| Name | Party | Ward | End of Term |
|---|
| Matthew Bedford | Liberal Democrats | Abbots Langley & Bedmond | 06 May 21 |
| Sara Bedford | Liberal Democrats | Abbots Langley & Bedmond | 05 May 22 |
| David Major | Liberal Democrats | Abbots Langley & Bedmond | 04 May 23 |
| Donna Duncan | Conservative and Unionist | Carpenders Park | 05 May 22 |
| Michael Revan | Conservative and Unionist | Carpenders Park | 06 May 21 |
| Shanti Maru | Conservative and Unionist | Carpenders Park | 04 May 23 |
| Marilyn Butler | Conservative and Unionist | Chorleywood North & Sarratt | 06 May 21 |
| Alex Hayward | Conservative and Unionist | Chorleywood North & Sarratt | 05 May 22 |
| Alison Wall | Conservative and Unionist | Chorleywood North & Sarratt | 04 May 23 |
| Raj Khiroya | Liberal Democrats | Chorleywood South & Maple Cross | 04 May 23 |
| Phil Williams | Liberal Democrats | Chorleywood South & Maple Cross | 06 May 21 |
| Martin Trevett | Liberal Democrats | Chorleywood South & Maple Cross | 05 May 22 |
| Dominic Sokalski | Liberal Democrats | Dickinsons | 04 May 23 |
| Margaret Hofman | Liberal Democrats | Dickinsons | 05 May 22 |
| Peter Getkahn | Liberal Democrats | Dickinsons | 06 May 21 |
| Steve Drury | Liberal Democrats | Durrants | 05 May 22 |
| Chris Lloyd | Liberal Democrats | Durrants | 06 May 21 |
| Stephanie Singer | Liberal Democrats | Durrants | 04 May 23 |
| Joy Mann | Independent / Other | Gade Valley | 06 May 21 |
| Jon Tankard | Liberal Democrats | Gade Valley | 05 May 22 |
| Alex Michaels | Independent / Other | Gade Valley | 04 May 23 |
| Alex Turner | Liberal Democrats | Leavesden | 05 May 22 |
| Stephen Giles-Medhurst | Liberal Democrats | Leavesden | 06 May 21 |
| Kate Turner | Liberal Democrats | Leavesden | 04 May 23 |
| Joanna Clemens | Independent / Other | Moor Park & Eastbury | 05 May 22 |
| Debbie Morris | Conservative and Unionist | Moor Park & Eastbury | 06 May 21 |
| Reena Ranger OBE | Conservative and Unionist | Moor Park & Eastbury | 04 May 23 |
| Keith Martin | Liberal Democrats | Oxhey Hall & Hayling | 04 May 23 |
| Alison Scarth | Liberal Democrats | Oxhey Hall & Hayling | 05 May 22 |
| Andrew Scarth | Liberal Democrats | Oxhey Hall & Hayling | 06 May 21 |
| Tony Humphreys | Liberal Democrats | Penn & Mill End | 04 May 23 |
| Sarah Nelmes | Liberal Democrats | Penn & Mill End | 05 May 22 |
| Roger Seabourne | Liberal Democrats | Penn & Mill End | 06 May 21 |
| Paula Hiscocks | Conservative and Unionist | Rickmansworth Town | 05 May 22 |
| David Raw | Conservative and Unionist | Rickmansworth Town | 04 May 23 |
| David Sansom | Conservative and Unionist | Rickmansworth Town | 06 May 21 |
| Stephen Cox | Labour Party | South Oxhey | 04 May 23 |
| Joan King | Labour Party | South Oxhey | 06 May 21 |
| Stephen King | Labour Party | South Oxhey | 05 May 22 |