History of parliamentary constituencies and boundaries in Buckinghamshire
The ceremonial county of Buckinghamshire, which comprises the unitary authorities of Buckinghamshire Council and the city of Milton Keynes, currently returns eight MPs to the UK Parliament. 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, with southernmost parts, including the Borough of Slough, being transferred to the county of Berkshire.