Opinion polling for the 2021 Icelandic parliamentary election

In the run up to the 2021 Icelandic parliamentary election, various organisations carried out opinion polling to gauge voting intention in Iceland during the term of the Althing. This article lists the results of such polls. The date range for these opinion polls is from the previous election, held on 28 October 2017, to the present day.

The 2021 elections were to be held on 25 September 2021. By law, the election had to be held on or before 23 October 2021. In July 2020, Prime Minister Katrín Jakobsdóttir proposed the date 25 September as the election date. The date of the election was officially published on 12 August.

Polls are listed in reverse chronological order, showing the most recent first and using the dates when the survey fieldwork was done, as opposed to the date of publication. Where the fieldwork dates are unknown, the date of publication is given instead. The highest figure in each polling survey is displayed with its background shaded in the leading party's colour. If a tie ensues, this is applied to the highest figures. When a poll has no information on a certain party, that party is instead marked by a dash (–).

Graphical summary

D = Independence Party, V = Left-Green Movement, S = Social Democratic Alliance, M = Centre Party, B = Progressive Party, P = Pirate Party, F = People's Party, C = Viðreisn, J = Socialist Party.

Polls Polling firm Fieldwork date Samplesize D V S M B P F C J Others Lead 2021 parliamentary election 25 Sep 2021 – – 24.4 12.6 9.9 5.4 17.3 8.6 8.8 8.3 4.1 0.5 7.1 22–24 Sep 2021 5,836 21.4 10.5 13.8 5.5 15.4 10.2 6.2 10.1 6.1 0.8 6.0Gallup20—24 Sep 20214,809 23.412.012.66.814.98.86.49.25.30.6 8.5 22–23 Sep 2021 – 22.9 9.7 11.5 5.8 16.4 9.9 6.2 12.0 5.1 0.5 6.5 21–22 Sep 2021 909 – 21.8 11.0 13.9 4.7 14.3 10.7 7.3 10.1 6.0 0.2 7.5 Maskína 15–22 Sep 2021 20.6 11.5 11.7 7.1 13.4 11.3 5.6 11.4 6.6 0.8 7.2 Prósent 17–21 Sep 2021 2500 50 20.1 10.7 14.7 6.6 12.2 13.1 5.2 9.3 6.9 1.2 5.413–19 Sep 20213,845 21.210.212.76.213.211.57.010.27.30.5 8.0 15–17 Sep 2021 1,257 – 20.3 12.1 13.0 4.6 12.7 11.8 5.6 10.7 8.6 0.6 7.6 13–16 Sep 2021 1,493 – 21.3 10.0 14.2 5.9 12.6 11.5 4.7 11.6 7.7 0.5 7.1 8–13 Sep 2021 21.0 11.5 14.6 5.5 12.0 13.3 3.6 12.3 6.1 – 6.4Gallup30 Aug–12 Sep 20215,82851.1 22.011.811.07.612.911.04.99.97.81.1 10.2 8–10 Sep 2021 – – 22.3 10.5 11.6 6.0 15.0 9.9 5.0 12.2 6.7 0.8 7.3Gallup15—29 Aug 20214,32953.3 24.212.311.57.09.710.94.910.68.20.7 12.1 24 Aug 2021 – – 23.9 10.9 10.5 6.2 12.5 10.6 5.1 10.4 8.7 1.2 11.3 13–23 Aug 2021 822 23.4 14.2 13.0 5.1 12.6 9.9 4.2 10.7 6.9 – 8.829 July–15 August 20216,238 24.514.111.26.710.412.64.19.16.70.6 10.4Gallup30 June–28 July 20213,800 24.113.812.37.411.912.24.08.75.40.2 10.3 Maskína July 2021 20.9 14.1 13.7 5.5 9.9 12.7 4.2 12.3 6.3 – 6.8 15–23 Jul 2021 2,600 – 23.6 11.9 12.6 5.6 10.6 13.3 5.0 10.1 6.1 1.2 10.3 MMR 24 Jun–6 Jul 2021 2,041 – 25.4 11.9 10.6 6.6 12.3 12.2 5.5 9.1 5.3 1.2 12.1Gallup1–29 June 20218,12051.6 24.114.79.97.510.312.94.210.95.40.1 9.4 Maskína June 2021 23.8 15.0 12.4 5.0 11.4 11.6 4.2 12.3 4.3 – 8.8 MMR 4–14 June 2021 973 – 27.0 12.4 11.2 7.3 8.8 13.1 5.5 7.8 5.3 1.6 13.9 MMR 25 May–1 June 2021 951 – 24.6 11.1 10.9 6.5 12.5 13.5 2.8 11.0 5.6 1.6 11.1Gallup1–31 May 202111,77948.7 23.514.712.47.210.411.04.310.95.40.2 8.8 MMR 7–12 May 2021 953 – 25.6 13.1 10.9 5.7 12.6 11.3 3.3 10.6 5.7 1.2 12.5 MMR 21–28 April 2021 946 – 28.7 12.9 11.3 5.8 10.6 9.6 4.8 8.8 6.0 1.5 14.8GallupApr 2021 23.814.312.08.210.112.04.79.65.00.3 9.5 MMR 29 Mar–7 April 2021 940 – 23.1 10.1 15.4 6.9 11.5 13.2 4.7 10.0 4.0 1.0 7.7Gallup1-29 Mar 20219,85653.0 23.012.312.79.511.111.55.09.55.00.4 10.3 MMR 5–10 Mar 2021 951 – 21.0 11.7 13.8 9.3 12.7 11.5 5.1 10.0 3.8 1.0 7.2Gallup1-28 Feb 20219,07852.5 22.913.414.47.310.312.24.09.45.8 - 8.5 MMR 12–18 Feb 2021 919 – 22.2 13.5 13.1 8.0 11.4 11.4 3.6 10.6 4.1 2.0 8.7 Gallup 6–31 Jan 2021 9,019 51.4 22.7 12.8 16.6 8.0 9.5 11.1 3.9 11.7 3.8 – 6.1 MMR 30 Dec 2020–11 Jan 2021 2,002 - 24.4 10.9 15.6 8.6 9.1 12.3 4.9 8.8 4.4 1.0 8.8Gallup1 Dec 2020–3 Jan 2021 10,958 51.5 23.711.717.09.18.311.94.310.03.8– 6.7Zenter11–19 Dec 2020 2,500 52.8 22.910.215.66.77.317.04.710.23.32.1 5.9 MMR 26 Nov–3 Dec 2020 944 - 27.1 7.6 13.8 7.0 7.5 13.8 6.2 9.5 5.0 2.3 12.3Gallup2–30 Nov 2020 9,351 53.6 23.711.817.18.88.612.44.19.73.7– 6.6 MMR 6–11 Nov 2020 925 - 25.0 7.5 16.7 9.1 9.9 14.3 3.9 8.4 4.0 1.1 8.3Gallup30 Sep–1 Nov 2020 10,937 54.0 23.511.915.89.97.712.14.511.62.7– 7.7 MMR 23–28 Oct 2020 933 - 21.9 8.3 15.2 11.6 10.2 13.5 3.8 9.7 4.6 1.3 6.7Gallup1–30 Sep 2020 9,673 52.9 23.913.714.99.46.713.23.710.43.9– 9.0 Maskína 24–28 Sep 2020 879 22.7 10.4 17.9 5.9 7.8 15.7 5.5 14.0 – – 5.2 MMR 10–23 Sep 2020 2,043 - 25.6 8.5 12.8 10.8 8.3 15.0 3.6 9.4 4.3 1.7 10.6 MMR 26 Aug–2 Sep 2020 929 - 24.0 9.6 14.9 8.0 8.9 14.3 4.8 10.0 3.4 2.2 9.1Gallup4–31 Aug 20209,47951.922.812.614.79.97.913.73.610.63.90.3 8.1Gallup31 Jul 2020 - - 23.210.914.810.67.613.94.310.83.80.1 8.4 MMR 23–28 Jul 2020 951 - 24.0 10.8 13.1 8.4 8.6 15.4 4.0 8.4 5.1 2.1 8.6 Gallup 02–30 Jun 2020 10,274 51.7 24.0 13.6 14.9 10.2 8.6 10.7 3.6 10.5 3.8 0.1 9.1 MMR 16–19 Jun 2020 1,045 - 24.3 10.7 16.3 8.0 6.1 13.2 5.4 10.0 3.5 2.4 8.0 Gallup 4 May–1 Jun 2020 10,630 54.0 24.6 14.3 14.4 10.4 7.7 11.0 4.4 9.7 3.3 – 10.2 MMR 19–25 May 2020 994 - 23.5 10.6 13.3 10.8 6.4 14.6 3.6 11.3 4.1 1.7 8.9 Gallup 30 Mar–3 May 2020 11,028 55.7 25.1 13.8 13.8 9.9 8.4 10.4 4.4 10.0 4.0 – 11.3 MMR 15–17 Apr 2020 1,051 - 22.7 10.4 13.1 9.5 9.8 12.3 4.7 10.0 5.6 2.0 9.6 MMR 3–7 Apr 2020 987 - 23.5 12.3 14.1 10.7 8.8 12.2 3.4 9.6 3.4 2.1 9.4 Gallup 2–29 Mar 2020 10,352 54.8 23.5 13.3 15.1 11.2 8.1 10.2 4.2 11.1 3.2 – 8.4 MMR 18–20 Mar 2020 1,034 - 27.4 9.8 14.7 10.0 8.1 10.2 3.7 9.7 4.7 0.5 12.7 Gallup 3 Feb–1 Mar 2020 7,964 53.8 22.0 11.9 14.8 14.2 7.0 10.7 4.0 10.3 5.0 1.9 7.2 MMR 6–10 Feb 2020 1,003 - 22.0 10.7 15.1 13.3 6.8 10.4 4.6 9.7 5.3 2.1 6.9 Gallup 03 Jan–02 Feb 2020 8,678 51.8 21.6 10.5 17.7 12.5 7.8 11.5 4.2 10.3 3.4 – 3.9 MMR 28 Jan 2020 - - 19.0 8.7 16.6 15.1 7.2 10.6 3.8 12.4 4.9 1.9 2.4 MMR 3–13 Jan 2020 2,057 - 20.3 11.1 16.8 12.9 8.2 11.0 3.5 10.5 4.1 1.5 3.5 Gallup 2 Dec 2019–1 Jan 2020 8,511 52.8 22.7 10.7 13.9 12.7 8.6 11.3 4.3 12.0 3.3 – 8.8 MMR 13–19 Dec 2019 1,014 - 20.0 10.3 14.4 14.3 8.3 11.8 4.0 10.5 5.2 1.1 5.6 Gallup 28 Oct–1 Dec 2019 11,663 53.2 21.7 13.6 15.8 12.9 7.8 10.3 3.9 10.8 3.0 – 5.9 MMR 15–22 Nov 2019 1,061 - 18.1 10.6 13.2 16.8 9.4 10.8 6.3 9.7 3.0 2.2 1.3 Gallup 30 Sep–27 Oct 2019 9,798 - 22.7 13.4 17.3 11.5 8.2 9.0 4.6 10.3 2.6 – 5.4 MMR 21–25 Oct 2019 972 - 21.1 9.7 15.3 13.5 10.0 8.9 8.0 10.0 2.6 0.9 5.8 Zenter 10–14 Oct 2019 2,300 53 19.6 12.5 18.5 11.6 7.3 10.9 4.0 11.3 2.9 1.1 1.1 MMR 30 Sep–09 Oct 2019 2,124 - 19.8 10.3 14.1 14.8 10.1 8.8 5.6 11.0 3.1 2.4 5.0 Gallup 01–30 Sep 2019 - - 23.5 12.0 16.1 12.3 7.9 9.7 4.3 11.2 2.7 – 7.4 MMR 09–16 Sep 2019 1,045 - 18.3 12.8 14.8 12.0 11.8 12.4 4.0 10.2 2.0 1.6 3.5 Gallup 29 Jul–01 Sep 2019 8,423 47.2 21.7 12.8 15.5 13.4 8.3 9.3 3.8 11.4 3.7 - 6.2 MMR 12–19 Aug 2019 990 - 19.1 11.5 16.8 13.0 10.4 11.3 4.1 9.3 2.9 1.6 2.3 Gallup 01–31 Jul 2019 - - 21.6 12.0 13.7 12.1 8.5 12.7 3.7 12.2 3.2 – 7.9 Zenter 24–26 Jul 2019 2,000 45.0 20.5 12.9 14.4 13.4 8.2 12.3 3.2 10.6 2.7 1.9 6.1 MMR 04–17 Jul 2019 2,031 - 19.0 10.3 13.5 14.4 8.4 14.9 4.8 9.7 4.3 0.8 4.1 Gallup 31 May–30 Jun 2019 5,910 53.0 23.7 13.0 14.7 11.4 8.6 11.3 4.2 10.1 3.0 – 9.0 MMR 7–14 Jun 2019 988 – 22.1 11.3 14.4 10.6 7.7 14.4 4.2 9.5 4.4 1.3 7.7 Gallup 3–30 May 2019 6,125 53.5 23.4 12.4 16.6 10.0 8.5 11.2 3.2 10.9 3.7 0.1 6.8 MMR 23–29 May 2019 932 – 21.5 14.1 12.5 10.8 9.7 14.0 4.2 8.3 3.4 1.6 7.4 MMR 14–16 May 2019 978 – 21.3 12.2 13.9 11.8 11.6 9.8 6.4 8.4 3.2 1.4 7.4 MMR 30 Apr–3 May 2019 941 – 20.2 13.4 14.1 9.2 9.8 13.4 5.1 9.2 4.2 1.4 6.1 Gallup 5–30 Apr 2019 5,189 57.7 23.6 13.3 16.2 8.9 8.0 11.1 4.0 11.0 3.6 0.3 7.4 MMR 13 Apr 2019 – – 22.5 12.1 14.3 9.2 11.2 13.3 5.0 7.8 2.8 1.7 8.2 MMR 4–9 Apr 2019 926 – 21.7 10.4 13.9 10.2 8.7 15.0 5.4 9.0 4.5 1.2 6.7 Gallup 1–31 Mar 2019 6,705 55.4 25.0 11.6 15.9 9.0 9.0 11.6 3.7 10.3 3.5 0.4 9.1 MMR 11–14 Mar 2019 1,025 – 23.6 11.4 13.8 8.0 11.1 13.6 4.7 9.4 2.5 1.9 9.8 Gallup 31 Jan–28 Feb 2019 7,060 53.5 25.0 12.3 16.8 6.7 9.0 11.6 3.4 9.9 5.0 0.3 8.2 MMR 11–15 Feb 2019 934 – 22.7 11.1 15.9 6.1 13.5 10.4 6.9 8.1 3.6 1.5 6.8 Gallup 7–31 Jan 2019 4,241 54.4 23.4 11.3 19.1 6.5 8.8 12.7 3.7 9.1 5.3 0.1 4.3 MMR 28 Jan 2019 – – 21.8 12.2 15.5 8.3 12.6 12.0 5.4 9.2 – 3.1 6.3 MMR 4–14 Jan 2019 2,061 – 22.2 11.3 15.0 6.9 11.7 13.8 6.7 7.8 – 4.6 7.2 Gallup 3 Dec 2018–1 Jan 2019 4,899 58.0 22.7 11.6 18.4 5.7 11.4 10.7 5.3 10.5 3.4 0.3 4.3 MMR 5–11 Dec 2018 975 – 22.1 12.9 16.9 5.9 12.5 14.4 4.2 8.5 – 2.6 5.2 Zenter 3–4 Dec 2018 2,300 55 21.4 12.7 20.8 4.3 8.5 14.4 5.7 9.1 – 3.1 0.6 Maskína 30 Nov–3 Dec 2018 1,311 – 19.3 14.9 19.7 4.6 8.8 14.9 4.4 13.4 – – 0.4 Gallup 3 Nov–2 Dec 2018 5,319 58.3 23.5 10.5 18.7 12.0 7.5 10.2 6.2 9.8 1.3 0.3 4.8 MMR 21 Nov 2018 – – 21.1 10.3 16.3 13.1 7.5 11.3 7.6 8.6 – 4.2 4.8 MMR 8–12 Nov 2018 1,048 – 19.8 11.5 16.6 12.1 8.8 11.3 7.3 7.8 – 4.7 3.2 Gallup 2–31 Oct 2018 6,129 54.8 25.8 10.6 17.0 10.3 7.2 10.6 6.2 10.8 1.1 0.4 8.8 MMR 22 Oct 2018 – – 20.8 10.8 16.5 12.8 7.8 13.2 5.9 9.9 – 2.3 4.3 MMR 3–9 Oct 2018 921 – 20.8 10.9 16.7 11.9 8.9 12.7 6.1 8.6 – 3.2 4.1 Gallup 3 Sep–1 Oct 2018 5,460 53.3 24.6 10.3 19.3 9.8 6.6 11.5 5.9 10.7 0.9 0.4 5.3 MMR 7–12 Sep 2018 953 – 21.3 11.1 19.8 10.8 8.1 13.2 5.3 7.9 – 2.5 1.5 Gallup 2 Aug–2 Sep 2018 7,094 52.6 22.7 11.7 19.3 8.7 8.2 12.5 5.7 10.1 0.7 0.4 3.4 MMR 10 Aug 2018 – – 22.1 8.8 16.6 10.3 8.9 13.4 7.8 8.7 – 3.4 5.5 Gallup 29–30 Jul 2018 7,060 50.4 24.6 10.7 16.7 8.6 9.2 13.9 6.0 8.7 0.9 0.7 7.9 Gallup 31 May–1 Jul 2018 5,875 55.2 24.5 11.5 15.2 8.0 8.5 13.1 5.1 10.4 1.0 2.7 9.3 MMR 12–18 Jun 2018 925 – 21.6 12.7 15.1 10.6 9.5 14.3 8.2 5.8 – 2.2 6.5 Gallup 2–31 May 2018 7,113 56.6 23.8 13.3 17.9 8.5 8.9 13.3 4.1 8.4 – 1.8 5.9 MMR 16–22 May 2018 929 – 23.7 12.0 14.6 9.8 10.1 14.1 5.6 7.1 – 3.0 9.1 MMR 2 May 2018 – – 24.5 13.7 14.7 10.3 8.2 13.0 5.8 7.6 – 2.1 9.8 Gallup 27 Mar–29 Apr 2018 6,766 56.3 25.3 14.1 17.7 7.9 9.6 11.0 4.2 7.7 – 2.5 7.6 MMR 13–19 Apr 2018 910 – 23.9 14.3 13.6 8.8 7.3 15.3 6.9 7.0 – 2.8 8.6 Gallup 1–26 Mar 2018 5,423 57.0 24.5 13.9 16.5 8.7 9.2 12.5 4.9 8.4 – 1.4 8.0 MMR 19 Mar 2018 – – 25.3 14.8 16.1 10.7 9.0 13.2 3.6 6.0 – 1.4 9.2 MMR 12 Mar 2018 – – 21.9 16.1 15.9 9.7 8.8 13.8 5.7 6.1 – 2.0 5.8 Gallup 1–28 Feb 2018 5,564 55.3 23.5 16.6 15.3 8.6 9.3 11.9 5.9 6.8 – 2.2 6.9 Gallup 4–31 Jan 2018 5,606 53.8 25.5 16.9 16.1 6.8 9.5 10.7 5.5 7.3 – 1.7 8.6 MMR 25–30 Jan 2018 928 – 22.3 18.4 14.9 7.7 11.2 12.9 4.2 6.0 – 2.4 3.9 MMR 9–17 Jan 2018 1,594 – 25.8 15.0 13.9 6.9 11.2 12.2 6.1 6.2 – 2.6 10.8 Gallup 30 Nov–28 Dec 2017 7,001 55.2 25.1 17.3 15.5 5.8 11.9 10.1 5.4 6.5 – 2.4 7.8 MMR 12–15 Dec 2017 923 – 23.2 16.7 16.8 8.7 8.5 14.1 3.7 5.7 – 2.5 6.4 Fréttablaðið/Stöð 2/Vísir 4 Dec 2017 804 – 26.4 23.5 13.4 7.4 11.3 7.7 4.0 4.8 – 1.5 2.9 Gallup 8–30 Nov 2017 3,991 57.8 24.0 16.1 16.7 6.8 10.4 10.4 6.4 7.1 – 2.1 7.3 MMR 14–17 Nov 2017 944 – 24.4 13.0 16.0 10.5 9.5 9.9 8.4 6.5 – 1.8 8.4 2017 parliamentary election 28 Oct 2017 – – 25.2 16.9 12.1 10.9 10.7 9.2 6.9 6.7 – 1.5 8.4

Notes

References