| S | D | C | M | F | B | P | |||
|---|---|---|---|---|---|---|---|---|---|
| 2025-09-01 – 2025-09-30 | Gallup / RÚV | 34% | 19 5% | 12 6% | 11 8% | 6 9% | 5 8% | 2 9% | (6 5%) |
| 2025-09-04 – 2025-09-19 | Maskína | 31 9% | 18 6% | 14 3% | 9 1% | 6 3% | 6 3% | 5 8% | (7 7%) |
| 2025-08-01 – 2025-08-31 | Gallup / RÚV | 34 6% | 19 7% | 12 9% | 10 7% | 7 4% | 4 5% | 3 5% | (6 7%) |
| – 2025-08-21 | Maskína / Vísir | 31 6% | 18 6% | 16 1% | 9 6% | 6 3% | 6 3% | 4 5% | (7 0%) |
| 2025-07-01 – 2025-07-31 | Gallup / RÚV | 34 7% | 18 7% | 14 6% | 10 5% | 6 7% | 4 9% | 3 5% | (6 4%) |
| 2025-07-04 – 2025-07-23 | Maskína / Vísir | 31 2% | 18% | 16 2% | 9 9% | 6 6% | 6 8% | 5% | (6 3%) |
| 2025-06-02 – 2025-06-30 | Gallup / RÚV | 31 8% | 20 6% | 13 7% | 10 7% | 6 5% | 5 6% | 4 1% | (7 0%) |
| – 2025-06-22 | Maskína | 28 1% | 17 3% | 15 3% | 13 0% | 6 6% | 7 0% | 4 6% | (8 1%) |
| 2025-05-01 – 2025-06-01 | Gallup / RÚV | 30 7% | 21 7% | 14 4% | 9 1% | 7 5% | 5 5% | 3 3% | (7 8%) |
| – 2025-05-22 | Maskína | 27 4% | 18 9% | 16 8% | 9 7% | 7 2% | 6 8% | 4 6% | (8 6%) |