1885–1918: The Boroughs of Devizes and Marlborough, the Sessional Divisions of Devizes, Everley, Marlborough, and Ramsey, and part of the Sessional Division of Pewsey. 1918–1950: The Boroughs of Devizes and Marlborough, the Rural Districts of Devizes, Marlborough, Pewsey, and Ramsbury, and part of the Rural District of Highworth. 1950–1983: The Boroughs of Devizes and Marlborough, and the Rural Districts of Devizes, Highworth, Marlborough and Ramsbury, and Pewsey. 1983–1997: The District of Kennet, and the Borough of Thamesdown wards of Blunsdon, Chiseldon, Covingham, Highworth, Ridgeway, St Margaret, St Philip, and Wroughton. 1997–2010: The District of Kennet, the District of North Wiltshire wards of Calne Abberd, Calne Central, Calne North, Calne North East, Calne South, and Calne Without, and the District of West Wiltshire wards of Blackmore Forest, Melksham Forest, Melksham Lambourne, Melksham Roundpoint, Melksham Town, and Melksham Woodrow. 2010–present: The District of Kennet, and the District of Salisbury wards of Bulford and Durrington. The Devizes constituency covers Devizes in Wiltshire and the surrounding former Kennet district, which includes the towns of Marlborough, Ludgershall and Tidworth, together with the large villages of Bulford, Durrington and Pewsey.
Devizes was the stated constituency of fictional Conservative MP The Honourable Sir Piers Fletcher-Dervish, Baronet, later Junior Minister for Housing, in the TV sitcom The New Statesman, which was produced and set during the same decade that Charles Andrew Morrison was MP for the real-life seat. He was portrayed by actor Michael Troughton.
General election 1939/40: Another general election was required to take place before the end of 1940. The political parties had been making preparations for an election to take place from 1939 and by the end of this year, the following candidates had been selected;
General election 1914/15: Another general election was required to take place before the end of 1915. The political parties had been making preparations for an election to take place and by the July 1914, the following candidates had been selected;
Gore resigned after defecting to the Tories, causing a by-election. Locke's death caused a by-election. Durham resigned, causing a by-election. Dundas was appointed as Clerk of the Ordnance, requiring a by-election.
Following the by-election, Dundas was unseated due to bribery and Heneage was declared elected in his place
Elections in the 1840s
Sotheron resigned, by accepting the office of Steward of the Chiltern Hundreds, in order to contest a by-election at North Wiltshire, causing a by-election. Bruges resigned by accepting the office of Steward of the Chiltern Hundreds, causing a by-election.
Elections in the 1850s
Elections in the 1860s
Gladstone's death caused a by-election. Addington succeeded to the peerage, causing a by-election.