.
| S | D | M | C | F | B | P | |||
|---|---|---|---|---|---|---|---|---|---|
| 2026-04-01 – 2026-04-29 | Gallup / RÚV | 28 5% | 21 4% | 18 9% | 10 6% | 5 2% | 5 4% | 2% | (8 0%) |
| 2026-03-25 – 2026-04-16 | Maskína / Vísir | 27 7% | 18 1% | 16 4% | 12 8% | 5 8% | 7 2% | 4 7% | (7 3%) |
| 2026-03-02 – 2026-03-31 | Gallup / RÚV | 24% | 15 6% | 16 5% | 8% | 4 6% | 3 7% | 2 4% | (25 2%) |
| 2026-02-26 – 2026-03-19 | Maskína / Vísir | 23 2% | 14 7% | 16 8% | 13 1% | 5 3% | 4 3% | 4 6% | (18 0%) |
| 2026-02-02 – 2026-03-01 | Gallup / RÚV | 28 5% | 18 1% | 20 3% | 10 9% | 5 8% | 6 6% | 2 7% | (7 1%) |
| 2026-02-01 – 2026-02-27 | Maskína / Vísir | 27 2% | 16 2% | 19% | 13 4% | 4 8% | 7% | 5 2% | (7 2%) |
| 2026-01-21 – 2026-02-16 | Prósent / Morgunblaðið | 30 1% | 13 7% | 19 6% | 13 5% | 7 7% | 5 9% | 3 6% | (5 9%) |
| 2026-01 | Gallup / RÚV | 31 2% | 17 1% | 20 8% | 11 3% | 5 3% | 5 4% | 3 4% | (5 5%) |
| 2026-01 | Gallup / RÚV | 31 2% | 17 1% | 20 8% | 11 3% | 5 3% | 5 4% | 3 4% | (5 5%) |
| 2025-11-03 – 2025-11-30 | Gallup / RÚV | 31 1% | 16 5% | 19 5% | 12 8% | 5 2% | 5 6% | 3 3% | (6 0%) |
| 464 | 464 | 3 826 | |
| 2009 | 8 | 8 | 44 |
| 2010 | — | — | — |
| 2011 | — | — | — |
| 2012 | 25 | 25 | 186 |
| 2013 | 33 | 33 | 284 |
| 2014 | 15 | 15 | 90 |
| 2015 | 27 | 27 | 162 |
| 2016 | 59 | 59 | 401 |
| 2017 | 50 | 50 | 418 |
| 2018 | 28 | 28 | 230 |
| 2019 | 31 | 31 | 277 |
| 2020 | 28 | 28 | 251 |
| 2021 | 41 | 41 | 369 |
| 2022 | 25 | 25 | 225 |
| 2023 | 26 | 26 | 234 |
| 2024 | 38 | 38 | 372 |
| 2025 | 21 | 21 | 201 |
| 2026 | 9 | 9 | 82 |