| Date |
Council |
Ward |
Name |
From |
To |
| 11 Sep 25 | Broxbourne | Hoddesdon Town and Rye Park | Alexander Curtis | Independent / Other | Conservative and Unionist |
| 11 Sep 25 | Burnley | Lanehead | Fiona Wild | Independent / Other | Vacant |
| 11 Sep 25 | Caerphilly | Nelson | Sean Morgan | Labour Party | Independent / Other |
| 11 Sep 25 | Fife | Dunfermline North | Gavin Ellis | Conservative and Unionist | Reform UK |
| 11 Sep 25 | Lambeth | Streatham St Leonard's | Martin Abrams | Independent / Other | Green Party (E&W) |
| 11 Sep 25 | Newry, Mourne and Down | Downpatrick | Gareth Sharvin | SDLP (Social Democratic & Labour Party) | Vacant |
| 11 Sep 25 | Oadby and Wigston | Oadby Grange | Pritibala Joshi | Conservative and Unionist | Independent / Other |
| 11 Sep 25 | Oadby and Wigston | Oadby Uplands | Rupa Joshi | Conservative and Unionist | Independent / Other |
| 11 Sep 25 | Oldham | Royton North | Lewis Quigg | Conservative and Unionist | Independent / Other |
| 11 Sep 25 | Portsmouth | Paulsgrove | Brian Madgwick | Portsmouth Independent Party | Vacant |
| 11 Sep 25 | Surrey | Caterham Valley | Jeffrey Gray | Liberal Democrats | Vacant |
| 11 Sep 25 | Swindon | Priory Vale | Ian Edwards | Labour Party | Independent / Other |
| 11 Sep 25 | Tandridge | Whyteleafe | Jeffrey Gray | Liberal Democrats | Vacant |
| 11 Sep 25 | West Sussex | Worthing West | Graham McKnight | Labour Party | Independent / Other |
| 11 Sep 25 | Worthing | Durrington | Josh Harris | Conservative and Unionist | Independent / Other |
| 10 Sep 25 | Colchester | New Town and Christ Church | Pam Cox | Labour Party | Vacant |
| 10 Sep 25 | Greenwich | Abbey Wood | Ann-Marie Cousins | Labour Party | Independent / Other |
| 10 Sep 25 | Greenwich | Charlton Hornfair | Lakshan Saldin | Labour Party | Independent / Other |
| 10 Sep 25 | Solihull | Silhill | Michael Gough | Independent / Other | Reform UK |
| 10 Sep 25 | Solihull | St Alphege | Samantha Gethen | Independent / Other | Reform UK |
| 10 Sep 25 | Solihull | Castle Bromwich | Alan Feeney | Independent / Other | Reform UK |
| 10 Sep 25 | Tunbridge Wells | Rural Tunbridge Wells | David Knight | Independent / Other | Conservative and Unionist |
| 09 Sep 25 | Kent | Birchington & Rural | Amelia Randall | Reform UK | UK Independence Party (UKIP) |
| 08 Sep 25 | Dacorum | Berkhamsted Castle | Ian Bristow | Liberal Democrats | Independent / Other |
| 08 Sep 25 | Fenland | Whittlesey North West | Elisabeth Clough | Conservative and Unionist | Vacant |
| 08 Sep 25 | Luton | Stopsley | Matt Fry | Vacant | Liberal Democrats |
| 08 Sep 25 | Peterborough | Dogsthorpe | Dennis Jones | Labour Party | Independent / Other |
| 08 Sep 25 | Somerset | Dunster | Christine Lawrence | Conservative and Unionist | Vacant |
| 08 Sep 25 | Trafford | Broadheath | Ulrich Savary | Independent / Other | Liberal Democrats |
| 04 Sep 25 | Broadland | Thorpe St Andrew South East | Trudy Mancini-Boyle | Conservative and Unionist | Independent / Other |
| 04 Sep 25 | Chelmsford | Rettendon and Runwell | Paul Clark | Independent / Other | Reform UK |
| 04 Sep 25 | Fermanagh and Omagh | Mid Tyrone | Anne Marie Fitzgerald | Sinn Féin | Vacant |
| 04 Sep 25 | Fermanagh and Omagh | Mid Tyrone | Ruairi Lyttle | Vacant | Sinn Féin |
| 04 Sep 25 | Fermanagh and Omagh | Enniskillen | Keith Elliott | Democratic Unionist Party - D.U.P. | Vacant |
| 04 Sep 25 | Newark and Sherwood | Balderton North & Coddington | Emma Oldham | Green Party (E&W) | Vacant |
| 04 Sep 25 | Rushmoor | Aldershot Park | Jules Crossley | Labour Party | Independent / Other |
| 04 Sep 25 | Rushmoor | Rowhill | Halleh Koohestani | Labour Party | Independent / Other |
| 04 Sep 25 | Rushmoor | Wellington | Nadia Martin | Labour Party | Independent / Other |
| 04 Sep 25 | Rushmoor | Manor Park | Becky Williams | Labour Party | Independent / Other |
| 04 Sep 25 | Southwark | Faraday | Ketzia Harper | Labour Party | Independent / Other |
| 04 Sep 25 | Southwark | Faraday | Sam Foster | Labour Party | Independent / Other |
| 02 Sep 25 | Bath and North East Somerset | Widcombe & Lyncombe | Deborah Collins | Liberal Democrats | Vacant |
| 02 Sep 25 | East Devon | Exmouth Halsdon | Andrew Toye | Liberal Democrats | Vacant |
| 02 Sep 25 | East Sussex | Ashdown & Conquest | Peter Pragnell | Conservative and Unionist | Vacant |
| 02 Sep 25 | Monmouthshire | Dewstow | Tony Easson | Labour Party | Independent / Other |
| 02 Sep 25 | Newark and Sherwood | Castle | Adrian Amer | Independent / Other | Vacant |
| 02 Sep 25 | Preston | Preston Rural North | Stephen Thompson | Conservative and Unionist | Reform UK |
| 02 Sep 25 | Reigate and Banstead | Meadvale & St John's | Christopher Thompson | Liberal Democrats | Vacant |
| 02 Sep 25 | Thanet | Garlinge | John Worrow | Thanet Independents | Vacant |
| 02 Sep 25 | Wakefield | Ossett | Olivia Rowley | Labour Party | Independent / Other |
| 02 Sep 25 | West Lindsey | Cherry Willingham | Trevor Bridgwood | Independent / Other | Reform UK |
| 01 Sep 25 | Surrey | Guildford South East | Fiona Davidson | Residents for Guildford and Villages | Vacant |
| 30 Aug 25 | Glasgow City | Springburn/Robroyston | Audrey Dempsey | Independent / Other | Reform UK |
| 30 Aug 25 | Preston | Ashton | Robert Boswell | Labour Party | Vacant |
| 29 Aug 25 | Broxtowe | Nuthall East & Strelley | Judy Couch | Vacant | Conservative and Unionist |
| 29 Aug 25 | Camden | West Hampstead | Janet Grauberg | Vacant | Liberal Democrats |
| 29 Aug 25 | Lambeth | Streatham St Leonard's | Martin Abrams | Labour Party | Independent / Other |
| 29 Aug 25 | West Lancashire | Aughton & Holborn | Kerry Lloyd | Independent / Other | Vacant |
| 28 Aug 25 | Bolsover | Bolsover East | Rowan Clarke | Labour Party | Independent / Other |
| 28 Aug 25 | East Hertfordshire | Buntingford | David Woollcombe | Green Party (E&W) | Independent / Other |
| 28 Aug 25 | Waltham Forest | Hatch Lane & Highams Park North | Marion Fitzgerald | Conservative and Unionist | Independent / Other |
| 27 Aug 25 | Cheshire West and Chester | Strawberry | Gareth Gould | Labour Party | Vacant |
| 27 Aug 25 | Durham | Crook | Paul Bean | Reform UK | Independent / Other |
| 27 Aug 25 | Peterborough | Bretton | Nicola Jenkins | Labour Party | Independent / Other |
| 27 Aug 25 | Redcar and Cleveland | Skelton East | Andrew Oliver | Conservative and Unionist | Vacant |
| 27 Aug 25 | Spelthorne | Staines | Adam Gale | Green Party (E&W) | Vacant |
| 26 Aug 25 | Broxtowe | Stapleford South East | Ross Bofinger | Independent / Other | Vacant |
| 26 Aug 25 | Hart | Yateley West | Mark Vernon | Liberal Democrats | Vacant |
| 26 Aug 25 | North Northamptonshire | Lloyds & Corby Village | Robert Bloom | Reform UK | Vacant |
| 26 Aug 25 | Welwyn Hatfield | Howlands | Jill Weston | Labour Party | Independent / Other |
| 23 Aug 25 | Trafford | Broadheath | Denise Western | Labour Party | Vacant |
| 22 Aug 25 | Barnsley | Darfield | Trevor Smith | Labour Party | Reform UK |
| 22 Aug 25 | Doncaster | Bentley | Isaiah-John Reasbeck | Vacant | Reform UK |
| 22 Aug 25 | East Hampshire | Alton Amery | Lizzie Marshall | Vacant | Liberal Democrats |
| 22 Aug 25 | East Lindsey | Friskney | Carleen Dickinson | Independent / Other | Reform UK |
| 22 Aug 25 | East Renfrewshire | Barrhead, Liboside and Uplawmoor | Julie Ann McHale | Vacant | Labour Party |
| 22 Aug 25 | Gwynedd | Abermaw | Wendy Cleaver | Vacant | Independent / Other |
| 22 Aug 25 | Hounslow | Cranford | Hira Singh Dhillon | Vacant | Labour Party |
| 22 Aug 25 | Newcastle-under-Lyme | Holditch & Chesterton | Susan Beeston | Independent / Other | Conservative and Unionist |
| 22 Aug 25 | Runnymede | Addlestone South | Scott Kelly | Vacant | Reform UK |
| 22 Aug 25 | Runnymede | Addlestone South | Sam Newman | Vacant | Reform UK |
| 22 Aug 25 | Sefton | Cambridge | Mike Morris | Conservative and Unionist | Reform UK |
| 22 Aug 25 | Surrey | Addlestone | Scott Kelly | Vacant | Reform UK |
| 22 Aug 25 | Surrey | Hinchley Wood, Claygate and Oxshott | Andy Burton | Vacant | Liberal Democrats |
| 20 Aug 25 | Burnley | Rosehill with Burnley Wood | Jeff Sumner | Liberal Democrats | Reform UK |
| 20 Aug 25 | Fife | Burntisland, Kinghorn and Western Kirkcaldy | Julie MacDougall | Independent / Other | Reform UK |
| 20 Aug 25 | Isle of Wight | Lake North | David Maclean | Reform UK | Vacant |
| 20 Aug 25 | Tameside | Denton North East | Vincent Ricci | Labour Party | Independent / Other |
| 20 Aug 25 | Tunbridge Wells | Rural Tunbridge Wells | David Knight | Tunbridge Wells Alliance | Independent / Other |
| 18 Aug 25 | Maidstone | Harrietsham, Lenham & North Downs | Kathy Cox | Independent / Other | Vacant |
| 18 Aug 25 | Mid and East Antrim | Ballymena | Lawrie Philpott | Democratic Unionist Party - D.U.P. | Independent / Other |
| 18 Aug 25 | Swansea | Mumbles | Francesca O'Brien | Conservative and Unionist | Reform UK |
| 18 Aug 25 | Tameside | Denton West | Brenda Warrington | Independent / Other | Labour Party |
| 18 Aug 25 | Tameside | Denton West | George Jones | Independent / Other | Labour Party |
| 18 Aug 25 | Tameside | Denton South | Claire Reid | Independent / Other | Labour Party |
| 18 Aug 25 | Tameside | Denton North East | Vincent Ricci | Independent / Other | Labour Party |
| 18 Aug 25 | Tameside | Denton North East | Denise Ward | Independent / Other | Labour Party |
| 18 Aug 25 | Tameside | Denton North East | Allison Gwynne | Independent / Other | Labour Party |
| 16 Aug 25 | Liverpool | Dingle | Steve Munby | Labour Party | Independent / Other |
| 16 Aug 25 | Manchester | Woodhouse Park | Anastasia Wiest | Green Party (E&W) | Vacant |
| 15 Aug 25 | Cardiff | Grangetown | Matt Youde | Vacant | Green Party (E&W) |
| 15 Aug 25 | Newcastle upon Tyne | South Jesmond | Sarah Peters | Vacant | Green Party (E&W) |
| 15 Aug 25 | Nuneaton and Bedworth | Heath | Rob Roze | Labour Party | Independent / Other |
| 15 Aug 25 | Wirral | Upton | Jean Robinson | Labour Party | Independent / Other |
| 13 Aug 25 | Bournemouth, Christchurch and Poole | Boscombe West | Gillian Martin | Labour Party | Independent / Other |
| 13 Aug 25 | Isle of Wight | Newchurch, Havenstreet & Ashey | Clare Mosdell | Conservative and Unionist | Independent / Other |
| 13 Aug 25 | Luton | Challney | Khtija Malik | Labour Party | Independent / Other |
| 13 Aug 25 | Maidstone | Harrietsham, Lenham & North Downs | Janetta Sams | Independent / Other | Vacant |
| 13 Aug 25 | Maidstone | Harrietsham, Lenham & North Downs | Tom Sams | Independent / Other | Vacant |
| 13 Aug 25 | Somerset | Glastonbury | Nick Cottle | Liberal Democrats | Vacant |
| 11 Aug 25 | Ashford | Rolvenden & Tenterden West | Kate Walder | Green Party (E&W) | Vacant |
| 09 Aug 25 | Bolton | Farnworth North | Susan Haworth | Labour Party | Independent / Other |
| 08 Aug 25 | Birmingham | Oscott | Barbara Dring | Labour Party | Independent / Other |
| 08 Aug 25 | Birmingham | Stockland Green | Jane Jones | Labour Party | Independent / Other |
| 08 Aug 25 | Cannock Chase | Hednesford Green Heath | Paul Jones | Vacant | Reform UK |
| 08 Aug 25 | Cardiff | Trowbridge | Chris Lay | Labour Party | Vacant |
| 08 Aug 25 | Carmarthenshire | Llangennech | Carmelo Colasanto | Vacant | Reform UK |
| 08 Aug 25 | Durham | Easington & Shotton | Louise Penders | Vacant | Reform UK |
| 08 Aug 25 | Sheffield | Crookes and Crosspool | Ruth Milsom | Labour Party | Independent / Other |
| 08 Aug 25 | Staffordshire Moorlands | Biddulph West | Charlie Smith | Labour Party | Independent / Other |
| 07 Aug 25 | Burnley | Lanehead | Fiona Wild | Labour Party | Independent / Other |
| 07 Aug 25 | Hartlepool | Rural West | Mike Young | Conservative and Unionist | Reform UK |
| 07 Aug 25 | Southampton | Coxford | Rebecca McCreanor | Labour Party | Liberal Democrats |
| 07 Aug 25 | Walsall | Aldridge Central and South | Bobby Bains | Independent / Other | Conservative and Unionist |
| 07 Aug 25 | Walsall | Bloxwich West | Michael Coulson | Independent / Other | Labour Party |
| 07 Aug 25 | Waltham Forest | Hatch Lane & Highams Park North | Justin Halabi | Conservative and Unionist | Reform UK |
| 07 Aug 25 | Wandsworth | Nine Elms | Mark Justin | Conservative and Unionist | Reform UK |
| 06 Aug 25 | Cambridge | Romsey | Dave Baigent | Labour Party | Independent / Other |
| 06 Aug 25 | Solihull | Chelmsley Wood | Jane Lamden | Green Party (E&W) | Conservative and Unionist |
| 06 Aug 25 | Southend-on-Sea | Shoeburyness | Judith McMahon | Conservative and Unionist | Reform UK |
| 06 Aug 25 | Southend-on-Sea | Southchurch | Daniel Nelson | Conservative and Unionist | Reform UK |
| 06 Aug 25 | Stirling | Stirling East | Bryan Flannagan | Conservative and Unionist | Vacant |
| 06 Aug 25 | Warwick | Kenilworth Park Hill | Lara Cron | Green Party (E&W) | Vacant |
| 05 Aug 25 | Forest of Dean | Lydney East | Alan Preest | Conservative and Unionist | Reform UK |
| 05 Aug 25 | Sunderland | Castle | Denny Wilson | Labour Party | Independent / Other |
| 05 Aug 25 | Surrey | Camberley West | David Lewis | Conservative and Unionist | Vacant |
| 04 Aug 25 | Burnley | Hapton with Park | Alan Hosker | Independent / Other | Reform UK |
| 03 Aug 25 | Horsham | West Chiltington, Thakeham & Ashington | Alan Manton | Conservative and Unionist | Independent / Other |
| 03 Aug 25 | Wirral | Pensby and Thingwall | Richie Pitt | Labour Party | Independent / Other |
| 01 Aug 25 | Barking and Dagenham | Thames View | Lucy Sara Lee | Vacant | Labour Party |
| 01 Aug 25 | Breckland | Thetford Castle | Hazel McCambridge | Labour Party | Vacant |
| 01 Aug 25 | Coventry | Westwood | Grace Lewis | Labour Party | Independent / Other |
| 01 Aug 25 | North Devon | Barnstaple with Westacott | Josh Rutty | Vacant | Liberal Democrats |
| 01 Aug 25 | Norwich | Wensum | Liam Calvert | Green Party (E&W) | Independent / Other |
| 01 Aug 25 | Southwark | Chaucer | Laura Johnson | Labour Party | Independent / Other |
| 01 Aug 25 | Walsall | Pelsall | Garry Perry | Conservative and Unionist | Vacant |
| 01 Aug 25 | Warrington | Bewsey and Whitecross | John Roddy | Vacant | Reform UK |
| 01 Aug 25 | Wigan | Wigan Central | George Davies | Labour Party | Vacant |
| 31 Jul 25 | Birmingham | Moseley | Kerry Jenkins | Labour Party | Vacant |
| 31 Jul 25 | Wolverhampton | Wednesfield South | Greg Brackenridge | Labour Party | Independent / Other |
| 31 Jul 25 | Worthing | Durrington | Charles James | Conservative and Unionist | Independent / Other |
| 30 Jul 25 | Brighton and Hove | Queen's Park | Tristram Burden | Labour Party | Vacant |
| 30 Jul 25 | Highland | Caol and Mallaig | Andrew Baldrey | Scottish Green Party | Vacant |
| 30 Jul 25 | Newham | Plaistow South | Neil Wilson | Labour Party | Vacant |
| 30 Jul 25 | Newry, Mourne and Down | Downpatrick | Cadogan Enright | Alliance - Alliance Party of Northern Ireland | Independent / Other |
| 29 Jul 25 | Amber Valley | Belper East | Fay Atkinson | Belper Independents | Independent / Other |
| 29 Jul 25 | Amber Valley | Belper North | Ben Bellamy | Belper Independents | Independent / Other |
| 29 Jul 25 | Havant | Hart Plain | Elaine Shimbart | Conservative and Unionist | Independent / Other |
| 29 Jul 25 | Manchester | Whalley Range | Muqaddasah Bano | Labour Party | Independent / Other |
| 29 Jul 25 | Warwick | Warwick All Saints & Woodloes | Claire Wightman | Labour Party | Independent / Other |
| 29 Jul 25 | Warwick | Warwick All Saints & Woodloes | Paul Wightman | Labour Party | Independent / Other |
| 29 Jul 25 | Warwick | Warwick Aylesford | Daniel Browne | Labour Party | Independent / Other |
| 28 Jul 25 | Babergh | Copdock & Washbrook | David Busby | Liberal Democrats | Vacant |
| 28 Jul 25 | Bournemouth, Christchurch and Poole | Kinson | Michelle Dower | Labour Party | Independent / Other |
| 28 Jul 25 | Harborough | Lutterworth East | Martin Sarfas | Reform UK | Independent / Other |
| 28 Jul 25 | Surrey | Horley West, Salfords and Sidlow | Andy Lynch | Conservative and Unionist | Reform UK |
| 26 Jul 25 | Boston | Fenside | Anton Dani | Conservative and Unionist | Independent / Other |
| 26 Jul 25 | Bournemouth, Christchurch and Poole | Talbot & Branksome Woods | Philip Broadhead | Conservative and Unionist | Vacant |
| 26 Jul 25 | Bromley | Bromley Common & Holwood | Alan Cook | Vacant | Reform UK |
| 26 Jul 25 | Cardiff | Llanrumney | Lexi Joanna Pocknell | Vacant | Labour Party |
| 26 Jul 25 | Central Bedfordshire | Stotfold | Helen Wightwick | Labour Party | Vacant |
| 26 Jul 25 | Dacorum | Berkhamsted West | Will Jankowski | Vacant | Liberal Democrats |
| 26 Jul 25 | Dorset | Swanage | Chris Tomes | Vacant | Conservative and Unionist |
| 26 Jul 25 | East Devon | Exmouth Brixington | Aurora Bailey | Conservative and Unionist | Independent / Other |
| 26 Jul 25 | Elmbridge | Molesey East | Kevin Whincup | Liberal Democrats | Independent / Other |
| 26 Jul 25 | Hertsmere | Borehamwood Brookmeadow | Simon Rubner | Vacant | Conservative and Unionist |
| 26 Jul 25 | Lichfield | Alrewas & Fradley | Richard Stephenson | Vacant | Conservative and Unionist |
| 26 Jul 25 | North Lanarkshire | Motherwell North | Andrew Duffy-Lawson | Labour Party | Independent / Other |
| 26 Jul 25 | Rochdale | Wardle, Shore & West Littleborough | John Taylor | Independent / Other | Reform UK |
| 26 Jul 25 | Rutland | Barleythorpe | Andrew Dinsmore | Vacant | Conservative and Unionist |
| 26 Jul 25 | South Ayrshire | Ayr North | Mark Dixon | Independent / Other | Vacant |
| 26 Jul 25 | Spelthorne | Riverside and Laleham | Denise Saliagopoulos | Independent / Other | Conservative and Unionist |
| 26 Jul 25 | Tamworth | Wilnecote | Tina Clements | Conservative and Unionist | Independent / Other |
| 26 Jul 25 | Tamworth | Spital | Samuel Smith | Conservative and Unionist | Independent / Other |
| 26 Jul 25 | Test Valley | Andover Romans | Katie Brooks | Conservative and Unionist | Independent / Other |
| 23 Jul 25 | Conwy | Tudno | Thomas Montgomery | Conservative and Unionist | Reform UK |
| 23 Jul 25 | Conwy | Gogarth Mostyn | Louise Emery | Conservative and Unionist | Reform UK |
| 23 Jul 25 | Hammersmith and Fulham | Ravenscourt | Liz Collins | Labour Party | Green Party (E&W) |
| 23 Jul 25 | Hammersmith and Fulham | Walham Green | Trey Campbell-Simon | Labour Party | Green Party (E&W) |
| 23 Jul 25 | Portsmouth | Copnor | Raymond Dent | Portsmouth Independent Party | Reform UK |
| 23 Jul 25 | Portsmouth | Paulsgrove | George Madgwick | Portsmouth Independent Party | Reform UK |
| 23 Jul 25 | Rother | Sedlescombe & Westfield | Beverley Coupar | Independent / Other | Liberal Democrats |
| 22 Jul 25 | Rushmoor | Fernhill | Abe Allen | Labour Party | Independent / Other |
| 22 Jul 25 | Sandwell | Blackheath | Danny Millard | Labour Party | Independent / Other |
| 22 Jul 25 | Sandwell | Rowley | Claire Mayo | Labour Party | Independent / Other |
| 22 Jul 25 | Warwick | Leamington Clarendon | Helen Adkins | Labour Party | Vacant |
| 21 Jul 25 | Rochford | Sweyne Park and Grange | Vilma Wilson | Liberal Democrats | Rochford District Residents |
| 21 Jul 25 | Rochford | Lodge | Robert Milne | Liberal Democrats | Independent / Other |
| 21 Jul 25 | Rochford | Trinity | Sarah Page | Liberal Democrats | Independent / Other |
| 21 Jul 25 | Rochford | Wheatley | Richard Linden | Liberal Democrats | Independent / Other |
| 20 Jul 25 | Southwark | Rotherhithe | Kath Whittam | Labour Party | Independent / Other |
| 20 Jul 25 | Wandsworth | West Putney | Nick Austin | Conservative and Unionist | Independent / Other |
| 18 Jul 25 | Basildon | St Martin's | Sam Journet | Vacant | Reform UK |
| 18 Jul 25 | Camden | West Hampstead | Shiva Tiwari | Conservative and Unionist | Vacant |
| 18 Jul 25 | Dartford | Maypole & Leyton Cross | Stephen Ridley | Vacant | Reform UK |
| 18 Jul 25 | Dartford | Stone House | James Buchan | Vacant | Reform UK |
| 18 Jul 25 | Denbighshire | Prestatyn Central | Ben Williams | Vacant | Conservative and Unionist |
| 18 Jul 25 | Harborough | Market Harborough-Logan | Paul Bremner | Vacant | Conservative and Unionist |
| 18 Jul 25 | Liverpool | Sefton Park | Katie Jarman | Vacant | Green Party (E&W) |
| 18 Jul 25 | Neath Port Talbot | Baglan | Josh Tuck | Vacant | Labour Party |
| 18 Jul 25 | Rhondda Cynon Taf | Pontypridd Town | William Rees | Vacant | Plaid Cymru - The Party of Wales |
| 18 Jul 25 | Staffordshire | Eccleshall & Gnosall | Jeremy Pert | Vacant | Conservative and Unionist |
| 17 Jul 25 | Devon | Pinhoe & Mincinglake | Edward Hill | Reform UK | Independent / Other |
| 17 Jul 25 | East Riding of Yorkshire | Bridlington South | Andy Walker | The Yorkshire Party | Green Party (E&W) |
| 17 Jul 25 | East Riding of Yorkshire | Bridlington South | Tim Norman | The Yorkshire Party | Green Party (E&W) |
| 17 Jul 25 | East Riding of Yorkshire | Bridlington South | Rick Arrand | The Yorkshire Party | Green Party (E&W) |
| 17 Jul 25 | Lambeth | Clapham Park | Irfan Mohammed | Labour Party | Independent / Other |
| 17 Jul 25 | South Kesteven | Grantham St Vincent's | Graham Jeal | Conservative and Unionist | Reform UK |
| 17 Jul 25 | South Kesteven | Isaac Newton | Ben Green | Conservative and Unionist | Reform UK |
| 17 Jul 25 | South Kesteven | Isaac Newton | David Bellamy | Conservative and Unionist | Reform UK |
| 17 Jul 25 | Trafford | Broadheath | Ulrich Savary | Labour Party | Independent / Other |
| 16 Jul 25 | Boston | Skirbeck | Neil Drayton | Boston Independent | Independent / Other |
| 16 Jul 25 | Boston | Staniland | Barrie Pierpoint | Boston Independent | Independent / Other |
| 16 Jul 25 | Boston | Station | Lina Savickiene | Boston Independent | Independent / Other |
| 16 Jul 25 | Boston | Swineshead and Holland Fen | Suzanne Welberry | Boston Independent | Independent / Other |
| 16 Jul 25 | Boston | Witham | Andy Izard | Boston Independent | Independent / Other |
| 16 Jul 25 | Boston | Witham | Sandeep Ghosh | Boston Independent | Independent / Other |
| 16 Jul 25 | Boston | Wyberton | Chris Mountain | Boston Independent | Independent / Other |
| 16 Jul 25 | Boston | Coastal | Dale Broughton | Boston Independent | Independent / Other |
| 16 Jul 25 | Boston | Fenside | Patricia Marson | Boston Independent | Independent / Other |
| 16 Jul 25 | Boston | Fishtoft | Sarah Sharpe | Boston Independent | Independent / Other |
| 16 Jul 25 | Boston | Fishtoft | David Scoot | Boston Independent | Independent / Other |
| 16 Jul 25 | Boston | Fishtoft | Helen Staples | Boston Independent | Independent / Other |
| 16 Jul 25 | Boston | Old Leake and Wrangle | John Baxter | Boston Independent | Independent / Other |
| 16 Jul 25 | Boston | Old Leake and Wrangle | Callum Butler | Boston Independent | Independent / Other |
| 16 Jul 25 | Fife | Buckhaven, Methil and Wemyss Villages | David Graham | Labour Party | Vacant |
| 16 Jul 25 | Teignbridge | Kenn Valley | Kevin Lake | Conservative and Unionist | Vacant |
| 16 Jul 25 | Waverley | Godalming Farncombe & Catteshall | Janet Crowe | Labour Party | Independent / Other |
| 14 Jul 25 | West Oxfordshire | Carterton North West | Natalie King | Liberal Democrats | Independent / Other |
| 14 Jul 25 | West Sussex | Littlehampton Town | David Britton | Conservative and Unionist | Independent / Other |
| 13 Jul 25 | Broxtowe | Nuthall East & Strelley | Graham Hills | Conservative and Unionist | Vacant |
| 13 Jul 25 | Hyndburn | Peel | Joyce Plummer | Independent / Other | Conservative and Unionist |
| 13 Jul 25 | Runnymede | Addlestone South | Peter Snow | Conservative and Unionist | Vacant |
| 11 Jul 25 | Bassetlaw | Ranskill | Andrew McCallum | Vacant | Reform UK |
| 11 Jul 25 | Hartlepool | Throston | Ed Doyle | Vacant | Reform UK |
| 11 Jul 25 | Isle of Wight | Wroxall, Lowtherville & Bonchurch | Mark Jefferies | Vacant | Independent / Other |
| 11 Jul 25 | Mole Valley | Bookham East & Eastwick Park | Lawrence Penny | Vacant | Liberal Democrats |
| 11 Jul 25 | Rotherham | Keppel | Tony Harrison | Vacant | Reform UK |
| 11 Jul 25 | Surrey | Woking South | Louise Morales | Vacant | Liberal Democrats |
| 11 Jul 25 | Tewkesbury | Northway | Graham Bocking | Vacant | Reform UK |
| 11 Jul 25 | Vale of Glamorgan | Illtyd | Howard Hamilton | Labour Party | Vacant |
| 11 Jul 25 | Vale of White Horse | Botley & Sunningwell | Ben Potter | Vacant | Liberal Democrats |
| 11 Jul 25 | Wealden | Horam & Punnetts Town | Diane Gould | Vacant | Green Party (E&W) |
| 11 Jul 25 | Woking | Hoe Valley | Deborah Hughes | Vacant | Liberal Democrats |
| 11 Jul 25 | Worcester | St Peter's Parish | Elena Round | Green Party (E&W) | Independent / Other |
| 07 Jul 25 | Brentwood | Hutton South | Mark Reed | Conservative and Unionist | Vacant |
| 07 Jul 25 | Doncaster | Bentley | Samuel Booth | Reform UK | Vacant |
| 07 Jul 25 | Peterborough | Hampton Vale | Roger Antunes | Peterborough First | Independent / Other |
| 05 Jul 25 | Reigate and Banstead | Redhill West & Wray Common | Mark Smith | Labour Party | Independent / Other |
| 05 Jul 25 | Reigate and Banstead | Redhill West & Wray Common | Jenny Orchard | Labour Party | Independent / Other |
| 04 Jul 25 | Bath and North East Somerset | Mendip | Simon McCombe | Vacant | Liberal Democrats |
| 04 Jul 25 | Durham | Benfieldside | Terry Rooney | Vacant | Liberal Democrats |
| 04 Jul 25 | Gedling | Calverton | Andy Meads | Vacant | Independent / Other |
| 04 Jul 25 | Hammersmith and Fulham | Fulham Town | Liam Downer-Sanderson | Vacant | Conservative and Unionist |
| 04 Jul 25 | Nottinghamshire | Newark West | Keith Girling | Vacant | Conservative and Unionist |
| 04 Jul 25 | Powys | Llanidloes | Fleur Frantz-Morgans | Vacant | Liberal Democrats |
| 04 Jul 25 | Suffolk | Tower | Martin Robinson | Vacant | Reform UK |
| 03 Jul 25 | Barnsley | Old Town | Clive Pickering | Labour Party | Liberal Democrats |
| 03 Jul 25 | Broadland | Marshes | Grant Nurden | Conservative and Unionist | Independent / Other |
| 03 Jul 25 | Bury | Pilkington Park | Russell Bernstein | Conservative and Unionist | Independent / Other |
| 03 Jul 25 | Bury | Radcliffe North & Ainsworth | Jo Lancaster | Conservative and Unionist | Independent / Other |
| 03 Jul 25 | Bury | Bury West | Dene Vernon | Conservative and Unionist | Independent / Other |
| 03 Jul 25 | Bury | Tottington | Luis McBriar | Conservative and Unionist | Independent / Other |
| 03 Jul 25 | East Hampshire | Alton Amery | Steve Hunt | Liberal Democrats | Vacant |
| 03 Jul 25 | North Ayrshire | North Coast | Todd Ferguson | Conservative and Unionist | Independent / Other |
| 03 Jul 25 | North Tyneside | Killingworth | Brian Smith | Vacant | Reform UK |
| 03 Jul 25 | North Tyneside | Longbenton & Benton | Bryan Macdonald | Vacant | Labour Party |
| 01 Jul 25 | Barnet | Finchley Church End | Daniel Thomas | Conservative and Unionist | Reform UK |
| 30 Jun 25 | Highland | Tain and Easter Ross | Derek Louden | Scottish National Party (SNP) | Vacant |
| 30 Jun 25 | Luton | Stopsley | David Wynn | Liberal Democrats | Vacant |
| 30 Jun 25 | Scottish Borders | East Berwickshire | Aileen Orr | Scottish National Party (SNP) | Independent / Other |
| 30 Jun 25 | South Gloucestershire | Yate North | Ben Nutland | Liberal Democrats | Independent / Other |
| 28 Jun 25 | Newcastle upon Tyne | South Jesmond | Milo Barnett | Labour Party | Vacant |
| 28 Jun 25 | Southampton | Swaythling | Matthew Bunday | Labour Party | Liberal Democrats |
| 28 Jun 25 | West Suffolk | Newmarket East | Sue Perry | Labour Party | Vacant |
| 27 Jun 25 | Basildon | Wickford Park | Sarah-Jane Shields | Vacant | Reform UK |
| 27 Jun 25 | Chorley | Buckshaw & Whittle | Aidy Riggott | Vacant | Conservative and Unionist |
| 27 Jun 25 | Edinburgh | Fountainbridge/Craiglockhart | Kevin McKay | Vacant | Liberal Democrats |
| 27 Jun 25 | Enfield | Ponders End | Mohammad Islam | Labour Party | Independent / Other |
| 27 Jun 25 | Greenwich | Shooters Hill | Tamasin Rhymes | Vacant | Green Party (E&W) |
| 27 Jun 25 | Mid Devon | Crediton Lawrence | Tim Stanford | Vacant | Liberal Democrats |
| 27 Jun 25 | Rossendale | Whitworth | Mackenzie Ritson | Vacant | Reform UK |
| 27 Jun 25 | Rother | Catsfield & Crowhurst | Nicola McLaren | Vacant | Liberal Democrats |
| 27 Jun 25 | Sheffield | Stocksbridge and Upper Don | John Booker | Vacant | Reform UK |
| 27 Jun 25 | South Staffordshire | Great Wyrley Landywood | Joe Hill | Vacant | Conservative and Unionist |
| 27 Jun 25 | Stevenage | Bedwell | Dermot Kehoe | Vacant | Labour Party |
| 26 Jun 25 | Aberdeenshire | Ellon and District | Gillian Owen | Conservative and Unionist | Independent / Other |
| 26 Jun 25 | Haringey | Fortis Green | Mark Blake | Independent / Other | Green Party (E&W) |
| 26 Jun 25 | Lewisham | New Cross Gate | Liam Shrivastava | Labour Party | Green Party (E&W) |
| 24 Jun 25 | Broxbourne | Hoddesdon Town and Rye Park | Alexander Curtis | Conservative and Unionist | Independent / Other |
| 24 Jun 25 | Cardiff | Grangetown | Sara Robinson | Labour Party | Vacant |
| 24 Jun 25 | Hillingdon | Hayes Town | Peter Curling | Labour Party | Independent / Other |
| 24 Jun 25 | Hillingdon | Hayes Town | Janet Gardner | Labour Party | Independent / Other |
| 24 Jun 25 | Perth and Kinross | Perth City South | Andy Chan | Conservative and Unionist | Independent / Other |
| 24 Jun 25 | South Tyneside | Hebburn South | Shane Smith | Labour Party | Independent / Other |
| 23 Jun 25 | Bedford | Kempston Central & East | Caroline White | Labour Party | Independent / Other |
| 23 Jun 25 | Dudley | Sedgley | Shaun Keasey | Independent / Other | Reform UK |
| 23 Jun 25 | Westminster | Lancaster Gate | Laila Cunningham | Conservative and Unionist | Reform UK |
| 22 Jun 25 | Bassetlaw | Clayworth | Fraser McFarland | Independent / Other | Reform UK |
| 21 Jun 25 | Hounslow | Cranford | Sukhbir Dhaliwal | Labour Party | Vacant |
| 20 Jun 25 | Adur | Buckingham | Kate Davis | Vacant | Labour Party |
| 20 Jun 25 | Brent | Barnhill | Kathleen Fraser | Labour Party | Independent / Other |
| 20 Jun 25 | Broxtowe | Attenborough & Chilwell East | Tyler Marsh | Labour Party | Broxtowe Alliance |
| 20 Jun 25 | Burnley | Hapton with Park | Alan Hosker | Conservative and Unionist | Independent / Other |
| 20 Jun 25 | Dacorum | Berkhamsted West | Robert Stewart | Liberal Democrats | Vacant |
| 20 Jun 25 | Gateshead | Bridges | Robert Waugh | Labour Party | Independent / Other |
| 20 Jun 25 | Highland | Cromarty Firth | Richard Cross | Vacant | Independent / Other |
| 20 Jun 25 | Highland | Eilean á Chèo | Christine Gillies | Vacant | Independent / Other |
| 20 Jun 25 | North Yorkshire | Eastfield | Tom Seston | Vacant | Reform UK |
| 20 Jun 25 | Sefton | Blundellsands | David Roscoe | Vacant | Labour Party |
| 20 Jun 25 | Spelthorne | Ashford Town | Gregory Neall | Vacant | Liberal Democrats |
| 19 Jun 25 | Basildon | Pitsea South East | Ben Westwick | Labour Party | Independent / Other |
| 19 Jun 25 | Cheshire East | Wilmslow Lacey Green | Chris Hilliard | Residents of Wilmslow | Vacant |
| 19 Jun 25 | Peterborough | Eye, Thorney and Newborough | Mark Ormston | Peterborough First | Independent / Other |
| 19 Jun 25 | West Oxfordshire | Milton-under-Wychwood | Adam Clements | Liberal Democrats | Independent / Other |
| 18 Jun 25 | Cardiff | Llanrumney | Heather Joyce | Labour Party | Vacant |
| 18 Jun 25 | Lancaster | Westgate | Chris Harris | Labour Party | Independent / Other |
| 18 Jun 25 | Wakefield | Ossett | Nick Farmer | Conservative and Unionist | Reform UK |
| 16 Jun 25 | Leeds | Little London & Woodhouse | Abigail Marshall Katung | Labour Party | Independent / Other |
| 16 Jun 25 | Warrington | Bewsey and Whitecross | Shireen Mohammed | Labour Party | Vacant |
| 14 Jun 25 | Cheshire West and Chester | Whitby Groves | Jimmy Shannon | Labour Party | Independent / Other |
| 14 Jun 25 | Cheshire West and Chester | Great Boughton | Elizabeth MacGlashan | Labour Party | Independent / Other |
| 13 Jun 25 | Cardiff | Pontprennau and Old St Mellons | Peter Littlechild | Conservative and Unionist | Independent / Other |
| 13 Jun 25 | Edinburgh | Forth | Cammy Day | Independent / Other | Labour Party |
| 13 Jun 25 | Leeds | Morley South | Ryan Taylor | Vacant | Reform UK |
| 13 Jun 25 | Mid Suffolk | Haughley, Stowupland & Wetherden | Agnes Watson | Vacant | Green Party (E&W) |
| 13 Jun 25 | North Devon | Barnstaple with Westacott | Katrina Stevenson | Liberal Democrats | Vacant |
| 13 Jun 25 | North Northamptonshire | Highham Ferrers | Mark Haddon | Vacant | Reform UK |
| 13 Jun 25 | North Northamptonshire | Highham Ferrers | Jennie Bone | Vacant | Conservative and Unionist |
| 13 Jun 25 | Nottinghamshire | Mansfield North | Gaynor Mann | Vacant | Reform UK |
| 13 Jun 25 | Nottinghamshire | Mansfield North | David Smith | Vacant | Reform UK |
| 13 Jun 25 | Wakefield | Wakefield West | Kevin Swift | Labour Party | Independent / Other |
| 12 Jun 25 | Aberdeenshire | Huntly, Strathbogie and Howe of Alford | Lauren Knight | Conservative and Unionist | Reform UK |
| 12 Jun 25 | Solihull | Castle Bromwich | Alan Feeney | Conservative and Unionist | Independent / Other |
| 12 Jun 25 | Stroud | Severn | Moya Shannon | Vacant | Green Party (E&W) |
| 12 Jun 25 | Sunderland | St Chad's | Simon Ayre | Conservative and Unionist | Independent / Other |
| 10 Jun 25 | Basildon | St Martin's | Maryam Yaqub | Labour Party | Vacant |
| 10 Jun 25 | Caerphilly | Nelson | Brenda Miles | Labour Party | Independent / Other |
| 10 Jun 25 | Durham | Easington & Shotton | John Bailey | Reform UK | Vacant |
| 10 Jun 25 | Hertsmere | Borehamwood Brookmeadow | Alan Plancey | Conservative and Unionist | Vacant |
| 10 Jun 25 | Kent | Cliftonville | Daniel Taylor | Reform UK | Independent / Other |
| 10 Jun 25 | Merthyr Tydfil | Dowlais and Pant | David Hughes | Independent / Other | Reform UK |
| 10 Jun 25 | Merthyr Tydfil | Town | Andrew Barry | Independent / Other | Reform UK |
| 10 Jun 25 | Runnymede | Addlestone South | John Furey | Conservative and Unionist | Vacant |
| 10 Jun 25 | Surrey | Addlestone | John Furey | Conservative and Unionist | Vacant |
| 07 Jun 25 | Ashford | Bybrook | Alan Dean | Independent / Other | Green Party (E&W) |
| 07 Jun 25 | Bromley | Bromley Common & Holwood | Jonathan Laidlaw | Independent / Other | Vacant |
| 07 Jun 25 | Cannock Chase | Hednesford Green Heath | Fred Prestwood | Labour Party | Vacant |
| 07 Jun 25 | Cardiff | Lisvane and Thornhill | Emma Reid-Jones | Conservative and Unionist | Independent / Other |
| 07 Jun 25 | Folkestone and Hythe | Folkestone Harbour | Bridget Chapman | Labour Party | Independent / Other |
| 07 Jun 25 | Lichfield | Alrewas & Fradley | Michael Wilcox | Independent / Other | Vacant |
| 06 Jun 25 | Amber Valley | Somercotes | James Kerry | Vacant | Reform UK |
| 06 Jun 25 | King's Lynn and West Norfolk | Fairstead | Jacqueline Fry | Vacant | Reform UK |
| 06 Jun 25 | King's Lynn and West Norfolk | North Lynn | Austen Moore | Vacant | Reform UK |
| 06 Jun 25 | Rutland | Barleythorpe | Hans Zollinger-Ball | Green Party (E&W) | Vacant |
| 06 Jun 25 | Tendring | Frinton | Anne Davis | Vacant | Reform UK |
| 06 Jun 25 | West Suffolk | Barrow | Ian Houlder | Conservative and Unionist | Independent / Other |
| 06 Jun 25 | West Sussex | St. Leonard's Forest | Sam Raby | Vacant | Liberal Democrats |
| 06 Jun 25 | West Sussex | Burgess Hill North | Jane Davey | Vacant | Liberal Democrats |
| 06 Jun 25 | West Sussex | Hassocks & Burgess Hill South | Erika Woodhurst-Trueman | Vacant | Liberal Democrats |
| 06 Jun 25 | Wokingham | Maiden Erlegh & Whitegates | Mike Smith | Vacant | Liberal Democrats |
| 05 Jun 25 | Conwy | Glyn y Marl | Dave Jones | Labour Party | Independent / Other |
| 05 Jun 25 | Coventry | Sherbourne | Jackie Gardiner | Conservative and Unionist | Reform UK |
| 05 Jun 25 | Coventry | Westwood | Marcus Lapsa | Conservative and Unionist | Reform UK |
| 05 Jun 25 | Lisburn and Castlereagh | Castlereagh South | Nancy Eaton | Alliance - Alliance Party of Northern Ireland | Vacant |
| 05 Jun 25 | Lisburn and Castlereagh | Castlereagh South | Bronagh Magee | Vacant | Alliance - Alliance Party of Northern Ireland |
| 05 Jun 25 | Liverpool | Sefton Park | John Howard | Green Party (E&W) | Vacant |
| 04 Jun 25 | Rhondda Cynon Taf | Pontypridd Town | Dawn Wood | Plaid Cymru - The Party of Wales | Vacant |
| 04 Jun 25 | Wychavon | Broadway, Sedgeberrow & Childswickham | Emma Sims | Conservative and Unionist | Liberal Democrats |
| 03 Jun 25 | East Renfrewshire | Barrhead, Liboside and Uplawmoor | Betty Cunningham | Labour Party | Vacant |
| 03 Jun 25 | Gwynedd | Abermaw | Rob Triggs | Independent / Other | Vacant |
| 03 Jun 25 | Isle of Wight | Wroxall, Lowtherville & Bonchurch | Rodney Downer | Independent / Other | Vacant |
| 03 Jun 25 | Torbay | Furzeham with Summercombe | Jason Hutchings | Conservative and Unionist | Independent / Other |
| 03 Jun 25 | West Northamptonshire | Hackleton & Roade | Adam Smith | Reform UK | Independent / Other |
| 02 Jun 25 | Aberdeen City | Lower Deeside | Duncan Massey | Conservative and Unionist | Reform UK |
| 02 Jun 25 | Renfrewshire | Renfrew North and Braehead | Jamie McGuire | Labour Party | Reform UK |
| 02 Jun 25 | Wakefield | Wakefield West | Michael Graham | Labour Party | Independent / Other |
| 31 May 25 | Carmarthenshire | Lliedi | Michelle Beer | Vacant | Reform UK |
| 31 May 25 | Castle Point | Canvey Island Winter Gardens | Reece Langley | Vacant | Reform UK |
| 31 May 25 | Doncaster | Hatfield | Mark Broadhurst | Reform UK | Independent / Other |
| 31 May 25 | Dumfries and Galloway | Mid Galloway and Wigtown West | David Inglis | Conservative and Unionist | Independent / Other |
| 31 May 25 | Dumfries and Galloway | Mid Galloway and Wigtown West | Richard Marsh | Conservative and Unionist | Independent / Other |
| 31 May 25 | Dumfries and Galloway | Stranraer and the Rhins | Chrissie Hill | Conservative and Unionist | Independent / Other |
| 31 May 25 | Dumfries and Galloway | Stranraer and the Rhins | Andrew Giusti | Conservative and Unionist | Independent / Other |
| 31 May 25 | Lewes | Newhaven North | Corina Watts | Vacant | Liberal Democrats |
| 31 May 25 | Maldon | Maldon West | Sarah Dodsley | Vacant | Liberal Democrats |
| 30 May 25 | Carmarthenshire | Llangennech | Gary Jones | Labour Party | Vacant |
| 30 May 25 | Dumfries and Galloway | Mid and Upper Nithsdale | Andrew Wood | Conservative and Unionist | Independent / Other |
| 30 May 25 | Hartlepool | Throston | Steve Wallace | Independent / Other | Vacant |
| 30 May 25 | Surrey | Woking South | Will Forster | Liberal Democrats | Vacant |
| 30 May 25 | Woking | Hoe Valley | Will Forster | Liberal Democrats | Vacant |
| 29 May 25 | Derby | Alvaston North | Alan Graves | Reform Derby | Reform UK |
| 28 May 25 | Dartford | Maypole & Leyton Cross | Kyle Stealey | Conservative and Unionist | Vacant |
| 28 May 25 | Dartford | Stone House | Tom Oliver | Conservative and Unionist | Vacant |
| 28 May 25 | Hounslow | Chiswick Gunnersbury | Ranjit Gill | Conservative and Unionist | Labour Party |
| 28 May 25 | Newham | Green Street West | Lewis Godfrey | Labour Party | Independent / Other |
| 27 May 25 | Halton | Daresbury, Moore & Sandymoor | Sian Davidson | Conservative and Unionist | Reform UK |
| 27 May 25 | Worthing | Heene | Luke Houghton | Conservative and Unionist | Reform UK |
| 26 May 25 | Bath and North East Somerset | Mendip | David Wood | Liberal Democrats | Vacant |
| 25 May 25 | Rochford | Sweyne Park and Grange | Vilma Wilson | Rochford District Residents | Liberal Democrats |
| 23 May 25 | Eastleigh | Hedge End South | John Shepherd | Vacant | Liberal Democrats |
| 23 May 25 | Rotherham | Keppel | Carole Foster | Labour Party | Vacant |
| 23 May 25 | Sutton | Carshalton South & Clockhouse | Lisa Webster | Vacant | Liberal Democrats |
| 23 May 25 | West Sussex | Horsham Riverside | Louise Potter | Vacant | Liberal Democrats |
| 22 May 25 | Aberdeenshire | East Garioch | Dominic Lonchay | Independent / Other | Reform UK |
| 22 May 25 | Bassetlaw | Ranskill | David Bamford | Conservative and Unionist | Vacant |
| 22 May 25 | Bolsover | Bolsover East | Anne Clarke | Labour Party | Independent / Other |
| 22 May 25 | Bolsover | Shirebrook North | Jen Wilson | Labour Party | Independent / Other |
| 22 May 25 | Breckland | Watton | Tina Kiddell | Independent / Other | Reform UK |
| 22 May 25 | East Lindsey | Grimoldby | Terry Knowles | Independent / Other | Reform UK |
| 22 May 25 | East Lindsey | St Clement's | Mark Dannatt | Skegness urban district society | Reform UK |
| 22 May 25 | East Lindsey | Scarbrough & Seacroft | Billy Brookes | Skegness urban district society | Independent / Other |
| 22 May 25 | East Lindsey | St Clement's | Richard Cunnington | Skegness urban district society | East Lindsey Independent Group |
| 21 May 25 | Bassetlaw | Worksop North East | Fraser Merryweather | Labour Party | Independent / Other |
| 21 May 25 | Bolsover | Elmton-with-Creswell | Rita Turner | Labour Party | Independent / Other |
| 21 May 25 | Bolsover | Langwith | Steve Fritchley | Labour Party | Independent / Other |
| 21 May 25 | Bolsover | Shirebrook South | Janet Tait | Labour Party | Independent / Other |
| 21 May 25 | East Suffolk | Kelsale & Yoxford | Julia Ewart | Liberal Democrats | Independent / Other |
| 21 May 25 | North Tyneside | Killingworth | Pat Oliver | Labour Party | Vacant |
| 21 May 25 | North Tyneside | Longbenton & Benton | Karen Clark | Labour Party | Vacant |
| 21 May 25 | Rushmoor | Knellwood | Calum Stewart | Conservative and Unionist | Independent / Other |
| 21 May 25 | Vale of White Horse | Botley & Sunningwell | Debby Hallett | Liberal Democrats | Vacant |
| 21 May 25 | West Lancashire | Old Skelmersdale | Neil Furey | Independent / Other | Our West Lancashire |
| 21 May 25 | West Lindsey | Scotter and Blyton | Karen Carless | Liberal Democrats | Consensus |
| 20 May 25 | Hertfordshire | Letchworth North | Tina Bhartwas | Labour Party | Liberal Democrats |
| 20 May 25 | North Hertfordshire | Letchworth Norton | Tina Bhartwas | Labour Party | Liberal Democrats |
| 20 May 25 | Reigate and Banstead | Lower Kingswood, Tadworth & Walton | Rod Ashford | Conservative and Unionist | Independent / Other |
| 20 May 25 | South Kesteven | Stamford St George's | Rhea Rayside | Liberal Democrats | Independent / Other |
| 20 May 25 | Surrey | Hinchley Wood, Claygate and Oxshott | Mark Sugden | Conservative and Unionist | Vacant |
| 19 May 25 | Breckland | Attleborough Burgh & Haverscroft | Stephen Fraser | Conservative and Unionist | Independent / Other |
| 19 May 25 | Cardiff | Llanrumney | Keith Jones | Labour Party | Independent / Other |
| 19 May 25 | Powys | Llanidloes | Gareth Morgan | Liberal Democrats | Vacant |
| 19 May 25 | Sevenoaks | Dunton Green and Riverhead | Kim Bayley | Conservative and Unionist | Independent / Other |
| 18 May 25 | Nottingham | Mapperley | Kirsty L Jones | Labour Party | Independent / Other |
| 16 May 25 | Barnet | Whetstone | Ezra Cohen | Vacant | Labour Party |
| 16 May 25 | Broadland | Acle | Jimmi Lee | Vacant | Reform UK |
| 16 May 25 | Cherwell | Bicester East | Donna Ford | Conservative and Unionist | Independent / Other |
| 16 May 25 | Dorset | Swanage | Bill Trite | Conservative and Unionist | Vacant |
| 16 May 25 | East Devon | Honiton St Michael's | Violet Bonetta | Labour Party | Independent / Other |
| 16 May 25 | East Sussex | Seaford North | Sam Adeniji | Conservative and Unionist | Independent / Other |
| 16 May 25 | Medway | Strood North & Frindsbury | Stephen Hubbard | Independent / Other | Labour Party |
| 16 May 25 | Medway | Strood West | Satinder Shokar | Independent / Other | Labour Party |
| 16 May 25 | Newark and Sherwood | Collingham | Linda Dales | Independent / Other | Conservative and Unionist |
| 16 May 25 | Sevenoaks | Edenbridge North and East | Angela Baker | Conservative and Unionist | Independent / Other |
| 16 May 25 | Sevenoaks | Westerham and Crockham Hill | Diana Esler | Conservative and Unionist | Independent / Other |
| 16 May 25 | Sevenoaks | Kemsing | Chris Haslam | Conservative and Unionist | Independent / Other |
| 16 May 25 | Sevenoaks | Edenbridge South and West | Alan Layland | Conservative and Unionist | Independent / Other |
| 16 May 25 | Sevenoaks | Edenbridge South and West | Margot McArthur | Conservative and Unionist | Independent / Other |
| 16 May 25 | Sevenoaks | Kemsing | Simon Reay | Conservative and Unionist | Independent / Other |
| 16 May 25 | Sevenoaks | Seal and Weald | Julia Thornton | Conservative and Unionist | Independent / Other |
| 16 May 25 | Sevenoaks | Halstead, Knockholt and Badgers Mount | John Grint | Conservative and Unionist | Independent / Other |
| 16 May 25 | Stoke-on-Trent | Birches Head & Northwood | Luke Shenton | Vacant | Reform UK |
| 16 May 25 | West Dunbartonshire | Clydebank Waterfront | Kevin Crawford | Vacant | Scottish National Party (SNP) |
| 16 May 25 | West Lancashire | Ormskirk East | Nikki Hennessy | Labour Party | Independent / Other |
| 16 May 25 | Wolverhampton | Tettenhall Wightwick | Wendy Thompson | Independent / Other | Conservative and Unionist |
| 15 May 25 | Chorley | Buckshaw & Whittle | Samantha Martin | Labour Party | Vacant |
| 15 May 25 | Dudley | Gornal | Stuart Turner | Labour Party | Independent / Other |
| 15 May 25 | Hammersmith and Fulham | Fulham Town | Andrew Dinsmore | Conservative and Unionist | Vacant |
| 15 May 25 | Plymouth | Compton | Dylan Tippetts | Independent / Other | Liberal Democrats |
| 15 May 25 | Solihull | Bickenhill | Alison Rolf | Conservative and Unionist | Independent / Other |
| 15 May 25 | Solihull | Silhill | Michael Gough | Conservative and Unionist | Independent / Other |
| 15 May 25 | Solihull | St Alphege | Samantha Gethen | Conservative and Unionist | Independent / Other |
| 15 May 25 | Staffordshire | Eccleshall & Gnosall | Wayne Titley | Reform UK | Vacant |
| 15 May 25 | Wealden | Horam & Punnetts Town | Cornelie Usborne | Green Party (E&W) | Vacant |
| 14 May 25 | Aberdeenshire | East Garioch | Dominic Lonchay | Conservative and Unionist | Independent / Other |
| 14 May 25 | Flintshire | Connah's Quay: Wepre | Roz Mansell | Independent / Other | Flintshire People's Voice |
| 14 May 25 | Harborough | Lutterworth East | Martin Sarfas | Independent / Other | Reform UK |
| 14 May 25 | Harborough | Broughton Astley South & Leire | Mark Graves | Liberal Democrats | Independent / Other |
| 14 May 25 | High Peak | Cote Heath | Kev Kirkham | Conservative and Unionist | Reform UK |
| 14 May 25 | North Hertfordshire | Baldock West | Emma Rowe | Labour Party | Independent / Other |
| 14 May 25 | Nottingham | Mapperley | Sajid Mohammed | Independent / Other | Labour Party |
| 14 May 25 | Oadby and Wigston | Wigston St Wolstan's | Frank Broadley | Liberal Democrats | Independent / Other |
| 14 May 25 | Oadby and Wigston | Wigston St Wolstan's | Linda Broadley | Liberal Democrats | Independent / Other |
| 14 May 25 | Redditch | Batchley & Brockhill | Wanda King | Labour Party | Independent / Other |
| 14 May 25 | Sefton | Blundellsands | Natasha Carlin | Independent / Other | Vacant |
| 14 May 25 | Stroud | Berkeley Vale | Paul Turner | Conservative and Unionist | Independent / Other |
| 13 May 25 | Blaby | Fosse Normanton | Maggie Wright | Conservative and Unionist | Independent / Other |
| 13 May 25 | Buckinghamshire | Buckingham | Robin Stuchbury | Labour Party | Independent / Other |
| 13 May 25 | Durham | Chester-le-Street South | Paul Sexton | Independent / Other | Reform UK |
| 13 May 25 | Durham | Benfieldside | Andrew Kilburn | Reform UK | Vacant |
| 13 May 25 | Greenwich | Shooters Hill | Ivis Williams | Labour Party | Vacant |
| 13 May 25 | Leeds | Pudsey | Trish Smith | Independent / Other | Reform UK |
| 13 May 25 | North Norfolk | Happisburgh | Luke Paterson | Conservative and Unionist | Independent / Other |
| 13 May 25 | Plymouth | Southway | Carol Ney | Labour Party | Independent / Other |
| 13 May 25 | Plymouth | Honicknowle | Zoe Reilly | Labour Party | Independent / Other |
| 13 May 25 | Salford | Swinton & Wardley | Bill Hinds | Labour Party | Independent / Other |
| 13 May 25 | Sheffield | Woodhouse | Willis Marshall | Liberal Democrats | Independent / Other |
| 13 May 25 | Wirral | Heswall | Graham Davies | Conservative and Unionist | Independent / Other |
| 13 May 25 | Wirral | Heswall | Kathy Hodson | Conservative and Unionist | Independent / Other |
| 13 May 25 | Wirral | Heswall | Andrew Hodson | Conservative and Unionist | Independent / Other |
| 09 May 25 | Arun | Arundel & Walberton | Stephen McAuliffe | Green Party (E&W) | Independent / Other |
| 09 May 25 | Burnley | Gannow | Charlie Briggs | Independent / Other | Liberal Democrats |
| 09 May 25 | Calderdale | Skircoat | Paul Hawkaluk | Vacant | Reform UK |
| 09 May 25 | Central Bedfordshire | Houghton Regis East | Pat Hamill | Independent / Other | Reform UK |
| 09 May 25 | Denbighshire | Prestatyn Central | Hugh Irving | Conservative and Unionist | Vacant |
| 09 May 25 | Derbyshire Dales | Bakewell | Gareth Gee | Conservative and Unionist | Independent / Other |
| 09 May 25 | Derbyshire Dales | Dovedale, Parwich & Brassington | Nigel Edwards-Walker | Conservative and Unionist | Independent / Other |
| 09 May 25 | Dover | Walmer | Derek Murphy | Conservative and Unionist | Independent / Other |
| 09 May 25 | Eastleigh | Eastleigh Central | Mark Harding | Vacant | Liberal Democrats |
| 09 May 25 | Hartlepool | Hart | Rob Darby | Conservative and Unionist | Reform UK |
| 09 May 25 | Hertsmere | Borehamwood Hillside | Alpha Collins | Labour Party | Independent / Other |
| 09 May 25 | Plymouth | Compton | Dylan Tippetts | Labour Party | Independent / Other |
| 09 May 25 | Rother | Catsfield & Crowhurst | Chas Pearce | Liberal Democrats | Vacant |
| 09 May 25 | Sheffield | Stocksbridge and Upper Don | Julie Grocutt | Independent / Other | Vacant |
| 09 May 25 | South Ayrshire | Girvan and South Carrick | Gavin Scott | Conservative and Unionist | Independent / Other |
| 09 May 25 | South Ayrshire | Maybole, North Carrick and Coylton | Iain Campbell | Conservative and Unionist | Independent / Other |
| 09 May 25 | South Ayrshire | Ayr East | Mary Kilpatrick | Conservative and Unionist | Independent / Other |
| 09 May 25 | Spelthorne | Ashford Town | Olivia Rybinski | Conservative and Unionist | Vacant |
| 09 May 25 | Walsall | Willenhall North | Stacie Elson | Conservative and Unionist | Independent / Other |
| 09 May 25 | Welwyn Hatfield | Hatfield East | Larry Crofton | Labour Party | Green Party (E&W) |
| 09 May 25 | Wyre | Jubilee | Wayne Martin | Labour Party | Independent / Other |
| 08 May 25 | Aberdeenshire | Ellon and District | John Crawley | Conservative and Unionist | Reform UK |
| 08 May 25 | Nottinghamshire | Newark West | Desmond Clarke | Reform UK | Vacant |
| 08 May 25 | Warwickshire | Galley Common | Luke Shingler | Reform UK | Independent / Other |
| 07 May 25 | Cumberland | Cockermouth North | Helen Tucker | Labour Party | Green Party (E&W) |
| 07 May 25 | North Kesteven | Sleaford Holdingham | Robert Oates | Lincolnshire Independents Lincolnshire First | Conservative and Unionist |
| 07 May 25 | North Kesteven | Ashby de la Launde, Digby & Scopwick | Amelia Bailey | Independent / Other | Reform UK |
| 07 May 25 | North Kesteven | Hykeham Memorial | Nikki Dillon | Independent / Other | Reform UK |
| 07 May 25 | Stevenage | Bedwell | Conor McGrath | Independent / Other | Vacant |
| 06 May 25 | Elmbridge | Weybridge St George's Hill | Pippa Graeme | Weybridge & St. George's Independents | Liberal Democrats |
| 06 May 25 | Fife | St Andrews | Robin Lawson | Conservative and Unionist | Independent / Other |
| 06 May 25 | Hartlepool | Rossmere | Tom Feeney | Labour Party | Independent / Other |
| 06 May 25 | Thanet | Cliftonville East | Barry Manners | Conservative and Unionist | Independent / Other |
| 06 May 25 | Welwyn Hatfield | Welwyn West | Sunny Thusu | Independent / Other | Conservative and Unionist |
| 05 May 25 | Amber Valley | Heanor West & Loscoe | Steven Bower | Labour Party | Independent / Other |
| 05 May 25 | Peterborough | Fletton and Woodston | Daisy Blakemore-Creedon | Labour Party | Independent / Other |
| 05 May 25 | Shropshire | Hodnet | Donna Edmunds | Reform UK | Independent / Other |
| 04 May 25 | Harborough | Market Harborough-Logan | Barbara Johnson | Liberal Democrats | Vacant |
| 02 May 25 | King's Lynn and West Norfolk | North Lynn | Micaela Bartrum | Independent / Other | Vacant |
| 02 May 25 | North Yorkshire | Eastfield | Tony Randerson | Social Justice Party | Vacant |
