North Dakota was admitted to the Union on November 2, 1889, and elects U.S. senators to class 1 and class 3. Its current senators in Congress are Republicans John Hoeven (since 2011) and Kevin Cramer (since 2019). Milton Young was North Dakota's longest-serving senator (1945–1981).
List of senators
|- style="height:2em"
| colspan=3 | Vacant
| nowrap | Nov 2, 1889 –<br/>Nov 25, 1889
|
| rowspan=3 | 1
| rowspan=2
| rowspan=2 | 1
|
| nowrap | Nov 2, 1889 –<br/>Nov 25, 1889
| colspan=3 | Vacant
|-
! rowspan=2 | 1
| rowspan=2 align=left | 100px<br/>Lyman R. Casey<br />
| rowspan=2 | Republican
| rowspan=2 nowrap | Nov 25, 1889 –<br/>Mar 3, 1893
| rowspan=2 | Elected in 1889.Lost renomination.
| Elected in 1889.Lost re-election.
| nowrap | Nov 25, 1889 –<br/>Mar 3, 1891
| | Republican
| align=right | 100px<br/>Gilbert A. Pierce<br />
! 1
|- style="height:2em"
|
| rowspan=3 | 2
| rowspan=3 | Elected in 1891.
| rowspan=9 nowrap | Mar 4, 1891 –<br/>Mar 3, 1909
| rowspan=9 | Republican
| rowspan=9 align=right | 100px<br/>Henry C. Hansbrough<br />
! rowspan=9 | 2
|- style="height:2em"
! rowspan=3 | 2
| rowspan=3 align=left | 100px<br/>William N. Roach<br />
| rowspan=3 | Democratic
| rowspan=3 nowrap | Mar 4, 1893 –<br/>Mar 3, 1899
| rowspan=3 | Elected in 1893.
Lost re-election.
| rowspan=3 | 2
|
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=3 | 3
| rowspan=3 | Re-elected in 1897.
|- style="height:2em"
! rowspan=16 | 3
| rowspan=16 align=left | 100px<br/>Porter J. McCumber<br />
| rowspan=16 | Republican
| rowspan=16 nowrap | Mar 4, 1899 –<br/>Mar 3, 1923
| rowspan=3 | Elected in 1899.
| rowspan=3 | 3
|
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=3 | 4
| rowspan=3 | Re-elected in 1903.Lost renomination.
|- style="height:2em"
| rowspan=7 | Re-elected in 1905.
| rowspan=7 | 4
|
|- style="height:2em"
|
|- style="height:2em"
| rowspan=5
| rowspan=7 | 5
| Elected in 1909.Died.
| nowrap | Mar 4, 1909 –<br/>Oct 21, 1909
| | Republican
| align=right | 100px<br/>Martin N. Johnson<br />
! 3
|- style="height:2em"
|
| nowrap | Oct 21, 1909 –<br/>Nov 10, 1909
| colspan=3 | Vacant
|- style="height:2em"
| Appointed to continue Johnson's term.Resigned.
| nowrap | Nov 10, 1909 –<br/>Jan 31, 1910
| | Democratic
| align=right | 100px<br/>Fountain L. Thompson<br />
! 4
|- style="height:2em"
| Appointed to continue Johnson's term.Lost election to finish Johnson's term.
| nowrap | Feb 1, 1910 –<br/>Feb 1, 1911
| | Democratic
| align=right | 100px<br/>William E. Purcell<br />
! 5
|- style="height:2em"
| rowspan=3 | Elected in 1911 to finish Johnson's term, but didn't qualify until resigning from the U.S. House.
| rowspan=6 nowrap | Feb 2, 1911 –<br/>Mar 3, 1921
| rowspan=6 | Republican
| rowspan=6 align=right | 100px<br/>Asle Gronna<br />
! rowspan=6 | 6
|- style="height:2em"
| rowspan=3 | Re-elected in 1911.
| rowspan=3 | 5
|
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=3 | 6
| rowspan=3 | Re-elected in 1914.Lost renomination.
|- style="height:2em"
| rowspan=3 | Re-elected in 1916.Lost renomination.
| rowspan=3 | 6
|
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=5 | 7
| rowspan=3 | Elected in 1920.Died.
| rowspan=3 nowrap | Mar 4, 1921 –<br/>Jun 22, 1925
| rowspan=3 | Republican (NPL)
| rowspan=3 align=right | 100px<br/>Edwin F. Ladd<br />
! rowspan=3 | 7
|- style="height:2em"
! rowspan=11 | 4
| rowspan=11 align=left | 100px<br/>Lynn Frazier<br />
| rowspan=11 | Republican<br/>(NPL)
| rowspan=11 nowrap | Mar 4, 1923 –<br/>Jan 3, 1941
| rowspan=5 | Elected in 1922.
| rowspan=5 | 7
|
|- style="height:2em"
| rowspan=3
|- style="height:2em"
|
| nowrap | Jun 22, 1925 –<br/>Nov 14, 1925
| colspan=3 | Vacant
|- style="height:2em"
| Appointed to continue Ladd's term.Elected in 1926 to finish Ladd's term.
| rowspan=10 nowrap | Nov 14, 1925 –<br/>Jan 3, 1945
| | Nonpartisan<br/>League
| rowspan=10 align=right | 100px<br/>Gerald Nye<br />
! rowspan=10 | 8
|- style="height:2em"
|
| rowspan=3 | 8
| rowspan=3 | Re-elected in 1926.
| rowspan=6 | Republican<br/>(NPL)
|- style="height:2em"
| rowspan=3 | Re-elected in 1928.
| rowspan=3 | 8
|
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=3 | 9
| rowspan=3 | Re-elected in 1932.
|- style="height:2em"
| rowspan=3 | Re-elected in 1934.Lost renomination.
| rowspan=3 | 9
|
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=3 | 10
| rowspan=3 | Re-elected in 1938.Lost re-election.
| rowspan=3 | Republican
|- style="height:2em"
! rowspan=12 | 5
| rowspan=12 align=left | 100px<br/>William Langer<br />
| rowspan=12 | Republican<br/>(NPL)
| rowspan=12 nowrap | Jan 3, 1941 –<br/>Nov 8, 1959
| rowspan=5 | Elected in 1940.
| rowspan=5 | 10
|
|- style="height:2em"
|
|- style="height:2em"
| rowspan=3
| rowspan=5 | 11
| Elected in 1944.Died.
| nowrap | Jan 3, 1945 –<br/>Mar 3, 1945
| | Democratic
| align=right | 100px<br/>John Moses<br />
! 9
|- style="height:2em"
|
| nowrap | Mar 3, 1945 –<br/>Mar 12, 1945
| colspan=3 | Vacant
|- style="height:2em"
| rowspan=3 | Appointed to continue Moses's term.Elected in 1946 to finish Moses's term.
| rowspan=21 nowrap | Mar 12, 1945 –<br/>Jan 3, 1981
| rowspan=21 | Republican
| rowspan=21 align=right | 100px<br/>Milton Young<br />
! rowspan=21 | 10
|- style="height:2em"
| rowspan=3 | Re-elected in 1946.
| rowspan=3 | 11
|
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=3 | 12
| rowspan=3 | Re-elected in 1950.
|- style="height:2em"
| rowspan=3 | Re-elected in 1952.
| rowspan=3 | 12
|
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=6 | 13
| rowspan=6 | Re-elected in 1956.
|- style="height:2em"
| Re-elected in 1958.Died.
| rowspan=6 | 13
| rowspan=4
|- style="height:2em"
| colspan=3 | Vacant
| nowrap | Nov 8, 1959 –<br/>Nov 19, 1959
|
|- style="height:2em"
! 6
| align=left | 100px<br/>Norman Brunsdale<br />
| | Republican
| nowrap | Nov 19, 1959 –<br/>Aug 7, 1960
| Appointed to continue Langer's term.Retired when successor elected.
|- style="height:2em"
! rowspan=17 | 7
| rowspan=17 align=left | 100px<br/>Quentin Burdick<br />
| rowspan=17 | Democratic<br/>–NPL
| rowspan=17 nowrap | Aug 8, 1960 –<br/>Sep 8, 1992
| rowspan=3 | Elected to finish Langer's term.
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=3 | 14
| rowspan=3 | Re-elected in 1962.
|- style="height:2em"
| rowspan=3 | Re-elected in 1964.
| rowspan=3 | 14
|
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=3 | 15
| rowspan=3 | Re-elected in 1968.
|- style="height:2em"
| rowspan=3 | Re-elected in 1970.
| rowspan=3 | 15
|
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=3 | 16
| rowspan=3 | Re-elected in 1974.Retired.
|- style="height:2em"
| rowspan=3 | Re-elected in 1976.
| rowspan=3 | 16
|
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=3 | 17
| rowspan=3 | Elected in 1980.Lost re-election.
| rowspan=3 nowrap | Jan 3, 1981 –<br/>Jan 3, 1987
| rowspan=3 | Republican
| rowspan=3 align=right | 100px<br/>Mark Andrews<br />
! rowspan=3 | 11
|- style="height:2em"
| rowspan=3 | Re-elected in 1982.
| rowspan=3 | 17
|
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=6 | 18
| rowspan=5 | Elected in 1986.Retired, then resigned early when elected to the other Senate seat.
| rowspan=5 nowrap | Jan 3, 1987 –<br/>Dec 14, 1992
| rowspan=5 | Democratic<br/>–NPL
| rowspan=5 align=right | 100px<br/>Kent Conrad<br />
! rowspan=5 | 12
|- style="height:2em"
| rowspan=2 | Re-elected in 1988.Died.
| rowspan=6 | 18
|
|- style="height:2em"
| rowspan=4
|- style="height:2em"
| colspan=3 | Vacant
| nowrap | Sep 8, 1992 –<br/>Sep 12, 1992
|
|- style="height:2em"
! 8
| align=left | 100px<br/>Jocelyn Burdick<br />
| | Democratic<br/>–NPL
| nowrap | Sep 12, 1992 –<br/>Dec 14, 1992
| Appointed to continue her husband's term.Retired when successor elected.
|- style="height:2em"
! rowspan=11 | 9
| rowspan=11 align=left | 100px<br/>Kent Conrad<br />
| rowspan=11 | Democratic<br/>–NPL
| rowspan=11 nowrap | Dec 14, 1992 –<br/>Jan 3, 2013
| rowspan=2 | Elected to finish Quentin Burdick's term.
| Appointed to finish Conrad's term, having already been elected to the next term.
| rowspan=10 nowrap | Dec 15, 1992 –<br/>Jan 3, 2011
| rowspan=10 | Democratic<br/>–NPL
| rowspan=10 align=right | 100px<br/>Byron Dorgan<br />
! rowspan=10 | 13
|- style="height:2em"
|
| rowspan=3 | 19
| rowspan=3 | Elected in 1992.
|- style="height:2em"
| rowspan=3 | Re-elected in 1994.
| rowspan=3 | 19
|
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=3 | 20
| rowspan=3 | Re-elected in 1998.
|- style="height:2em"
| rowspan=3 | Re-elected in 2000.
| rowspan=3 | 20
|
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=3 | 21
| rowspan=3 | Re-elected in 2004.Retired.
|- style="height:2em"
| rowspan=3 | Re-elected in 2006.Retired.
| rowspan=3 | 21
|
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=3 | 22
| rowspan=3 | Elected in 2010.
| rowspan=9 nowrap | Jan 3, 2011 –<br/>present
| rowspan=9 | Republican
| rowspan=9 align=right | 100px<br/>John Hoeven<br />
! rowspan=9 | 14
|- style="height:2em"
! rowspan=3 | 10
| rowspan=3 align=left | 100px<br/>Heidi Heitkamp<br />
| rowspan=3 | Democratic<br/>–NPL
| rowspan=3 nowrap | Jan 3, 2013 –<br/>Jan 3, 2019
| rowspan=3 | Elected in 2012.Lost re-election.
| rowspan=3 | 22
|
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=3 | 23
| rowspan=3 | Re-elected in 2016.
|- style="height:2em"
! rowspan=6 | 11
| rowspan=6 align=left | 100px <br/>Kevin Cramer<br />
| rowspan=6 | Republican
| rowspan=6 nowrap | Jan 3, 2019 –<br/>present
| rowspan=3 | Elected in 2018.
| rowspan=3 | 23
|
|- style="height:2em"
|
|- style="height:2em"
|
| rowspan=3 | 24
| rowspan=3 | Re-elected in 2022.
|- style="height:2em"
| rowspan=3| Re-elected in 2024.
| rowspan=3| 24
|
|- style="height:2em"
|
|- style="height:2em"
|
| 25
| colspan=5 | To be determined in the 2028 election.
See also
- Elections in North Dakota
- List of United States representatives from North Dakota
- North Dakota's congressional delegations