Westminster Voting Intention
| End Date | Company | Client | CON | LAB | LD | GRN | Lead |
| 12 Jun 2020 | YouGov Online | The Times | 45 | 37 | 6 | 4 | +8 |
| 12 Jun 2020 | Opinium Online | The Observer | 44 | 39 | 6 | 2 | +5 |
| 11 Jun 2020 | Redfield & Wilton Online | 41 | 39 | 9 | 4 | +2 | |
| 10 Jun 2020 | Survation Online | 42 | 36 | 8 | 4 | +6 | |
| 10 Jun 2020 | Ipsos MORI Online | Evening Standard | 43 | 38 | 10 | 1 | +5 |
| 05 Jun 2020 | Deltapoll Online | The Mail on Sunday | 41 | 38 | 8 | 4 | +3 |
| 05 Jun 2020 | Opinium Online | The Observer | 43 | 40 | 6 | 3 | +3 |
| 03 Jun 2020 | Redfield & Wilton Online | 43 | 36 | 9 | 5 | +7 | |
| 03 Jun 2020 | Survation Online | 41 | 39 | 7 | 4 | +2 | |
| 30 May 2020 | YouGov Online | The Times | 45 | 35 | 6 | 5 | +10 |
| 29 May 2020 | Opinium Online | The Observer | 43 | 39 | 6 | 3 | +4 |
| 28 May 2020 | Deltapoll Online | The Mail on Sunday | 43 | 38 | 8 | 4 | +5 |
| 27 May 2020 | Redfield & Wilton Online | 43 | 37 | 9 | 3 | +6 | |
| 27 May 2020 | YouGov Online | DatapraxisEU | 43 | 38 | 6 | 4 | +5 |
| 26 May 2020 | YouGov Online | The Times | 44 | 38 | 6 | 4 | +6 |
| 26 May 2020 | Survation Online | 46 | 33 | 8 | 4 | +13 | |
| 22 May 2020 | Opinium Online | The Observer | 47 | 35 | 6 | 3 | +12 |
| 19 May 2020 | YouGov Online | The Times | 48 | 33 | 6 | 5 | +15 |
| 17 May 2020 | Savanta ComRes Online | 46 | 33 | 7 | 4 | +13 | |
| 15 May 2020 | Redfield & Wilton Online | 47 | 35 | 9 | 3 | +12 | |
| 14 May 2020 | Opinium Online | The Observer | 49 | 34 | 6 | 3 | +15 |
| 11 May 2020 | Kantar Public Online | 51 | 32 | 7 | 2 | +19 | |
| 07 May 2020 | Opinium Online | The Observer | 49 | 33 | 6 | 5 | +16 |
| 06 May 2020 | Redfield & Wilton Online | 50 | 31 | 7 | 5 | +19 | |
| 06 May 2020 | YouGov Online | The Times | 50 | 30 | 7 | 5 | +20 |
| 01 May 2020 | Opinium Online | The Observer | 51 | 33 | 6 | 3 | +18 |
| 28 Apr 2020 | Survation Online | 48 | 31 | 8 | 5 | +17 | |
| 26 Apr 2020 | Redfield & Wilton Online | 50 | 33 | 7 | 4 | +17 | |
| 23 Apr 2020 | Opinium Online | The Observer | 50 | 33 | 7 | 3 | +17 |
| 20 Apr 2020 | Kantar Public Online | 54 | 28 | 9 | 4 | +26 | |
| 17 Apr 2020 | Redfield & Wilton Online | 52 | 31 | 8 | 3 | +21 | |
| 17 Apr 2020 | YouGov Online | The Times | 53 | 32 | 5 | 3 | +21 |
| 17 Apr 2020 | Opinium Online | The Observer | 51 | 32 | 6 | 3 | +19 |
| 09 Apr 2020 | BMG Online | The Independent | 46 | 29 | 10 | 6 | +17 |
| 09 Apr 2020 | Opinium Online | The Observer | 55 | 29 | 5 | 4 | +26 |
| 03 Apr 2020 | Opinium Online | The Observer | 53 | 30 | 7 | 3 | +23 |
| 02 Apr 2020 | YouGov Online | The Times | 52 | 28 | 8 | 5 | +24 |
| 02 Apr 2020 | Redfield & Wilton Online | 49 | 29 | 8 | 4 | +20 | |
| 27 Mar 2020 | Opinium Online | The Observer | 54 | 28 | 6 | 3 | +26 |
| 26 Mar 2020 | Number Cruncher Politics Online | Bloomberg | 54 | 28 | 7 | 4 | +26 |
| 23 Mar 2020 | Redfield & Wilton Online | 47 | 29 | 8 | 5 | +18 | |
| 20 Mar 2020 | Opinium Online | The Observer | 51 | 31 | 7 | 3 | +20 |
| 16 Mar 2020 | Ipsos MORI Online | Evening Standard | 52 | 30 | 9 | 4 | +22 |
| 13 Mar 2020 | Opinium Online | The Observer | 49 | 32 | 6 | 5 | +17 |
| 09 Mar 2020 | Kantar Public Online | 50 | 29 | 11 | 1 | +21 | |
| 06 Mar 2020 | BMG Online | The Independent | 45 | 28 | 11 | 6 | +17 |
| 20 Feb 2020 | Savanta ComRes Online | Sunday Express | 47 | 31 | 9 | 4 | +16 |
| 14 Feb 2020 | Opinium Online | The Observer | 47 | 32 | 7 | 4 | +15 |
| 12 Feb 2020 | Redfield & Wilton Online | 49 | 31 | 9 | 4 | +18 | |
| 10 Feb 2020 | YouGov Online | The Times | 48 | 28 | 10 | 6 | +20 |
| 07 Feb 2020 | BMG Online | The Independent | 41 | 29 | 11 | 8 | +12 |
| 03 Feb 2020 | Ipsos MORI Online | Evening Standard | 47 | 30 | 11 | 5 | +17 |
| 02 Feb 2020 | YouGov Online | The Times | 49 | 30 | 8 | 5 | +19 |
| 31 Jan 2020 | Survation Online | 44 | 33 | 10 | 3 | +11 | |
| 26 Jan 2020 | YouGov Online | The Times | 49 | 29 | 10 | 4 | +20 |
| 17 Jan 2020 | Opinium Online | The Observer | 47 | 30 | 9 | 4 | +17 |
| 10 Jan 2020 | BMG Online | The Independent | 44 | 29 | 11 | 5 | +15 |
| 11 Dec 2019 | Survation Phone | 45 | 34 | 9 | 3 | +11 | |
| 11 Dec 2019 | Panelbase Online | 43 | 34 | 11 | 3 | +9 | |
| 11 Dec 2019 | Opinium Online | 45 | 33 | 12 | 2 | +12 | |
| 11 Dec 2019 | Ipsos MORI Phone | 44 | 33 | 12 | 3 | +11 | |
| 11 Dec 2019 | Kantar Public Online | 44 | 32 | 13 | 3 | +12 | |
| 11 Dec 2019 | Deltapoll Online | 45 | 35 | 10 | 3 | +10 | |
| 11 Dec 2019 | BMG Online | 41 | 32 | 14 | 3 | +9 | |
| 10 Dec 2019 | Savanta ComRes Online | Telegraph | 41 | 36 | 12 | 2 | +5 |
| 10 Dec 2019 | Number Cruncher Politics Online | Bloomberg | 43 | 33 | 12 | 3 | +10 |
| 09 Dec 2019 | ICM Online | 42 | 36 | 12 | 2 | +6 | |
| 08 Dec 2019 | Savanta ComRes Online | Remain United | 43 | 36 | 12 | 2 | +7 |
| 07 Dec 2019 | Survation Phone | Good Morning Britain | 45 | 31 | 11 | 2 | +14 |
| 07 Dec 2019 | Deltapoll Online | Mail on Sunday | 44 | 33 | 11 | 2 | +11 |
| 06 Dec 2019 | YouGov Online | Sunday Times | 43 | 33 | 13 | 3 | +10 |
| 06 Dec 2019 | BMG Online | Independent | 41 | 32 | 14 | 4 | +9 |
| 06 Dec 2019 | Opinium Online | Observer | 46 | 31 | 13 | 3 | +15 |
| 06 Dec 2019 | Panelbase Online | 43 | 34 | 13 | 2 | +9 | |
| 05 Dec 2019 | Savanta ComRes Online | Sunday Telegraph | 41 | 33 | 12 | 2 | +8 |
| 05 Dec 2019 | Savanta ComRes Online | Remain United | 42 | 36 | 11 | 2 | +6 |
| 04 Dec 2019 | Ipsos MORI Phone | Evening Standard | 44 | 32 | 13 | 3 | +12 |
| 03 Dec 2019 | Savanta ComRes Online | Telegraph | 42 | 32 | 12 | 2 | +10 |
| 03 Dec 2019 | YouGov Online | Times/Sky | 42 | 33 | 12 | 4 | +9 |
| 02 Dec 2019 | ICM Online | 42 | 35 | 13 | 2 | +7 | |
| 02 Dec 2019 | Kantar Public Online | 44 | 32 | 15 | 3 | +12 | |
| 30 Nov 2019 | Deltapoll Online | Mail on Sunday | 45 | 32 | 15 | 1 | +13 |
| 30 Nov 2019 | Survation Phone | Good Morning Britain | 42 | 33 | 11 | 4 | +9 |
| 29 Nov 2019 | YouGov Online | Sunday Times | 43 | 34 | 13 | 3 | +9 |
| 29 Nov 2019 | Opinium Online | Observer | 46 | 31 | 13 | 3 | +15 |
| 29 Nov 2019 | BMG Online | Independent | 39 | 33 | 13 | 5 | +6 |
| 28 Nov 2019 | Savanta ComRes Online | Sunday Telegraph | 43 | 33 | 13 | 3 | +10 |
| 28 Nov 2019 | Panelbase Online | 42 | 34 | 13 | 3 | +8 | |
| 26 Nov 2019 | Savanta ComRes Online | Telegraph | 41 | 34 | 13 | 2 | +7 |
| 26 Nov 2019 | YouGov Online | Times/Sky | 43 | 32 | 13 | 2 | +11 |
| 25 Nov 2019 | ICM Online | 41 | 34 | 13 | 3 | +7 | |
| 25 Nov 2019 | Kantar Public Online | 43 | 32 | 14 | 4 | +11 | |
| 23 Nov 2019 | Deltapoll Online | Mail on Sunday | 43 | 30 | 16 | 3 | +13 |
| 23 Nov 2019 | Survation Phone | Good Morning Britain | 41 | 30 | 15 | 3 | +11 |
| 22 Nov 2019 | YouGov Online | Sunday Times | 42 | 30 | 16 | 4 | +12 |
| 22 Nov 2019 | Opinium Online | Observer | 47 | 28 | 12 | 3 | +19 |
| 22 Nov 2019 | Panelbase Online | 42 | 32 | 14 | 3 | +10 | |
| 21 Nov 2019 | Savanta ComRes Online | Sunday Telegraph | 42 | 32 | 15 | 2 | +10 |
| 21 Nov 2019 | BMG Online | Independent | 41 | 28 | 18 | 5 | +13 |
| 19 Nov 2019 | Savanta ComRes Online | Telegraph | 42 | 31 | 15 | 2 | +11 |