History of parliamentary constituencies and boundaries in Berkshire

From 2024, it has returned nine MPs to the UK Parliament, including one which is shared with the county of Surrey.

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

Reading was expanded in line with the County Borough, including the absorption of Caversham, to the north of the River Thames, which had previously been part of the Henley Division of Oxfordshire.

Wokingham was re-established, comprising the borough of Wokingham and rural areas to the south and east of Reading, transferred from Newbury, and extending eastwards to include the Rural District of Easthampstead (which incorporated Bracknell), transferred from Windsor.

The number of constituencies was increased from eight to nine with the creation of Earley and Woodley, which principally incorporated areas of Reading East (Woodley) and Wokingham (Earley and Shinfield) with small parts of Reading West and Maidenhead.