| Name | Party | Ward | End of Term |
|---|
| Nick Bennett | Conservative and Unionist | Arlington East Hoathly and Hellingly | 2021 |
| Kathryn Field | Liberal Democrats | Battle and Crowhurst | 2021 |
| Charles Clark | Independent / Other | Bexhill East | 2021 |
| Michael Ensor | Conservative and Unionist | Bexhill North | 2021 |
| Simon Elford | Conservative and Unionist | Bexhill South | 2021 |
| Deirdre Earl-Williams | Independent / Other | Bexhill West | 2021 |
| Carl Maynard | Conservative and Unionist | Brede Valley and Marsham | 2021 |
| Jim Sheppard | Conservative and Unionist | Chailey | 2021 |
| Richard Stogdon | Conservative and Unionist | Crowborough North and Jarvis Brook | 2021 |
| Sylvia Tidy | Conservative and Unionist | Crowborough St. Johns | 2021 |
| Steve Wallis | Liberal Democrats | Eastbourne Devonshire | 2021 |
| Colin Swansborough | Liberal Democrats | Eastbourne Hampden Park | 2021 |
| Alan Shuttleworth | Liberal Democrats | Eastbourne Langney | 2021 |
| Barry Taylor | Conservative and Unionist | Eastbourne Meads | 2021 |
| John Ungar | Liberal Democrats | Eastbourne Old Town | 2021 |
| Colin Belsey | Conservative and Unionist | Eastbourne Ratton | 2021 |
| David Elkin | Conservative and Unionist | Eastbourne Sovereign | 2021 |
| David Tutt | Liberal Democrats | Eastbourne St Anthony's | 2021 |
| Pat Rodohan | Liberal Democrats | Eastbourne Upperton | 2021 |
| Francis Whetstone | Conservative and Unionist | Forest Row and Groombridge | 2021 |
| Bob Bowdler | Conservative and Unionist | Hailsham Market | 2021 |
| Gerard Fox | Conservative and Unionist | Hailsham New Town | 2021 |
| Peter Pragnell | Conservative and Unionist | Hastings Ashdown and Conquest | 2021 |
| Laurie Loe | Conservative and Unionist | Hastings Baird and Ore | 2021 |
| Godfrey Daniel | Labour Party | Hastings Braybrooke and Castle | 2021 |
| Trevor Webb | Labour Party | Hastings Central St Leonards and Gensing | 2021 |
| Phil Scott | Labour Party | Hastings Hollington and Wishing Tree | 2021 |
| Matthew Beaver | Conservative and Unionist | Hastings Maze Hill and West St Leonards | 2021 |
| Tania Charman | Labour Party | Hastings Old Hastings and Tressell | 2021 |
| Martin Clarke | Conservative and Unionist | Hastings St Helens and Silverhill | 2021 |
| Rupert Simmons | Conservative and Unionist | Heathfield and Mayfield | 2021 |
| Ruth O'Keeffe MBE | Independent / Other | Lewes | 2021 |
| Roy Galley | Conservative and Unionist | Maresfield and Buxted | 2021 |
| Darren Grover | Liberal Democrats | Newhaven and Bishopstone | 2021 |
| Angharad Davies | Conservative and Unionist | Northern Rother | 2021 |
| Sarah Osborne | Liberal Democrats | Ouse Valley West and Downs | 2021 |
| Nigel Enever | Conservative and Unionist | Peacehaven | 2021 |
| Tom Liddiard | Conservative and Unionist | Pevensey and Stone Cross | 2021 |
| Daniel Shing | Independent / Other | Polegate and Watermill | 2021 |
| Philip Daniel | Liberal Democrats | Ringmer and Lewes Bridge | 2021 |
| John Barnes MBE | Conservative and Unionist | Rother North West | 2021 |
| Keith Glazier | Conservative and Unionist | Rye and Eastern Rother | 2021 |
| Phil Boorman | Conservative and Unionist | Seaford North | 2021 |
| Carolyn Lambert | Liberal Democrats | Seaford South | 2021 |
| Andy Smith | Conservative and Unionist | Telscombe | 2021 |
| Claire Dowling | Conservative and Unionist | Uckfield North | 2021 |
| Chris Dowling | Conservative and Unionist | Uckfield South with Framfield | 2021 |
| Bill Bentley | Conservative and Unionist | Wealden East | 2021 |
| Bob Standley | Conservative and Unionist | Wealden North East | 2021 |
| Stephen Shing | Independent / Other | Willingdon and South Downs | 2021 |