkshire.

Woodstock, Chipping Norton and surrounding rural areas were transferred from Banbury and added to Witney.

Witney gained the two remaining wards of the West Oxfordshire District which had been included in Banbury in the previous review.