Best Prime Minister: YouGov
| End Date | Company | Client | CON | LAB | OTH | DK | Lead |
| 14 Apr 2021 | YouGov Online | 34 | 26 | 36 | +2 | ||
| 08 Apr 2021 | YouGov Online | 35 | 29 | 32 | +3 | ||
| 01 Apr 2021 | YouGov Online | 35 | 29 | 33 | +2 | ||
| 26 Mar 2021 | YouGov Online | 37 | 27 | 34 | +3 | ||
| 19 Mar 2021 | YouGov Online | 35 | 29 | 33 | +2 | ||
| 10 Mar 2021 | YouGov Online | 34 | 29 | 35 | +1 | ||
| 04 Mar 2021 | YouGov Online | 36 | 28 | 33 | +3 | ||
| 26 Feb 2021 | YouGov Online | 35 | 31 | 34 | +1 | ||
| 18 Feb 2021 | YouGov Online | 34 | 30 | 32 | +2 | ||
| 10 Feb 2021 | YouGov Online | 33 | 31 | 34 | +1 | ||
| 03 Feb 2021 | YouGov Online | 33 | 33 | 30 | Tie | ||
| 27 Jan 2021 | YouGov Online | 29 | 34 | 34 | Tie | ||
| 22 Jan 2021 | YouGov Online | 31 | 33 | 32 | +1 | ||
| 14 Jan 2021 | YouGov Online | 29 | 34 | 34 | Tie | ||
| 05 Jan 2021 | YouGov Online | 30 | 35 | 32 | +3 | ||
| 16 Dec 2020 | YouGov Online | 30 | 35 | 33 | +2 | ||
| 03 Dec 2020 | YouGov Online | 29 | 33 | 35 | +2 | ||
| 27 Nov 2020 | YouGov Online | 29 | 34 | 35 | +1 | ||
| 18 Nov 2020 | YouGov Online | 29 | 34 | 34 | Tie | ||
| 12 Nov 2020 | YouGov Online | 28 | 34 | 36 | +2 | ||
| 05 Nov 2020 | YouGov Online | 26 | 36 | 36 | Tie | ||
| 22 Oct 2020 | YouGov Online | 29 | 35 | 33 | +2 | ||
| 15 Oct 2020 | YouGov Online | 29 | 35 | 33 | +2 | ||
| 07 Oct 2020 | YouGov Online | 29 | 33 | 35 | +2 | ||
| 30 Sep 2020 | YouGov Online | 27 | 36 | 35 | +1 | ||
| 24 Sep 2020 | YouGov Online | 30 | 37 | 30 | +7 | ||
| 17 Sep 2020 | YouGov Online | 30 | 35 | 31 | +4 | ||
| 04 Sep 2020 | YouGov Online | 31 | 34 | 31 | +3 | ||
| 25 Aug 2020 | YouGov Online | 30 | 33 | 34 | +1 | ||
| 19 Aug 2020 | YouGov Online | 31 | 35 | 31 | +4 | ||
| 12 Aug 2020 | YouGov Online | 32 | 32 | 32 | Tie | ||
| 05 Aug 2020 | YouGov Online | 32 | 34 | 31 | +2 | ||
| 12 Jun 2020 | YouGov Online | 33 | 33 | 31 | Tie | ||
| 30 May 2020 | YouGov Online | 37 | 32 | 28 | +5 | ||
| 19 May 2020 | YouGov Online | 39 | 27 | 29 | +10 | ||
| 17 Apr 2020 | YouGov Online | 46 | 22 | 28 | +18 | ||
| 12 Nov 2019 | YouGov Online | Times | 44 | 22 | 34 | +10 | |
| 21 Oct 2019 | YouGov Online | Times | 43 | 20 | 34 | +9 | |
| 15 Oct 2019 | YouGov Online | Times | 43 | 21 | 32 | +11 | |
| 09 Oct 2019 | YouGov Online | Times | 41 | 21 | 34 | +7 | |
| 01 Oct 2019 | YouGov Online | Times | 40 | 22 | 35 | +5 | |
| 18 Sep 2019 | YouGov Online | Times | 38 | 22 | 36 | +2 | |
| 28 Aug 2019 | YouGov Online | Times | 40 | 20 | 36 | +4 | |
| 06 Aug 2019 | YouGov Online | Times | 39 | 19 | 37 | +2 | |
| 30 Jul 2019 | YouGov Online | Times | 42 | 21 | 34 | +8 | |
| 24 Jul 2019 | YouGov Online | Times | 38 | 20 | 38 | 3 | Tie |
| 22 Jul 2019 | YouGov Online | Times | 34 | 20 | 42 | 4 | +8 |
| 03 Apr 2019 | YouGov Online | 29 | 20 | 47 | +18 | ||
| 25 Mar 2019 | YouGov Online | Times | 31 | 19 | 46 | +15 | |
| 23 Feb 2019 | YouGov Online | Times | 39 | 16 | 42 | +3 | |
| 04 Feb 2019 | YouGov Online | Times | 40 | 19 | 39 | +1 | |
| 14 Jan 2019 | YouGov Online | Times | 36 | 20 | 41 | +5 | |
| 07 Jan 2019 | YouGov Online | Times | 38 | 20 | 38 | Tie | |
| 01 Oct 2018 | YouGov Online | Times | 34 | 23 | 39 | +5 | |
| 19 Sep 2018 | YouGov Online | Times | 36 | 23 | 39 | +3 | |
| 13 Sep 2018 | YouGov Online | Times | 36 | 23 | 39 | +3 | |
| 04 Sep 2018 | YouGov Online | Times | 34 | 25 | 38 | +4 | |
| 29 Aug 2018 | YouGov Online | Times | 35 | 23 | 39 | +4 | |
| 21 Aug 2018 | YouGov Online | Times | 36 | 23 | 42 | +6 | |
| 14 Aug 2018 | YouGov Online | 35 | 24 | 41 | +6 | ||
| 09 Aug 2018 | YouGov Online | Times | 36 | 22 | 39 | +3 | |
| 31 Jul 2018 | YouGov Online | Times | 32 | 25 | 40 | +8 | |
| 23 Jul 2018 | YouGov Online | Times | 32 | 26 | 39 | +7 | |
| 17 Jul 2018 | YouGov Online | Times | 33 | 25 | 38 | +5 | |
| 09 Jul 2018 | YouGov Online | Times | 34 | 27 | 36 | +2 | |
| 04 Jul 2018 | YouGov Online | Times | 35 | 25 | 37 | +2 | |
| 26 Jun 2018 | YouGov Online | Times | 38 | 26 | 34 | +4 | |
| 19 Jun 2018 | YouGov Online | Times | 38 | 26 | 34 | +4 | |
| 12 Jun 2018 | YouGov Online | Times | 39 | 24 | 37 | +2 | |
| 05 Jun 2018 | YouGov Online | Times | 37 | 24 | 37 | Tie | |
| 29 May 2018 | YouGov Online | Times | 38 | 27 | 35 | +3 | |
| 21 May 2018 | YouGov Online | Times | 37 | 27 | 35 | +2 | |
| 14 May 2018 | YouGov Online | Times | 40 | 25 | 35 | +5 | |
| 09 May 2018 | YouGov Online | Times | 39 | 25 | 36 | +3 | |
| 01 May 2018 | YouGov Online | Times | 37 | 27 | 36 | +1 | |
| 17 Apr 2018 | YouGov Online | Times | 39 | 25 | 35 | +4 | |
| 10 Apr 2018 | YouGov Online | Times | 37 | 26 | 37 | Tie | |
| 05 Apr 2018 | YouGov Online | Times | 39 | 26 | 35 | +4 | |
| 27 Mar 2018 | YouGov Online | Times | 38 | 27 | 35 | +3 | |
| 06 Mar 2018 | YouGov Online | Times | 36 | 29 | 35 | +1 | |
| 27 Feb 2018 | YouGov Online | Times | 36 | 30 | 33 | +3 | |
| 20 Feb 2018 | YouGov Online | Times | 36 | 29 | 35 | +1 | |
| 13 Feb 2018 | YouGov Online | Times | 36 | 29 | 35 | +1 | |
| 06 Feb 2018 | YouGov Online | Times | 37 | 29 | 33 | +4 | |
| 29 Jan 2018 | YouGov Online | Times | 35 | 29 | 36 | +1 | |
| 17 Jan 2018 | YouGov Online | Times | 36 | 31 | 33 | +3 | |
| 08 Jan 2018 | YouGov Online | Times | 37 | 31 | 31 | +6 | |
| 20 Dec 2017 | YouGov Online | Times | 37 | 31 | 32 | +5 | |
| 10 Dec 2017 | YouGov Online | Times | 37 | 28 | 35 | +2 | |
| 05 Dec 2017 | YouGov Online | Times | 34 | 30 | 36 | +2 | |
| 08 Nov 2017 | YouGov Online | Times | 34 | 31 | 35 | +1 | |
| 11 Oct 2017 | YouGov Online | Times | 33 | 33 | 35 | +2 | |
| 05 Oct 2017 | YouGov Online | Times | 36 | 33 | 32 | +3 | |
| 24 Sep 2017 | YouGov Online | Times | 37 | 29 | 33 | +4 | |
| 31 Aug 2017 | YouGov Online | Times | 37 | 32 | 31 | +5 | |
| 22 Aug 2017 | YouGov Online | Times | 37 | 33 | 31 | +4 | |
| 01 Aug 2017 | YouGov Online | Times | 37 | 32 | 30 | +5 | |
| 19 Jul 2017 | YouGov Online | Times | 37 | 32 | 30 | +5 | |
| 11 Jul 2017 | YouGov Online | Times | 38 | 33 | 29 | +5 | |
| 22 Jun 2017 | YouGov Online | Times | 34 | 35 | 30 | +1 |