| Years Served | Party | Prime Minister | % Correct |
|---|---|---|---|
| 2024 - Present | Social Democratic Alliance | Kristrún Frostadóttir | 100%
|
| 1961 | Independence | Bjarni Benediktsson | 80%
|
| 1963 - 1970 | Independence | Bjarni Benediktsson | 80%
|
| 2017 | Independence | Bjarni Benediktsson | 80%
|
| 2024 | Independence | Bjarni Benediktsson | 80%
|
| 1909 - 1911 | Independence | Björn Jónsson | 80%
|
| 1958 - 1959 | Social Democratic | Emil Jónsson | 80%
|
| 2006 - 2009 | Independence | Geir Haarde | 80%
|
| 2009 - 2013 | Social Democratic Alliance | Jóhanna Sigurðardóttir | 80%
|
| 2017 - 2024 | Left-Green Movement | Katrín Jakobsdóttir | 80%
|
| 1911 - 1912 | Independent | Kristján Jónsson | 80%
|
| 2016 - 2017 | Progressive | Sigurður Ingi Jóhannsson | 80%
|
| 1991 - 2004 | Independence | Davíð Oddsson | 60%
|
| 1942 | Independence | Ólafur Thors | 60%
|
| 1944 - 1947 | Independence | Ólafur Thors | 60%
|
| 1953 - 1956 | Independence | Ólafur Thors | 60%
|
| 1959 - 1961 | Independence | Ólafur Thors | 60%
|
| 1962 - 1963 | Independence | Ólafur Thors | 60%
|
| 2013 - 2016 | Progressive | Sigmundur Davíð Gunnlaugsson | 60%
|
| 1974 - 1978 | Independence | Geir Hallgrímsson | 40%
|
| 2004 - 2006 | Progressive | Halldór Ásgrímsson | 40%
|
| 1926 | Conservative | Magnús Guðmundsson | 40%
|
| 1932 - 1934 | Progressive | Ásgeir Ásgeirsson | 20%
|
| 1987 - 1988 | Independence | Þorsteinn Pálsson | 20%
|
| 1979 - 1980 | Social Democratic | Benedikt Gröndal | 0%
|
| 1942 - 1944 | Independent | Björn Þórðarson | 0%
|
| 1915 - 1917 | Independence | Einar Arnórsson | 0%
|
| 1980 - 1983 | Independence | Gunnar Thoroddsen | 0%
|
| 1904 - 1909 | Home Rule | Hannes Hafstein | 0%
|
| 1912 - 1914 | Union | Hannes Hafstein | 0%
|
| 1934 - 1942 | Progressive | Hermann Jónasson | 0%
|
| 1956 - 1958 | Progressive | Hermann Jónasson | 0%
|
| 1970 - 1971 | Independence | Jóhann Hafstein | 0%
|
| 1917 - 1922 | Home Rule | Jón Magnússon | 0%
|
| 1924 - 1926 | Conservative | Jón Magnússon | 0%
|
| 1926 - 1927 | Conservative | Jón Þorláksson | 0%
|
| 1971 - 1974 | Progressive | Ólafur Jóhannesson | 0%
|
| 1978 - 1979 | Progressive | Ólafur Jóhannesson | 0%
|
| 1914 - 1915 | Independence | Sigurður Eggerz | 0%
|
| 1922 - 1924 | Independence | Sigurður Eggerz | 0%
|
| 1947 - 1949 | Social Democratuc | Stefán Jóhann Stefánsson | 0%
|
| 1983 - 1987 | Progressive | Steingrímur Hermannsson | 0%
|
| 1988 - 1991 | Progressive | Steingrímur Hermannsson | 0%
|
| 1949 - 1950 | Independence | Steingrímur Steinþórsson | 0%
|
| 1927 - 1932 | Progressive | Tryggvi Þórhallsson | 0%
|