All partiesSeats won by year
- Council
- Westminster
- Devolved
- Other
All election types, 2016 onwards. Devolved covers Holyrood, the Senedd, Stormont and the London Assembly.
By-election form, last 12 months
In the last 12 months of by-elections: defended 40 (held 29, lost 11); gained 28.
- HOLDBradninchMid Devon District Council · 15 Oct 2026
- HOLDSalisbury MilfordWiltshire Council · 15 Oct 2026
- GAINWick and East CaithnessThe Highland Council · 1 Oct 2026
- GAINCranbrook, Sissinghurst & FrittendenTunbridge Wells Borough Council · 23 Sept 2026
- GAINChesterton & LauntonOxfordshire County Council · 3 Sept 2026
- HOLDKingswoodStroud District Council · 2 Sept 2026
- GAINSt Neots EynesburyHuntingdonshire District Council · 20 Aug 2026 · from Reform
- GAINHoniton St Michael'sEast Devon District Council · 13 Aug 2026 · from Labour
- GAINAlmondburyKirklees Council · 13 Aug 2026 · from Reform
- HOLDHedge End SouthEastleigh Borough Council · 30 Jul 2026
- HOLDKidlington WestCherwell District Council · 16 Jul 2026
- HOLDArgoed and New BrightonFlintshire County Council · 9 Jul 2026
Where they're standing next
- SaronCarmarthenshire County Council · 22 Oct 2026
- Hertford KingsmeadEast Hertfordshire District Council · 22 Oct 2026
- Calverley & FarsleyLeeds City Council · 22 Oct 2026
- Mid ArgyllThe Argyll and Bute Council · 29 Oct 2026
- Beechwood & HeathHalton Borough Council · 29 Oct 2026
- Dover BeckNewark and Sherwood District Council · 29 Oct 2026
Plus 4 more with candidates declared.
Strongest constituencies, 2024 General Election
- Westmorland And LonsdaleWon62.7%
- St AlbansWon56.6%
- TwickenhamWon56.3%
- Orkney And ShetlandWon55.1%
- North East FifeWon54.7%
Share of all votes cast in the constituency.