| Party | Name | Ward | End of Term | Byelection |
|---|
| CON | Leslie Puttock | Ashurst, Copythorne South and Netley Marsh | 02-05-2019 | - |
| CON | Derek Tipp | Ashurst, Copythorne South and Netley Marsh | 02-05-2019 | - |
| CON | Alan O'Sullivan | Barton | 02-05-2019 | - |
| CON | Goff Beck | Barton | 02-05-2019 | - |
| CON | Neil Tungate | Bashley | 02-05-2019 | - |
| CON | Geoffrey Blunden | Becton | 02-05-2019 | - |
| CON | Mrs Christine Ward | Becton | 02-05-2019 | - |
| CON | Colin Wise | Boldre and Sway | 02-05-2019 | - |
| CON | Barry Rickman | Boldre and Sway | 02-05-2019 | - |
| CON | Mrs Diane Andrews | Bramshaw, Copythorne North and Minstead | 02-05-2019 | - |
| IND | Richard Frampton | Bransgore and Burley | 02-05-2019 | - |
| CON | Mark Steele | Bransgore and Burley | 02-05-2019 | - |
| CON | Mrs Maureen Holding | Brockenhurst and Forest South East | 02-05-2019 | - |
| CON | Michael Harris | Brockenhurst and Forest South East | 02-05-2019 | - |
| CON | John Olliff-Cooper | Buckland | 02-05-2019 | - |
| CON | Peter Armstrong | Butts Ash and Dibden Purlieu | 02-05-2019 | - |
| CON | James Binns | Butts Ash and Dibden Purlieu | 02-05-2019 | - |
| CON | Dan Poole | Dibden and Hythe East | 02-05-2019 | - |
| CON | Bill Andrews | Dibden and Hythe East | 02-05-2019 | - |
| CON | Edward Heron | Downlands and Forest | 02-05-2019 | - |
| CON | Mervyn Langdale | Fawley, Blackfield and Langley | 02-05-2019 | - |
| CON | Mrs Alexis McEvoy, BSc | Fawley, Blackfield and Langley | 02-05-2019 | - |
| CON | John G Ward | Fernhill | 02-05-2019 | - |
| CON | Mrs Jill Cleary | Fernhill | 02-05-2019 | - |
| CON | Miss Ann Sevier | Fordingbridge | 02-05-2019 | - |
| CON | Mrs Roxy Matcham | Fordingbridge | 02-05-2019 | - |
| CON | Bill Dow | Forest North West | 02-05-2019 | - |
| CON | Ms Kate Crisell | Furzedown and Hardley | 02-05-2019 | - |
| CON | Alan Alvey | Holbury and North Blackfield | 02-05-2019 | - |
| CON | Allan Glass | Holbury and North Blackfield | 02-05-2019 | - |
| CON | Mrs Fran Carpenter | Hordle | 02-05-2019 | - |
| CON | Mrs Penny Lovelace | Hordle | 02-05-2019 | - |
| CON | Mrs Beverley Thorne | Hythe West and Langdown | 02-05-2019 | - |
| LD | Alex Wade | Hythe West and Langdown | 02-05-2019 | - |
| CON | Mrs Anna Rostand | Lymington Town | 02-05-2019 | - |
| CON | Alan Penson | Lymington Town | 02-05-2019 | - |
| CON | Mrs Pat Wyeth | Lyndhurst | 02-05-2019 | - |
| CON | Mrs Sue Bennison | Marchwood | 02-05-2019 | - |
| CON | Mrs Alison Hoare | Marchwood | 02-05-2019 | - |
| CON | Mrs Christine Hopkins | Milford | 02-05-2019 | - |
| CON | Melville Kendal | Milford | 02-05-2019 | - |
| CON | Steve Davies | Milton | 02-05-2019 | - |
| CON | Steve Clarke | Milton | 02-05-2019 | - |
| CON | Andrew Gossage | Pennington | 02-05-2019 | - |
| CON | Michael White | Pennington | 02-05-2019 | - |
| CON | Mrs Emma Lane | Ringwood East and Sopley | 02-05-2019 | - |
| CON | Michael Thierry | Ringwood North | 02-05-2019 | - |
| CON | Ms Christine Ford | Ringwood North | 02-05-2019 | - |
| CON | Steve Rippon-Swaine | Ringwood South | 02-05-2019 | - |
| CON | Jeremy Heron | Ringwood South | 02-05-2019 | - |
| CON | Mrs Louise Cerasoli | Totton Central | 02-05-2019 | - |
| VAC | Vacancy | Totton Central | 02-05-2019 | 02-05-2019 - CON |
| CON | Ian Coombes | Totton East | 02-05-2019 | - |
| CON | Arthur Davis | Totton East | 02-05-2019 | - |
| CON | Neville Penman | Totton North | 02-05-2019 | - |
| CON | Dean Britton | Totton North | 02-05-2019 | - |
| CON | Len Harris | Totton South | 02-05-2019 | - |
| LD | David Harrison | Totton South | 02-05-2019 | - |
| CON | David Russell | Totton West | 02-05-2019 | - |
| CON | Mrs Di Brooks | Totton West | 02-05-2019 | - |