| Name | Party | Ward | End of Term |
|---|
| Mark Slater | Green Party (E&W) | Chailey, Barcombe & Hamsey | 2027 |
| Joa Saunders | Green Party (E&W) | Chailey, Barcombe & Hamsey | 2027 |
| Paul Mellor | Liberal Democrats | Ditchling & Westmeston | 2027 |
| Laurence O'Connor | Labour Party | East Saltdean & Telscombe Cliffs | 2027 |
| Ian Alexander | Labour Party | East Saltdean & Telscombe Cliffs | 2027 |
| Christine Robinson | Labour Party | East Saltdean & Telscombe Cliffs | 2027 |
| Stella Spiteri | Liberal Democrats | Kingston | 2027 |
| Janet Baah | Liberal Democrats | Lewes Bridge | 2027 |
| Zoe Nicholson | Green Party (E&W) | Lewes Bridge | 2027 |
| Nick Kortalla-Bird | Green Party (E&W) | Lewes Castle | 2027 |
| Wendy Maples | Green Party (E&W) | Lewes Castle | 2027 |
| Paul Keene | Green Party (E&W) | Lewes Priory | 2027 |
| Graham Clews | Green Party (E&W) | Lewes Priory | 2027 |
| Imogen Makepeace | Independent / Other | Lewes Priory | 2027 |
| Vacant | Vacant | Newhaven North | 2027 |
| Julie Carr | Liberal Democrats | Newhaven North | 2027 |
| James MacCleary | Liberal Democrats | Newhaven South | 2027 |
| Christoph von Kurthy | Liberal Democrats | Newhaven South | 2027 |
| Graham Amy | Liberal Democrats | Newhaven South | 2027 |
| Charlotte Keenan | Green Party (E&W) | Newick | 2027 |
| Johnny Denis | Green Party (E&W) | Ouse Valley & Ringmer | 2027 |
| Emily O'Brien | Green Party (E&W) | Ouse Valley & Ringmer | 2027 |
| Lucy Agace | Green Party (E&W) | Ouse Valley & Ringmer | 2027 |
| Paul Davies | Labour Party | Peacehaven East | 2027 |
| Cathy Gallagher | Labour Party | Peacehaven East | 2027 |
| Isobel Sharkey | Labour Party | Peacehaven North | 2027 |
| Ciarron Clarkson | Independent / Other | Peacehaven North | 2027 |
| Nikki Fabry | Labour Party | Peacehaven West | 2027 |
| Chris Collier | Labour Party | Peacehaven West | 2027 |
| Daniel Stewart-Roberts | Liberal Democrats | Plumpton, Streat, East Chiltington & St John | 2027 |
| Stephen Gauntlett | Liberal Democrats | Seaford Central | 2027 |
| Freddie Hoareau | Liberal Democrats | Seaford Central | 2027 |
| Ezra Cohen | Green Party (E&W) | Seaford East | 2027 |
| Becky Francomb | Green Party (E&W) | Seaford East | 2027 |
| Roy Clay | Green Party (E&W) | Seaford North | 2027 |
| James Meek | Green Party (E&W) | Seaford North | 2027 |
| Christine Brett | Liberal Democrats | Seaford South | 2027 |
| Olivia Honeyman | Liberal Democrats | Seaford South | 2027 |
| Lesley Boniface | Liberal Democrats | Seaford West | 2027 |
| Christina Bristow | Liberal Democrats | Seaford West | 2027 |
| Sue Morris | Green Party (E&W) | Wivelsfield | 2027 |
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