North Dakota was admitted to the Union on November 2, 1889.

The current dean of the North Dakota delegation is Senator John Hoeven, having served in the Senate since 2011.

Current delegation
Senator John Hoeven
(R)
Senator Kevin Cramer
(R)

United States Senate

See also: List of United States senators from North Dakota

Class I senators Congress Class III senators
Lyman R. Casey (R) 51st (1889–1891) Gilbert A. Pierce (R)
52nd (1891–1893) Henry C. Hansbrough (R)
William N. Roach (D) 53rd (1893–1895)
54th (1895–1897)
55th (1897–1899)
Porter J. McCumber (R) 56th (1899–1901)
57th (1901–1903)
58th (1903–1905)
59th (1905–1907)
60th (1907–1909)
61st (1909–1911) Martin N. Johnson (R)
Fountain Thompson (D)
William E. Purcell (D)
Asle Gronna (R)
62nd (1911–1913)
63rd (1913–1915)
64th (1915–1917)
65th (1917–1919)
66th (1919–1921)
67th (1921–1923) Edwin F. Ladd (R)
Lynn Frazier (R-NPL) 68th (1923–1925)
69th (1925–1927)
Gerald Nye (R)
70th (1927–1929)
71st (1929–1931)
72nd (1931–1933)
73rd (1933–1935)
74th (1935–1937)
75th (1937–1939)
76th (1939–1941)
William Langer (R-NPL) 77th (1941–1943)
78th (1943–1945)
79th (1945–1947) John Moses (D)
Milton Young (R)
80th (1947–1949)
81st (1949–1951)
82nd (1951–1953)
83rd (1953–1955)
84th (1955–1957)
85th (1957–1959)
86th (1959–1961)
Norman Brunsdale (R)
Quentin Burdick (D-NPL)
87th (1961–1963)
88th (1963–1965)
89th (1965–1967)
90th (1967–1969)
91st (1969–1971)
92nd (1971–1973)
93rd (1973–1975)
94th (1975–1977)
95th (1977–1979)
96th (1979–1981)
97th (1981–1983) Mark Andrews (R)
98th (1983–1985)
99th (1985–1987)
100th (1987–1989) Kent Conrad (D-NPL)
101st (1989–1991)
102nd (1991–1993)
Jocelyn Burdick (D-NPL)
Kent Conrad (D-NPL) Byron Dorgan (D-NPL)
103rd (1993–1995)
104th (1995–1997)
105th (1997–1999)
106th (1999–2001)
107th (2001–2003)
108th (2003–2005)
109th (2005–2007)
110th (2007–2009)
111th (2009–2011)
112th (2011–2013) John Hoeven (R)
Heidi Heitkamp (D-NPL) 113th (2013–2015)
114th (2015–2017)
115th (2017–2019)
Kevin Cramer (R) 116th (2019–2021)
117th (2021–2023)

United States House of Representatives

For pre-statehood delegations from the Dakota Territory, see Dakota Territory's at-large congressional district.

See also: List of United States representatives from North Dakota

Congress 1st at-large seat 2nd at-large seat
51st (1889–1891) Henry C. Hansbrough (R)
52nd (1891–1893) Martin N. Johnson (R)
53rd (1893–1895)
54th (1895–1897)
55th (1897–1899)
56th (1899–1901) Burleigh F. Spalding (R)
57th (1901–1903) Thomas Frank Marshall (R)
58th (1903–1905) Burleigh F. Spalding (R)
59th (1905–1907) Asle Gronna (R)
60th (1907–1909)
61st (1909–1911) L. B. Hanna (R)
62nd (1911–1913) Henry Thomas Helgesen (R)
Congress 1st district 2nd district 3rd district
63rd (1913–1915) Henry Thomas Helgesen (R) George M. Young (R) Patrick Daniel Norton (R)
64th (1915–1917)
65th (1917–1919)
John Miller Baer (R)
66th (1919–1921) James H. Sinclair (R)
67th (1921–1923) Olger B. Burtness (R)
68th (1923–1925)
Thomas Hall (R)
69th (1925–1927)
70th (1927–1929)
71st (1929–1931)
72nd (1931–1933)
Congress 1st at-large seat 2nd at-large seat
73rd (1933–1935) James H. Sinclair (R) William Lemke (R-NPL)
74th (1935–1937) Usher L. Burdick (R-NPL)
75th (1937–1939)
76th (1939–1941)
77th (1941–1943) Charles R. Robertson (R)
78th (1943–1945) William Lemke (R-NPL)
79th (1945–1947) Charles R. Robertson (R)
80th (1947–1949)
81st (1949–1951) Usher L. Burdick (R-NPL)
82nd (1951–1953) Fred G. Aandahl (R)
83rd (1953–1955) Otto Krueger (R)
84th (1955–1957)
85th (1957–1959)
86th (1959–1961) Quentin Burdick (D-NPL) Don L. Short (R)
87th (1961–1963) Hjalmar Carl Nygaard (R)
Congress 1st district 2nd district
88th (1963–1965) Hjalmar Carl Nygaard (R) Don L. Short (R)
Mark Andrews (R)
89th (1965–1967) Rolland W. Redlin (D-NPL)
90th (1967–1969) Thomas S. Kleppe (R)
91st (1969–1971)
92nd (1971–1973) Arthur A. Link (D-NPL)
Congress At-large seat
93rd (1973–1975) Mark Andrews (R)
94th (1975–1977)
95th (1977–1979)
96th (1979–1981)
97th (1981–1983) Byron Dorgan (D-NPL)
98th (1983–1985)
99th (1985–1987)
100th (1987–1989)
101st (1989–1991)
102nd (1991–1993)
103rd (1993–1995) Earl Pomeroy (D-NPL)
104th (1995–1997)
105th (1997–1999)
106th (1999–2001)
107th (2001–2003)
108th (2003–2005)
109th (2005–2007)
110th (2007–2009)
111th (2009–2011)
112th (2011-2013) Rick Berg (R)
113th (2013–2015) Kevin Cramer (R)
114th (2015–2017)
115th (2017–2019)
116th (2019–2021) Kelly Armstrong (R)
117th (2021–2023)
Congress At-large seat

Key

Democratic (D)
Democratic–NPL (D–NPL)
Nonpartisan League (NPL)
Republican (R)