| Class 1Class 1 U.S. senators belong to the electoral cycle that has recently been contested in2006,2012,2018, and2024. The next election will be in 2030. | C | Class 3Class 3 U.S. senators belong to the electoral cycle that has recently been contested in2004,2010,2016, and2022. The next election will be in2028. |
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| # | Senator | Party | Dates in office | Electoral history | T | T | Electoral history | Dates in office | Party | Senator | # |
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| Vacant | Jan 4, 1896 – Jan 22, 1896 | Utah elected its senators 18 days after statehood. | 1 | 54th | 1 | Utah elected its senators 18 days after statehood. | Jan 4, 1896 – Jan 22, 1896 | Vacant |
| 1 |  Frank J. Cannon | Republican | Jan 22, 1896 – Mar 3, 1899 | Elected in 1896. | Elected in 1896.Retired. | Jan 22, 1896 – Mar 3, 1897 | Republican |  Arthur Brown | 1 |
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Silver Republican | 55th | 2 | Elected in 1897.Lost re-election. | Mar 4, 1897 – Mar 3, 1903 | Democratic |  Joseph L. Rawlins | 2 |
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| Vacant | Mar 4, 1899 – Jan 23, 1901 | Legislature failed to elect.[1] | 2 | 56th |
| 2 |  Thomas Kearns | Republican | Jan 23, 1901 – Mar 3, 1905 | Elected late in 1901.Retired. |
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| 57th |
| 58th | 3 | Elected in 1903. | Mar 4, 1903 – Mar 3, 1933 | Republican |  Reed Smoot | 3 |
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| 3 |  George Sutherland | Republican | Mar 4, 1905 – Mar 3, 1917 | Elected in 1905.[2] | 3 | 59th |
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| 60th |
| 61st | 4 | Re-elected in 1909. |
| Re-elected in 1911.Lost re-election. | 4 | 62nd |
| 63rd |
| 64th | 5 | Re-elected in 1914. |
| 4 |  William H. King | Democratic | Mar 4, 1917 – Jan 3, 1941 | Elected in 1916. | 5 | 65th |
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| 66th |
| 67th | 6 | Re-elected in 1920. |
| Re-elected in 1922. | 6 | 68th |
| 69th |
| 70th | 7 | Re-elected in 1926.Lost re-election. |
| Re-elected in 1928. | 7 | 71st |
| 72nd |
| 73rd | 8 | Elected in 1932. | Mar 4, 1933 – Jan 3, 1951 | Democratic |  Elbert D. Thomas | 4 |
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| Re-elected in 1934.Lost renomination. | 8 | 74th |
| 75th |
| 76th | 9 | Re-elected in 1938. |
| 5 |  Abe Murdock | Democratic | Jan 3, 1941 – Jan 3, 1947 | Elected in 1940.Lost re-election. | 9 | 77th |
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| 78th |
| 79th | 10 | Re-elected in 1944.Lost re-election. |
| 6 |  Arthur V. Watkins | Republican | Jan 3, 1947 – Jan 3, 1959 | Elected in 1946. | 10 | 80th |
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| 81st |
| 82nd | 11 | Elected in 1950. | Jan 3, 1951 – Dec 20, 1974 | Republican |  Wallace F. Bennett | 5 |
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| Re-elected in 1952.Lost re-election. | 11 | 83rd |
| 84th |
| 85th | 12 | Re-elected in 1956. |
| 7 |  Frank Moss | Democratic | Jan 3, 1959 – Jan 3, 1977 | Elected in 1958. | 12 | 86th |
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| 87th |
| 88th | 13 | Re-elected in 1962. |
| Re-elected in 1964. | 13 | 89th |
| 90th |
| 91st | 14 | Re-elected in 1968.Retired, and resigned early to give successor preferential seniority. |
| Re-elected in 1970.Lost re-election. | 14 | 92nd |
| 93rd |
| Appointed to finish Bennett's term, having been elected to the next term. | Dec 21, 1974 – Jan 3, 1993 | Republican |  Jake Garn | 6 |
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| 94th | 15 | Elected in 1974. |
| 8 |  Orrin Hatch | Republican | Jan 3, 1977 – Jan 3, 2019 | Elected in 1976. | 15 | 95th |
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| 96th |
| 97th | 16 | Re-elected in 1980. |
| Re-elected in 1982. | 16 | 98th |
| 99th |
| 100th | 17 | Re-elected in 1986.Retired. |
| Re-elected in 1988. | 17 | 101st |
| 102nd |
| 103rd | 18 | Elected in 1992. | Jan 3, 1993 – Jan 3, 2011 | Republican |  Bob Bennett | 7 |
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| Re-elected in 1994. | 18 | 104th |
| 105th |
| 106th | 19 | Re-elected in 1998. |
| Re-elected in 2000. | 19 | 107th |
| 108th |
| 109th | 20 | Re-elected in 2004.Lost renomination. |
| Re-elected in 2006. | 20 | 110th |
| 111th |
| 112th | 21 | Elected in 2010. | Jan 3, 2011 – present | Republican |  Mike Lee | 8 |
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| Re-elected in 2012.Retired. | 21 | 113th |
| 114th |
| 115th | 22 | Re-elected in 2016. |
| 9 |  Mitt Romney | Republican | Jan 3, 2019 – Jan 3, 2025 | Elected in 2018.Retired. | 22 | 116th |
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| 117th |
| 118th | 23 | Re-elected in 2022. |
| 10 |  John Curtis | Republican | Jan 3, 2025 – present | Elected in 2024. | 23 | 119th |
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| 120th |
| 121st | 24 | To be determined in the 2028 election. |
| To be determined in the 2030 election. | 24 | 122nd |
| # | Senator | Party | Years in office | Electoral history | T | C | T | Electoral history | Years in office | Party | Senator | # |
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| Class 1 | Class 3 |
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