# List of United States senators from Arizona

Arizona was admitted to the Union on February 14, 1912. U.S. senators from Arizona belong to class 1 and class 3 and are popularly elected for a six-year term beginning January 3. Elections are held the first Tuesday after the first Monday in November. The state's current U.S. senators are Democrats Mark Kelly, serving since 2020, and Ruben Gallego, serving since 2025. Carl Hayden was the longest serving senator, served from 1927 to 1969. In total, only 15 individuals have ever served as a Senator from Arizona.

## List of senators

| Class 1Class 1 U.S. senators belong to the electoral cycle that has recently been contested in 2006, 2012, 2018, and 2024. The next election will be in 2030. | Class 1Class 1 U.S. senators belong to the electoral cycle that has recently been contested in 2006, 2012, 2018, and 2024. The next election will be in 2030. | Class 1Class 1 U.S. senators belong to the electoral cycle that has recently been contested in 2006, 2012, 2018, and 2024. The next election will be in 2030. | Class 1Class 1 U.S. senators belong to the electoral cycle that has recently been contested in 2006, 2012, 2018, and 2024. The next election will be in 2030. | Class 1Class 1 U.S. senators belong to the electoral cycle that has recently been contested in 2006, 2012, 2018, and 2024. The next election will be in 2030. | Class 1Class 1 U.S. senators belong to the electoral cycle that has recently been contested in 2006, 2012, 2018, and 2024. The next election will be in 2030. | C | Class 3Class 3 U.S. senators belong to the electoral cycle that has recently been contested in 2010, 2016, 2020 (special election), and 2022. The next election will be in 2028. | Class 3Class 3 U.S. senators belong to the electoral cycle that has recently been contested in 2010, 2016, 2020 (special election), and 2022. The next election will be in 2028. | Class 3Class 3 U.S. senators belong to the electoral cycle that has recently been contested in 2010, 2016, 2020 (special election), and 2022. The next election will be in 2028. | Class 3Class 3 U.S. senators belong to the electoral cycle that has recently been contested in 2010, 2016, 2020 (special election), and 2022. The next election will be in 2028. | Class 3Class 3 U.S. senators belong to the electoral cycle that has recently been contested in 2010, 2016, 2020 (special election), and 2022. The next election will be in 2028. | Class 3Class 3 U.S. senators belong to the electoral cycle that has recently been contested in 2010, 2016, 2020 (special election), and 2022. The next election will be in 2028. |
| # | Senator | Party | Dates in office | Electoral history | T | C | T | Electoral history | Dates in office | Party | Senator | # |
| Vacant | Vacant | Vacant | Feb 14, 1912 – Mar 27, 1912 | Arizona became a state February 14, 1912, but did not elect its U.S. senators until March 27. | 1 | 62nd | 1 | Arizona became a state February 14, 1912, but did not elect its U.S. senators until March 27. | Feb 14, 1912 – Mar 27, 1912 | Vacant | Vacant | Vacant |
| 1 | Henry F. Ashurst | Democratic | Mar 27, 1912 – Jan 3, 1941 | Elected in 1912. | 1 | 62nd | 1 | Elected in 1912. | Mar 27, 1912 – Mar 3, 1921 | Democratic | Marcus A. Smith | 1 |
| 1 | Henry F. Ashurst | Democratic | Mar 27, 1912 – Jan 3, 1941 | Elected in 1912. | 1 | 63rd | 1 | Elected in 1912. | Mar 27, 1912 – Mar 3, 1921 | Democratic | Marcus A. Smith | 1 |
| 1 | Henry F. Ashurst | Democratic | Mar 27, 1912 – Jan 3, 1941 | Elected in 1912. | 1 | 64th | 2 | Re-elected in 1914.Lost re-election. | Mar 27, 1912 – Mar 3, 1921 | Democratic | Marcus A. Smith | 1 |
| 1 | Henry F. Ashurst | Democratic | Mar 27, 1912 – Jan 3, 1941 | Re-elected in 1916. | 2 | 65th | 2 | Re-elected in 1914.Lost re-election. | Mar 27, 1912 – Mar 3, 1921 | Democratic | Marcus A. Smith | 1 |
| 1 | Henry F. Ashurst | Democratic | Mar 27, 1912 – Jan 3, 1941 | Re-elected in 1916. | 2 | 66th | 2 | Re-elected in 1914.Lost re-election. | Mar 27, 1912 – Mar 3, 1921 | Democratic | Marcus A. Smith | 1 |
| 1 | Henry F. Ashurst | Democratic | Mar 27, 1912 – Jan 3, 1941 | Re-elected in 1916. | 2 | 67th | 3 | Elected in 1920.Lost re-election. | Mar 4, 1921 – Mar 3, 1927 | Republican | Ralph H. Cameron | 2 |
| 1 | Henry F. Ashurst | Democratic | Mar 27, 1912 – Jan 3, 1941 | Re-elected in 1922. | 3 | 68th | 3 | Elected in 1920.Lost re-election. | Mar 4, 1921 – Mar 3, 1927 | Republican | Ralph H. Cameron | 2 |
| 1 | Henry F. Ashurst | Democratic | Mar 27, 1912 – Jan 3, 1941 | Re-elected in 1922. | 3 | 69th | 3 | Elected in 1920.Lost re-election. | Mar 4, 1921 – Mar 3, 1927 | Republican | Ralph H. Cameron | 2 |
| 1 | Henry F. Ashurst | Democratic | Mar 27, 1912 – Jan 3, 1941 | Re-elected in 1922. | 3 | 70th | 4 | Elected in 1926. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 1 | Henry F. Ashurst | Democratic | Mar 27, 1912 – Jan 3, 1941 | Re-elected in 1928. | 4 | 71st | 4 | Elected in 1926. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 1 | Henry F. Ashurst | Democratic | Mar 27, 1912 – Jan 3, 1941 | Re-elected in 1928. | 4 | 72nd | 4 | Elected in 1926. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 1 | Henry F. Ashurst | Democratic | Mar 27, 1912 – Jan 3, 1941 | Re-elected in 1928. | 4 | 73rd | 5 | Re-elected in 1932. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 1 | Henry F. Ashurst | Democratic | Mar 27, 1912 – Jan 3, 1941 | Re-elected in 1934.Lost renomination. | 5 | 74th | 5 | Re-elected in 1932. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 1 | Henry F. Ashurst | Democratic | Mar 27, 1912 – Jan 3, 1941 | Re-elected in 1934.Lost renomination. | 5 | 75th | 5 | Re-elected in 1932. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 1 | Henry F. Ashurst | Democratic | Mar 27, 1912 – Jan 3, 1941 | Re-elected in 1934.Lost renomination. | 5 | 76th | 6 | Re-elected in 1938. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 2 | Ernest McFarland | Democratic | Jan 3, 1941 – Jan 3, 1953 | Elected in 1940. | 6 | 77th | 6 | Re-elected in 1938. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 2 | Ernest McFarland | Democratic | Jan 3, 1941 – Jan 3, 1953 | Elected in 1940. | 6 | 78th | 6 | Re-elected in 1938. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 2 | Ernest McFarland | Democratic | Jan 3, 1941 – Jan 3, 1953 | Elected in 1940. | 6 | 79th | 7 | Re-elected in 1944. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 2 | Ernest McFarland | Democratic | Jan 3, 1941 – Jan 3, 1953 | Re-elected in 1946.Lost re-election. | 7 | 80th | 7 | Re-elected in 1944. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 2 | Ernest McFarland | Democratic | Jan 3, 1941 – Jan 3, 1953 | Re-elected in 1946.Lost re-election. | 7 | 81st | 7 | Re-elected in 1944. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 2 | Ernest McFarland | Democratic | Jan 3, 1941 – Jan 3, 1953 | Re-elected in 1946.Lost re-election. | 7 | 82nd | 8 | Re-elected in 1950. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 3 | Barry Goldwater | Republican | Jan 3, 1953 – Jan 3, 1965 | Elected in 1952. | 8 | 83rd | 8 | Re-elected in 1950. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 3 | Barry Goldwater | Republican | Jan 3, 1953 – Jan 3, 1965 | Elected in 1952. | 8 | 84th | 8 | Re-elected in 1950. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 3 | Barry Goldwater | Republican | Jan 3, 1953 – Jan 3, 1965 | Elected in 1952. | 8 | 85th | 9 | Re-elected in 1956. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 3 | Barry Goldwater | Republican | Jan 3, 1953 – Jan 3, 1965 | Re-elected in 1958.Retired to run for U.S. President. | 9 | 86th | 9 | Re-elected in 1956. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 3 | Barry Goldwater | Republican | Jan 3, 1953 – Jan 3, 1965 | Re-elected in 1958.Retired to run for U.S. President. | 9 | 87th | 9 | Re-elected in 1956. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 3 | Barry Goldwater | Republican | Jan 3, 1953 – Jan 3, 1965 | Re-elected in 1958.Retired to run for U.S. President. | 9 | 88th | 10 | Re-elected in 1962.Retired. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 4 | Paul Fannin | Republican | Jan 3, 1965 – Jan 3, 1977 | Elected in 1964. | 10 | 89th | 10 | Re-elected in 1962.Retired. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 4 | Paul Fannin | Republican | Jan 3, 1965 – Jan 3, 1977 | Elected in 1964. | 10 | 90th | 10 | Re-elected in 1962.Retired. | Mar 4, 1927 – Jan 3, 1969 | Democratic | Carl Hayden | 3 |
| 4 | Paul Fannin | Republican | Jan 3, 1965 – Jan 3, 1977 | Elected in 1964. | 10 | 91st | 11 | Elected in 1968. | Jan 3, 1969 – Jan 3, 1987 | Republican | Barry Goldwater | 4 |
| 4 | Paul Fannin | Republican | Jan 3, 1965 – Jan 3, 1977 | Re-elected in 1970.Retired. | 11 | 92nd | 11 | Elected in 1968. | Jan 3, 1969 – Jan 3, 1987 | Republican | Barry Goldwater | 4 |
| 4 | Paul Fannin | Republican | Jan 3, 1965 – Jan 3, 1977 | Re-elected in 1970.Retired. | 11 | 93rd | 11 | Elected in 1968. | Jan 3, 1969 – Jan 3, 1987 | Republican | Barry Goldwater | 4 |
| 4 | Paul Fannin | Republican | Jan 3, 1965 – Jan 3, 1977 | Re-elected in 1970.Retired. | 11 | 94th | 12 | Re-elected in 1974. | Jan 3, 1969 – Jan 3, 1987 | Republican | Barry Goldwater | 4 |
| 5 | Dennis DeConcini | Democratic | Jan 3, 1977 – Jan 3, 1995 | Elected in 1976. | 12 | 95th | 12 | Re-elected in 1974. | Jan 3, 1969 – Jan 3, 1987 | Republican | Barry Goldwater | 4 |
| 5 | Dennis DeConcini | Democratic | Jan 3, 1977 – Jan 3, 1995 | Elected in 1976. | 12 | 96th | 12 | Re-elected in 1974. | Jan 3, 1969 – Jan 3, 1987 | Republican | Barry Goldwater | 4 |
| 5 | Dennis DeConcini | Democratic | Jan 3, 1977 – Jan 3, 1995 | Elected in 1976. | 12 | 97th | 13 | Re-elected in 1980.Retired. | Jan 3, 1969 – Jan 3, 1987 | Republican | Barry Goldwater | 4 |
| 5 | Dennis DeConcini | Democratic | Jan 3, 1977 – Jan 3, 1995 | Re-elected in 1982. | 13 | 98th | 13 | Re-elected in 1980.Retired. | Jan 3, 1969 – Jan 3, 1987 | Republican | Barry Goldwater | 4 |
| 5 | Dennis DeConcini | Democratic | Jan 3, 1977 – Jan 3, 1995 | Re-elected in 1982. | 13 | 99th | 13 | Re-elected in 1980.Retired. | Jan 3, 1969 – Jan 3, 1987 | Republican | Barry Goldwater | 4 |
| 5 | Dennis DeConcini | Democratic | Jan 3, 1977 – Jan 3, 1995 | Re-elected in 1982. | 13 | 100th | 14 | Elected in 1986. | Jan 3, 1987 – Aug 25, 2018 | Republican | John McCain | 5 |
| 5 | Dennis DeConcini | Democratic | Jan 3, 1977 – Jan 3, 1995 | Re-elected in 1988.Retired. | 14 | 101st | 14 | Elected in 1986. | Jan 3, 1987 – Aug 25, 2018 | Republican | John McCain | 5 |
| 5 | Dennis DeConcini | Democratic | Jan 3, 1977 – Jan 3, 1995 | Re-elected in 1988.Retired. | 14 | 102nd | 14 | Elected in 1986. | Jan 3, 1987 – Aug 25, 2018 | Republican | John McCain | 5 |
| 5 | Dennis DeConcini | Democratic | Jan 3, 1977 – Jan 3, 1995 | Re-elected in 1988.Retired. | 14 | 103rd | 15 | Re-elected in 1992. | Jan 3, 1987 – Aug 25, 2018 | Republican | John McCain | 5 |
| 6 | Jon Kyl | Republican | Jan 3, 1995 – Jan 3, 2013 | Elected in 1994. | 15 | 104th | 15 | Re-elected in 1992. | Jan 3, 1987 – Aug 25, 2018 | Republican | John McCain | 5 |
| 6 | Jon Kyl | Republican | Jan 3, 1995 – Jan 3, 2013 | Elected in 1994. | 15 | 105th | 15 | Re-elected in 1992. | Jan 3, 1987 – Aug 25, 2018 | Republican | John McCain | 5 |
| 6 | Jon Kyl | Republican | Jan 3, 1995 – Jan 3, 2013 | Elected in 1994. | 15 | 106th | 16 | Re-elected in 1998. | Jan 3, 1987 – Aug 25, 2018 | Republican | John McCain | 5 |
| 6 | Jon Kyl | Republican | Jan 3, 1995 – Jan 3, 2013 | Re-elected in 2000. | 16 | 107th | 16 | Re-elected in 1998. | Jan 3, 1987 – Aug 25, 2018 | Republican | John McCain | 5 |
| 6 | Jon Kyl | Republican | Jan 3, 1995 – Jan 3, 2013 | Re-elected in 2000. | 16 | 108th | 16 | Re-elected in 1998. | Jan 3, 1987 – Aug 25, 2018 | Republican | John McCain | 5 |
| 6 | Jon Kyl | Republican | Jan 3, 1995 – Jan 3, 2013 | Re-elected in 2000. | 16 | 109th | 17 | Re-elected in 2004. | Jan 3, 1987 – Aug 25, 2018 | Republican | John McCain | 5 |
| 6 | Jon Kyl | Republican | Jan 3, 1995 – Jan 3, 2013 | Re-elected in 2006.Retired. | 17 | 110th | 17 | Re-elected in 2004. | Jan 3, 1987 – Aug 25, 2018 | Republican | John McCain | 5 |
| 6 | Jon Kyl | Republican | Jan 3, 1995 – Jan 3, 2013 | Re-elected in 2006.Retired. | 17 | 111th | 17 | Re-elected in 2004. | Jan 3, 1987 – Aug 25, 2018 | Republican | John McCain | 5 |
| 6 | Jon Kyl | Republican | Jan 3, 1995 – Jan 3, 2013 | Re-elected in 2006.Retired. | 17 | 112th | 18 | Re-elected in 2010. | Jan 3, 1987 – Aug 25, 2018 | Republican | John McCain | 5 |
| 7 | Jeff Flake | Republican | Jan 3, 2013 – Jan 3, 2019 | Elected in 2012.Retired. | 18 | 113th | 18 | Re-elected in 2010. | Jan 3, 1987 – Aug 25, 2018 | Republican | John McCain | 5 |
| 7 | Jeff Flake | Republican | Jan 3, 2013 – Jan 3, 2019 | Elected in 2012.Retired. | 18 | 114th | 18 | Re-elected in 2010. | Jan 3, 1987 – Aug 25, 2018 | Republican | John McCain | 5 |
| 7 | Jeff Flake | Republican | Jan 3, 2013 – Jan 3, 2019 | Elected in 2012.Retired. | 18 | 115th | 19 | Re-elected in 2016.Died. | Jan 3, 1987 – Aug 25, 2018 | Republican | John McCain | 5 |
| 7 | Jeff Flake | Republican | Jan 3, 2013 – Jan 3, 2019 | Elected in 2012.Retired. | 18 | 115th | 19 | | Aug 25, 2018 – Sep 4, 2018 | Vacant | Vacant | Vacant |
| 7 | Jeff Flake | Republican | Jan 3, 2013 – Jan 3, 2019 | Elected in 2012.Retired. | 18 | 115th | 19 | Appointed to continue McCain's term.Resigned. | Sep 4, 2018 – Dec 31, 2018 | Republican | Jon Kyl | 6 |
| 7 | Jeff Flake | Republican | Jan 3, 2013 – Jan 3, 2019 | Elected in 2012.Retired. | 18 | 115th | 19 | | Dec 31, 2018 – Jan 3, 2019 | Vacant | Vacant | Vacant |
| 8 | Kyrsten Sinema | Democratic | Jan 3, 2019 – Jan 3, 2025 | Elected in 2018.Left the Democratic Party on December 9, 2022.Retired. | 19 | 116th | 19 | Appointed to continue McCain's term.Lost election to finish McCain's term. | Jan 3, 2019 – Dec 2, 2020 | Republican | Martha McSally | 7 |
| 8 | Kyrsten Sinema | Democratic | Jan 3, 2019 – Jan 3, 2025 | Elected in 2018.Left the Democratic Party on December 9, 2022.Retired. | 19 | 116th | 19 | Elected in 2020 to finish McCain's term. | Dec 2, 2020 – present | Democratic | Mark Kelly | 8 |
| 8 | Kyrsten Sinema | Democratic | Jan 3, 2019 – Jan 3, 2025 | Elected in 2018.Left the Democratic Party on December 9, 2022.Retired. | 19 | 117th | 19 | Elected in 2020 to finish McCain's term. | Dec 2, 2020 – present | Democratic | Mark Kelly | 8 |
| 8 | Kyrsten Sinema | Independent | Jan 3, 2019 – Jan 3, 2025 | Elected in 2018.Left the Democratic Party on December 9, 2022.Retired. | 19 | 117th | 19 | Elected in 2020 to finish McCain's term. | Dec 2, 2020 – present | Democratic | Mark Kelly | 8 |
| 8 | Kyrsten Sinema | Independent | Jan 3, 2019 – Jan 3, 2025 | Elected in 2018.Left the Democratic Party on December 9, 2022.Retired. | 19 | 118th | 20 | Re-elected in 2022. | Dec 2, 2020 – present | Democratic | Mark Kelly | 8 |
| 9 | Ruben Gallego | Democratic | Jan 3, 2025 – present | Elected in 2024. | 20 | 119th | 20 | Re-elected in 2022. | Dec 2, 2020 – present | Democratic | Mark Kelly | 8 |
| 9 | Ruben Gallego | Democratic | Jan 3, 2025 – present | Elected in 2024. | 20 | 120th | 20 | Re-elected in 2022. | Dec 2, 2020 – present | Democratic | Mark Kelly | 8 |
| 9 | Ruben Gallego | Democratic | Jan 3, 2025 – present | Elected in 2024. | 20 | 121st | 21 | To be determined in the 2028 election. | To be determined in the 2028 election. | To be determined in the 2028 election. | To be determined in the 2028 election. | To be determined in the 2028 election. |
| To be determined in the 2030 election. | To be determined in the 2030 election. | To be determined in the 2030 election. | To be determined in the 2030 election. | To be determined in the 2030 election. | 21 | 122nd | 21 | To be determined in the 2028 election. | To be determined in the 2028 election. | To be determined in the 2028 election. | To be determined in the 2028 election. | To be determined in the 2028 election. |
| # | Senator | Party | Years in office | Electoral history | T | C | T | Electoral history | Years in office | Party | Senator | # |
| Class 1 | Class 1 | Class 1 | Class 1 | Class 1 | Class 1 | C | Class 3 | Class 3 | Class 3 | Class 3 | Class 3 | Class 3 |