The District of South Somerset wards of: Blackdown & Tatworth; Brympton; Chard Avishayes; Chard Combe; Chard Crimchard; Chard Holyrood; Chard Jocelyn; Coker; Crewkerne; Eggwood; Ilminster; Neroche; Parrett; South Petherton; Windwhistle; Yeovil College; Yeovil Lyde; Yeovil Summerlands; Yeovil Westland; Yeovil Without.[2]
With effect from 1 April 2023, the District of South Somerset was abolished and absorbed into the new unitary authority of Somerset.[3] Consequently, the constituency now comprises the following electoral divisions of Somerset from the 2024 general election:
In order to bring the electorate within the permitted range, rural areas to the north of the town of Yeovil were transferred to the new constituency of Glastonbury and Somerton.
From 1918 until 1983, Yeovil always returned a Conservative MP (though by only narrow margins over Labour in the 1940s and 1950s). There then followed a period of over 30 years during which the seat was represented by a member of the Liberal Party or their successors, the Liberal Democrats; firstly former leader Paddy Ashdown (1983–2001) and then former Chief Secretary to the Treasury David Laws (2001 to 2015).[5] At the 2015 election, the seat returned to its former Conservative allegiance as Marcus Fysh defeated Laws by over 5,000 votes.[6]
The South Somerset district voted 57% to leave the European Union, and academic analysis estimates that Yeovil itself voted 59% to leave.[7] There was a swing of 7.7% away from the pro-Remain Liberal Democrats towards the pro-Leave Conservatives, which made the seat much safer in 2017, Marcus Fysh's majority increasing to just under 15,000. In 2019 the voters slightly increased this majority (to over 16,000).
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 and by the Autumn of 1939, the following candidates had been selected;