| 94th Legislature (2025 - ) | Thomas S. Bottern |
| 93rd Legislature (2023 - 2024) | Thomas S. Bottern |
| 92nd Legislature (2021 - 2022) | Cal R. Ludeman |
| 91st Legislature (2019 - 2020) | Cal R. Ludeman |
| 90th Legislature (2017 - 2018) | Cal R. Ludeman |
| 89th Legislature (2015 - 2016) | JoAnne M. Zoff |
| 88th Legislature (2013 - 2014) | JoAnne M. Zoff |
| 87th Legislature (2011 - 2012) | Cal R. Ludeman |
| 86th Legislature (2009 - 2010) | Peter S. Wattson / JoAnne M. Zoff |
| 85th Legislature (2007 - 2008) | Patrick E. Flahaven |
| 84th Legislature (2005 - 2006) | Patrick E. Flahaven |
| 83rd Legislature (2003 - 2004) | Patrick E. Flahaven |
| 82nd Legislature (2001 - 2002) | Patrick E. Flahaven |
| 81st Legislature (1999 - 2000) | Patrick E. Flahaven |
| 80th Legislature (1997 - 1998) | Patrick E. Flahaven |
| 79th Legislature (1995 - 1996) | Patrick E. Flahaven |
| 78th Legislature (1993 - 1994) | Patrick E. Flahaven |
| 77th Legislature (1991 - 1992) | Patrick E. Flahaven |
| 76th Legislature (1989 - 1990) | Patrick E. Flahaven |
| 75th Legislature (1987 - 1988) | Patrick E. Flahaven |
| 74th Legislature (1985 - 1986) | Patrick E. Flahaven |
| 73rd Legislature (1983 - 1984) | Patrick E. Flahaven |
| 72nd Legislature (1981 - 1982) | Patrick E. Flahaven |
| 71st Legislature (1979 - 1980) | Patrick E. Flahaven |
| 70th Legislature (1977 - 1978) | Patrick E. Flahaven |
| 69th Legislature (1975 - 1976) | Patrick E. Flahaven |
| 68th Legislature (1973 - 1974) | Patrick E. Flahaven |
| 67th Legislature (1971 - 1972) | George G. Goodwin |
| 66th Legislature (1969 - 1970) | Herbert Y. Torrey |
| 65th Legislature (1967 - 1968) | Herbert Y. Torrey |
| 64th Legislature (1965 - 1966) | Herbert Y. Torrey |
| 63rd Legislature (1963 - 1964) | Herbert Y. Torrey |
| 62nd Legislature (1961 - 1962) | Herbert Y. Torrey |
| 61st Legislature (1959 - 1960) | Herbert Y. Torrey |
| 60th Legislature (1957 - 1958) | Herbert Y. Torrey |
| 59th Legislature (1955 - 1956) | Herbert Y. Torrey |
| 58th Legislature (1953 - 1954) | Herbert Y. Torrey |
| 57th Legislature (1951 - 1952) | Herbert Y. Torrey |
| 56th Legislature (1949 - 1950) | Herbert Y. Torrey |
| 55th Legislature (1947 - 1948) | Herbert Y. Torrey |
| 54th Legislature (1945 - 1946) | Herbert Y. Torrey |
| 53rd Legislature (1943 - 1944) | Herbert Y. Torrey |
| 52nd Legislature (1941 - 1942) | Herbert Y. Torrey |
| 51st Legislature (1939 - 1940) | George Howard Spaeth |
| 50th Legislature (1937 - 1938) | George Howard Spaeth |
| 49th Legislature (1935 - 1936) | George Howard Spaeth |
| 48th Legislature (1933 - 1934) | George Howard Spaeth |
| 47th Legislature (1931 - 1932) | George Howard Spaeth |
| 46th Legislature (1929 - 1930) | George Howard Spaeth |
| 45th Legislature (1927 - 1928) | George W. Peachey |
| 44th Legislature (1925 - 1926) | George W. Peachey |
| 43rd Legislature (1923 - 1924) | George W. Peachey |
| 42nd Legislature (1921 - 1922) | George W. Peachey |
| 41st Legislature (1919 - 1920) | George W. Peachey |
| 40th Legislature (1917 - 1918) | George W. Peachey |
| 39th Legislature (1915 - 1916) | George W. Peachey |
| 38th Legislature (1913 - 1914) | George W. Peachey |
| 37th Legislature (1911 - 1912) | George W. Peachey |
| 36th Legislature (1909 - 1910) | George W. Peachey |
| 35th Legislature (1907 - 1908) | Samuel A. Langum |
| 34th Legislature (1905 - 1906) | Samuel A. Langum |
| 33rd Legislature (1903 - 1904) | Samuel A. Langum |
| 32nd Legislature (1901 - 1902) | Samuel A. Langum |
| 31st Legislature (1899 - 1900) | Samuel A. Langum |
| 30th Legislature (1897 - 1898) | Samuel A. Langum |
| 29th Legislature (1895 - 1896) | Samuel A. Langum |
| 28th Legislature (1893 - 1894) | Ed. H. Folsom |
| 27th Legislature (1891 - 1892) | Fred N. N. Van Duzee |
| 26th Legislature (1889 - 1890) | O. L. Cutter |
| 25th Legislature (1887 - 1888) | O. L. Cutter |
| 24th Legislature (1885 - 1886) | John D. Jones |
| 23rd Legislature (1883 - 1884) | Charles W Johnson |
| 22nd Legislature (1881 - 1882) | S. P. Jennison |
| 21st Legislature (1879 - 1880) | Charles W Johnson |
| 20th Legislature (1878) | Charles W Johnson |
| 19th Legislature (1877) | Charles W Johnson |
| 18th Legislature (1876) | Charles W Johnson |
| 17th Legislature (1875) | Charles W Johnson |
| 16th Legislature (1874) | Charles W Johnson |
| 15th Legislature (1873) | A. A. Harwood |
| 14th Legislature (1872) | A. A. Harwood |
| 13th Legislature (1871) | F. E. Snow |
| 12th Legislature (1870) | F. E. Snow |
| 11th Legislature (1869) | F. E. Snow |
| 10th Legislature (1868) | Alfred B. Webber |
| 9th Legislature (1867) | George Potter Wilson |
| 8th Legislature (1866) | George Potter Wilson |
| 7th Legislature (1865) | Eli B. Ames |
| 6th Legislature (1864) | Eli B. Ames |
| 5th Legislature (1863) | Eli B. Ames |
| 4th Legislature (1862) | Frederick Driscoll |
| 3rd Legislature (1861) | Alfred B. Webber |
| 2nd Legislature (1859 - 1860) | Alfred B. Webber |
| 1st Legislature (1857 - 1858) | Andrew C. Dunn |
| 8th Territorial Legislature (1857 - ) | L. Smith |
| 7th Territorial Legislature (1856 - ) | William J. Colvill, Jr. |
| 6th Territorial Legislature (1855 - ) | Andrew J. Morgan |
| 5th Territorial Legislature (1854 - ) | James B. Dixon |
| 4th Territorial Legislature (1853 - ) | A. T. C. Pierson |
| 3rd Territorial Legislature (1852 - ) | Henry L. Tilden |
| 2nd Territorial Legislature (1851 - ) | Joseph R. Brown |
| 1st Territorial Legislature (1849 - 1850) | Joseph R. Brown |