List of United States senators from Idaho

Below is a chronological listing of the United States senators from Idaho. The state was admitted to the Union on July 3, 1890, and its U.S. senators belong to class 2 and class 3. Idaho's current U.S. Senators are Republicans Mike Crapo (serving since 1999) and Jim Risch (serving since 2009). William Borah was Idaho's longest-serving senator (1907–1940). Idaho is one of fifteen states alongside Arizona, Colorado, Florida, Georgia, Hawaii, Indiana, Louisiana, Maine, Massachusetts, Minnesota, Missouri, Nevada, South Dakota and Utah to have a younger senior senator and an older junior senator.

List of senators

 * - style="height:2em"
 * colspan=3 | Vacant
 * nowrap | Jul 3, 1890 – Dec 18, 1890
 * After joining the Union, Idaho did not elect its senators for six months.
 * rowspan=4 | 1
 * rowspan=2
 * rowspan=2 | 1
 * After joining the Union, Idaho did not elect its senators for six months.
 * nowrap | Jul 3, 1890 – Dec 18, 1890
 * colspan=3 | Vacant

! rowspan=6 | 1 ! 1
 * - style="height:2em"
 * rowspan=6 align=left | Georgelshoup.jpg George Shoup
 * rowspan=6 | Republican
 * rowspan=6 nowrap | Dec 18, 1890 – Mar 3, 1901
 * rowspan=3 | Elected in 1890.
 * Elected in 1890.Retired.
 * nowrap | Dec 18, 1890 – Mar 3, 1891
 * | Republican
 * align=right | Williammcconnell.jpg William McConnell

! rowspan=3 | 2
 * - style="height:2em"
 * rowspan=3 | 2
 * rowspan=3 | Elected in 1890.Lost re-election as a Silver Republican.
 * rowspan=3 nowrap | Mar 4, 1891 – Mar 3, 1897
 * rowspan=3 | Republican
 * rowspan=3 align=right | Sen. Fred T. Dubois of Idaho LCCN2016821673 (cropped).jpg Fred Dubois
 * rowspan=3 align=right | Sen. Fred T. Dubois of Idaho LCCN2016821673 (cropped).jpg Fred Dubois


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1895.Lost re-election.
 * rowspan=3 | 2

! rowspan=4 | 3
 * - style="height:2em"
 * rowspan=4 | 3
 * rowspan=4 | Elected in 1897.Retired.
 * rowspan=4 nowrap | Mar 4, 1897 – Mar 3, 1903
 * rowspan=4 | Populist
 * rowspan=4 align=right | Henry Heitfeld (senator) (cropped).jpg Henry Heitfeld
 * rowspan=4 align=right | Henry Heitfeld (senator) (cropped).jpg Henry Heitfeld


 * - style="height:2em"

! rowspan=4 | 2
 * - style="height:2em"
 * rowspan=4 align=left | Sen. Fred T. Dubois of Idaho LCCN2016821673 (cropped).jpg Fred Dubois
 * | Silver Republican
 * rowspan=4 nowrap | Mar 4, 1901 – Mar 3, 1907
 * rowspan=4 | Elected in 1901 as a Silver Republican, but changed party to Democratic.Lost re-election.
 * rowspan=4 | 3
 * rowspan=2


 * - style="height:2em"
 * rowspan=3 | Democratic

! rowspan=5 | 4
 * - style="height:2em"
 * rowspan=3 | 4
 * rowspan=3 | Elected in 1903.
 * rowspan=5 nowrap | Mar 4, 1903 – Oct 17, 1912
 * rowspan=5 | Republican
 * rowspan=5 align=right | BrintonHeyburn.jpg Weldon Heyburn
 * rowspan=5 align=right | BrintonHeyburn.jpg Weldon Heyburn


 * - style="height:2em"

! rowspan=25 | 3
 * - style="height:2em"
 * rowspan=25 align=left | Williameborah.jpg William Borah
 * rowspan=25 | Republican
 * rowspan=25 nowrap | Mar 4, 1907 – Jan 19, 1940
 * rowspan=6 | Elected in 1907.
 * rowspan=6 | 4


 * - style="height:2em"
 * rowspan=6 | 5
 * rowspan=2 | Re-elected in 1909.Died.
 * rowspan=2 | Re-elected in 1909.Died.


 * - style="height:2em"
 * rowspan=4


 * - style="height:2em"
 * nowrap | Oct 17, 1912 – Nov 18, 1912
 * colspan=3 | Vacant
 * colspan=3 | Vacant

! 5
 * - style="height:2em"
 * Appointed to continue Heyburn's term.Lost election to finish Heyburn's term.
 * nowrap | Nov 18, 1912 – Feb 6, 1913
 * | Democratic
 * align=right | Kirtlandperky.jpg Kirtland Perky

! rowspan=4 | 6
 * - style="height:2em"
 * rowspan=2 | Elected in 1913 to finish Heyburn's term.
 * rowspan=4 nowrap | Feb 6, 1913 – Jan 13, 1918
 * rowspan=4 | Republican
 * rowspan=4 align=right | Jamesbrady.jpg James Brady


 * - style="height:2em"
 * rowspan=5 | Re-elected in 1913.
 * rowspan=5 | 5


 * - style="height:2em"
 * rowspan=6 | 6
 * rowspan=2 | Re-elected in 1914.Died.
 * rowspan=2 | Re-elected in 1914.Died.


 * - style="height:2em"
 * rowspan=3


 * - style="height:2em"
 * nowrap | Jan 13, 1918 – Jan 22, 1918
 * colspan=3 | Vacant
 * colspan=3 | Vacant

! rowspan=2 | 7
 * - style="height:2em"
 * rowspan=2 | Appointed to continue Brady's term.Elected in 1918 to finish Brady's term.Resigned to become a Federal Trade Commissioner, having lost election to a full term.
 * rowspan=2 nowrap | Jan 22, 1918 – Jan 14, 1921
 * rowspan=2 | Democratic
 * rowspan=2 align=right | Johnnugent.jpg John F. Nugent


 * - style="height:2em"
 * rowspan=4 | Re-elected in 1918
 * rowspan=4 | 6
 * rowspan=2

! rowspan=5 | 8
 * - style="height:2em"
 * Appointed to finish Brady's term, having been elected to the next term.
 * rowspan=5 nowrap | Jan 15, 1921 – Jun 24, 1928
 * rowspan=5 | Republican
 * rowspan=5 align=right | Frankgooding.jpg Frank Gooding


 * - style="height:2em"
 * rowspan=3 | 7
 * rowspan=3 | Elected to full term in 1920.
 * rowspan=3 | Elected to full term in 1920.


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=5 | Re-elected in 1924.
 * rowspan=5 | 7


 * - style="height:2em"
 * rowspan=3
 * rowspan=5 | 8
 * Re-elected in 1926.Died.


 * - style="height:2em"
 * nowrap | Jun 24, 1928 – Jun 30, 1928
 * colspan=3 | Vacant
 * colspan=3 | Vacant

! rowspan=3 | 9
 * - style="height:2em"
 * rowspan=3 | Appointed to continue Gooding's term.Elected in 1928 to finish Gooding's term.Lost re-election.
 * rowspan=3 nowrap | Jun 30, 1928 – Mar 3, 1933
 * rowspan=3 | Republican
 * rowspan=3 align=right | JohnWThomas.jpg John Thomas


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1930.
 * rowspan=3 | 8

! rowspan=3 | 10
 * - style="height:2em"
 * rowspan=3 | 9
 * rowspan=3 | Elected in 1932.Lost renomination.
 * rowspan=3 nowrap | Mar 4, 1933 – Jan 3, 1939
 * rowspan=3 | Democratic
 * rowspan=3 align=right | JamesPPope.jpg James P. Pope
 * rowspan=3 align=right | JamesPPope.jpg James P. Pope


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=2 | Re-elected in 1936.Died.
 * rowspan=5 | 9

! rowspan=5 | 11
 * - style="height:2em"
 * rowspan=3
 * rowspan=5 | 10
 * rowspan=5 | Elected in 1938.Lost renomination.
 * rowspan=5 nowrap | Jan 3, 1939 – Jan 3, 1945
 * rowspan=5 | Democratic
 * rowspan=5 align=right | Dworthclark.jpg D. Worth Clark


 * - style="height:2em"
 * colspan=3 | Vacant
 * nowrap | Jan 19, 1940 – Jan 27, 1940

! rowspan=4 | 4
 * - style="height:2em"
 * rowspan=4 align=left | JohnWThomas.jpg John Thomas
 * rowspan=4 | Republican
 * rowspan=4 | Jan 27, 1940 – Nov 10, 1945
 * rowspan=2 | Appointed to continue Borah's term.Elected in 1940 to finish Borah's term.


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=2 | Re-elected in 1942.Died.
 * rowspan=6 | 10

! rowspan=8 | 12
 * - style="height:2em"
 * rowspan=4
 * rowspan=8 | 11
 * rowspan=8 | Elected in 1944.Lost renomination.
 * rowspan=8 nowrap | Jan 3, 1945 – Jan 3, 1951
 * rowspan=8 | Democratic
 * rowspan=8 align=right | Glentaylor.jpg Glen H. Taylor


 * - style="height:2em"
 * colspan=3 | Vacant
 * nowrap | Nov 10, 1945 – Nov 17, 1945

! 5
 * - style="height:2em"
 * align=left | Charlescgossett.jpg Charles C. Gossett
 * | Democratic
 * nowrap | Nov 17, 1945 – Nov 5, 1946
 * Appointed to continue Thomas's term.Lost nomination to finish Thomas's term.

! rowspan=2 | 6
 * - style="height:2em"
 * rowspan=2 align=left | Henry Dworshak (R-ID).jpg Henry Dworshak
 * rowspan=2 | Republican
 * rowspan=2 nowrap | Nov 6, 1946 – Jan 3, 1949
 * rowspan=2 | Elected in 1946 to finish Thomas's term.Lost re-election.


 * - style="height:2em"

! 7
 * - style="height:2em"
 * align=left | Berthmiller.jpg Bert H. Miller
 * | Democratic
 * nowrap | Jan 3, 1949 – Oct 8, 1949
 * Elected in 1948.Died.
 * rowspan=5 | 11
 * rowspan=3


 * - style="height:2em"
 * colspan=3 | Vacant
 * nowrap | Oct 8, 1949 – Oct 14, 1949

! rowspan=7 | 8
 * - style="height:2em"
 * rowspan=7 align=left | Henry Dworshak.jpg Henry Dworshak
 * rowspan=7 | Republican
 * rowspan=7 nowrap | Oct 14, 1949 – Jul 23, 1962
 * rowspan=3 | Appointed to continue Miller's term.Elected in 1950 to finish Miller's term.

! rowspan=3 | 13
 * - style="height:2em"
 * rowspan=3 | 12
 * rowspan=3 | Elected in 1950.Lost re-election.
 * rowspan=3 nowrap | Jan 3, 1951 – Jan 3, 1957
 * rowspan=3 | Republican
 * rowspan=3 align=right | Hermanwelker.jpg Herman Welker
 * rowspan=3 align=right | Hermanwelker.jpg Herman Welker


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1954
 * rowspan=3 | 12

! rowspan=14 | 14
 * - style="height:2em"
 * rowspan=5 | 13
 * rowspan=5 | Elected in 1956.
 * rowspan=14 nowrap | Jan 3, 1957 – Jan 3, 1981
 * rowspan=14 | Democratic
 * rowspan=14 align=right | FrankChurch.jpg Frank Church
 * rowspan=14 align=right | FrankChurch.jpg Frank Church


 * - style="height:2em"


 * - style="height:2em"
 * Re-elected in 1960.Died.
 * rowspan=5 | 13
 * rowspan=3


 * - style="height:2em"
 * colspan=3 | Vacant
 * nowrap | Jul 23, 1962 – Aug 6, 1962

! rowspan=6 | 9
 * - style="height:2em"
 * rowspan=6 align=left | Lenjordan.jpg Len Jordan
 * rowspan=6 | Republican
 * rowspan=6 nowrap | Aug 6, 1962 – Jan 3, 1973
 * rowspan=3 | Appointed to continue Dworshak's term.Elected in 1962 to finish Dworshak's term.


 * - style="height:2em"
 * rowspan=3 | 14
 * rowspan=3 | Re-elected in 1962.
 * rowspan=3 | Re-elected in 1962.


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1966.Retired.
 * rowspan=3 | 14


 * - style="height:2em"
 * rowspan=3 | 15
 * rowspan=3 | Re-elected in 1968.
 * rowspan=3 | Re-elected in 1968.


 * - style="height:2em"

! rowspan=9 | 10
 * - style="height:2em"
 * rowspan=9 align=left | Jimmcclure.jpg Jim McClure
 * rowspan=9 | Republican
 * rowspan=9 nowrap | Jan 3, 1973 – Jan 3, 1991
 * rowspan=3 | Elected in 1972.
 * rowspan=3 | 15


 * - style="height:2em"
 * rowspan=3 | 16
 * rowspan=3 | Re-elected in 1974.Lost re-election.
 * rowspan=3 | Re-elected in 1974.Lost re-election.


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1978.
 * rowspan=3 | 16

! rowspan=6 | 15
 * - style="height:2em"
 * rowspan=3 | 17
 * rowspan=3 | Elected in 1980.
 * rowspan=6 nowrap | Jan 3, 1981 – Jan 3, 1993
 * rowspan=6 | Republican
 * rowspan=6 align=right | Stevesymms.jpg Steve Symms
 * rowspan=6 align=right | Stevesymms.jpg Steve Symms


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1984.Retired.
 * rowspan=3 | 17


 * - style="height:2em"
 * rowspan=3 | 18
 * rowspan=3 | Re-elected in 1986.Retired.
 * rowspan=3 | Re-elected in 1986.Retired.


 * - style="height:2em"

! rowspan=9 | 11
 * - style="height:2em"
 * rowspan=9 align=left | Larry Craig official portrait.jpg Larry Craig
 * rowspan=9 | Republican
 * rowspan=9 nowrap | Jan 3, 1991 – Jan 3, 2009
 * rowspan=3 | Elected in 1990.
 * rowspan=3 | 18

! rowspan=3 | 16
 * - style="height:2em"
 * rowspan=3 | 19
 * rowspan=3 | Elected in 1992.Retired to run for Governor of Idaho.
 * rowspan=3 nowrap | Jan 3, 1993 – Jan 3, 1999
 * rowspan=3 | Republican
 * rowspan=3 align=right | Dirkkempthornesenate.jpg Dirk Kempthorne
 * rowspan=3 align=right | Dirkkempthornesenate.jpg Dirk Kempthorne


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 1996.
 * rowspan=3 | 19

! rowspan=15 | 17
 * - style="height:2em"
 * rowspan=3 | 20
 * rowspan=3 | Elected in 1998.
 * rowspan=15 nowrap | Jan 3, 1999 – present
 * rowspan=15 | Republican
 * rowspan=15 align=right | Mike Crapo official photo.jpg Mike Crapo
 * rowspan=15 align=right | Mike Crapo official photo.jpg Mike Crapo


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 2002.Retired.
 * rowspan=3 | 20


 * - style="height:2em"
 * rowspan=3 | 21
 * rowspan=3 | Re-elected in 2004.
 * rowspan=3 | Re-elected in 2004.


 * - style="height:2em"

! rowspan=9 | 12
 * - style="height:2em"
 * rowspan=9 align=left | James E. Risch, official Senate photo portrait, 2009.jpg Jim Risch
 * rowspan=9 | Republican
 * rowspan=9 nowrap | Jan 3, 2009 – present
 * rowspan=3 | Elected in 2008.
 * rowspan=3 | 21


 * - style="height:2em"
 * rowspan=3 | 22
 * rowspan=3 | Re-elected in 2010.
 * rowspan=3 | Re-elected in 2010.


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 2014.
 * rowspan=3 | 22


 * - style="height:2em"
 * rowspan=3 | 23
 * rowspan=3 | Re-elected in 2016.
 * rowspan=3 | Re-elected in 2016.


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=3 | Re-elected in 2020.
 * rowspan=3 | 23


 * - style="height:2em"
 * rowspan=3 |24
 * rowspan=3 | Re-elected in 2022.
 * rowspan=3 | Re-elected in 2022.


 * - style="height:2em"


 * - style="height:2em"
 * rowspan=2 colspan=5 | To be determined in the 2026 election.
 * rowspan=2 | 24


 * - style="height:2em"
 * 25
 * colspan=5 | To be determined in the 2028 election.
 * colspan=5 | To be determined in the 2028 election.