Since Colorado became a U.S. state in 1876, it has sent congressional delegations to the United States Senate and United States House of Representatives. Each state elects two senators to serve for six years, and members of the House to two-year terms. Before becoming a state, the Colorado Territory elected a non-voting delegate at-large to Congress from 1861 to 1876.

These are tables of congressional delegations from Colorado to the United States Senate and the United States House of Representatives.

Current delegation

Colorado's current congressional delegation to the 118th Congress consists of two senators, both of whom are Democrats, and eight representatives comprising five Democrats and three Republicans.

United States Senate

Current U.S. senators from the State of Colorado
Colorado

CPVI (2022):[1]
D+4
Class II senator Class III senator

John Hickenlooper
Junior senator
(Denver)
Michael Bennet
Senior senator
(Denver)
Party Democratic Democratic
Incumbent since January 3, 2021 January 21, 2009

United States House of Representatives

The state of Colorado gained an eighth congressional seat beginning in 2023. The current dean of the Colorado delegation is Representative Diana DeGette of the 1st district, having served in the House since 1997.

Current U.S. representatives from Colorado
District Member
(Residence)[2] 		Party Incumbent since CPVI
(2022)[3] 		District map
1st
Diana DeGette
(Denver) 		Democratic January 3, 1997 D+29
2nd
Joe Neguse
(Lafayette) 		Democratic January 3, 2019 D+17
3rd
Lauren Boebert
(Silt) 		Republican January 3, 2021 R+7
4th Vacant March 22, 2024 R+13
5th
Doug Lamborn
(Colorado Springs) 		Republican January 3, 2007 R+9
6th
Jason Crow
(Aurora) 		Democratic January 3, 2019 D+9
7th
Brittany Pettersen
(Lakewood) 		Democratic January 3, 2023 D+4
8th
Yadira Caraveo
(Thornton) 		Democratic January 3, 2023 EVEN

United States Senate

Main article: List of United States senators from Colorado
Class II senator Congress Class III senator
Colorado statehood August 1, 1876
Henry M. Teller (R) 44th (1875–1877) Jerome B. Chaffee (R)
45th (1877–1879)
46th (1879–1881) Nathaniel P. Hill (R)
47th (1881–1883)
George M. Chilcott (R)
Horace Tabor (R)
Thomas M. Bowen (R) 48th (1883–1885)
49th (1885–1887) Henry M. Teller (R)
50th (1887–1889)
Edward O. Wolcott (R) 51st (1889–1891)
52nd (1891–1893)
53rd (1893–1895)
54th (1895–1897)
55th (1897–1899) Henry M. Teller (SvR)
56th (1899–1901)
Thomas M. Patterson (D) 57th (1901–1903)
58th (1903–1905) Henry M. Teller (D)
59th (1905–1907)
Simon Guggenheim (R) 60th (1907–1909)
61st (1909–1911) Charles J. Hughes Jr. (D)
62nd (1911–1913) Charles S. Thomas (D)
John F. Shafroth (D) 63rd (1913–1915)
64th (1915–1917)
65th (1917–1919)
Lawrence C. Phipps (R) 66th (1919–1921)
67th (1921–1923) Samuel D. Nicholson (R)
68th (1923–1925)
Alva B. Adams (D)
Rice W. Means (R)
69th (1925–1927)
70th (1927–1929) Charles W. Waterman (R)
71st (1929–1931)
Edward P. Costigan (D) 72nd (1931–1933)
Walter Walker (D)
Karl C. Schuyler (R)
73rd (1933–1935) Alva B. Adams (D)
74th (1935–1937)
Edwin C. Johnson (D) 75th (1937–1939)
76th (1939–1941)
77th (1941–1943)
Eugene Millikin (R)
78th (1943–1945)
79th (1945–1947)
80th (1947–1949)
81st (1949–1951)
82nd (1951–1953)
83rd (1953–1955)
Gordon Allott (R) 84th (1955–1957)
85th (1957–1959) John A. Carroll (D)
86th (1959–1961)
87th (1961–1963)
88th (1963–1965) Peter H. Dominick (R)
89th (1965–1967)
90th (1967–1969)
91st (1969–1971)
92nd (1971–1973)
Floyd Haskell (D) 93rd (1973–1975)
94th (1975–1977) Gary Hart (D)
95th (1977–1979)
William L. Armstrong (R) 96th (1979–1981)
97th (1981–1983)
98th (1983–1985)
99th (1985–1987)
100th (1987–1989) Tim Wirth (D)
101st (1989–1991)
Hank Brown (R) 102nd (1991–1993)
103rd (1993–1995) Ben Nighthorse Campbell (D)
104th (1995–1997) Ben Nighthorse Campbell (R)
Wayne Allard (R) 105th (1997–1999)
106th (1999–2001)
107th (2001–2003)
108th (2003–2005)
109th (2005–2007) Ken Salazar (D)
110th (2007–2009)
Mark Udall (D) 111th (2009–2011)
Michael Bennet (D)
112th (2011–2013)
113th (2013–2015)
Cory Gardner (R) 114th (2015–2017)
115th (2017–2019)
116th (2019–2021)
John Hickenlooper (D) 117th (2021–2023)
118th (2023–2025)

United States House of Representatives

Main article: List of United States representatives from Colorado

1861–1876: 1 non-voting delegate

Starting on August 19, 1861, the Territory of Colorado sent a non-voting delegate to the House.

Congress Delegate from
Territory's at-large district
37th (1861–1863) Hiram Pitt Bennet (Cons. R)
38th (1863–1865)
39th (1865–1867) Allen Alexander Bradford (R)
40th (1867–1869) George M. Chilcott (R)
41st (1869–1871) Allen Alexander Bradford (R)
42nd (1871–1873) Jerome B. Chaffee (R)
43rd (1873–1875)
44th (1875–1877) Thomas M. Patterson (D)

1876–1893: 1 seat

Following statehood on August 1, 1876, the state of Colorado was granted one seat in the House.

Congress At-large district
44th (1875–1877) James B. Belford (R)
45th (1877–1879)
Thomas M. Patterson (D)
46th (1879–1881) James B. Belford (R)
47th (1881–1883)
48th (1883–1885)
49th (1885–1887) George G. Symes (R)
50th (1887–1889)
51st (1889–1891) Hosea Townsend (R)
52nd (1891–1893)

1893–1903: 2 seats

Following the 1890 census, Colorado was apportioned with two seats.

Congress District
1st 2nd
53rd (1893–1895) Lafe Pence (Pop) John Calhoun Bell (Pop)
54th (1895–1897) John F. Shafroth (R)
55th (1897–1899) John F. Shafroth (Sv)
56th (1899–1901)
57th (1901–1903)

1903–1913: 3 seats

Following the 1900 census, Colorado was apportioned with three seats.

Congress District At-large
1st 2nd
58th (1903–1905) John F. Shafroth (D) Herschel M. Hogg (R) Franklin E. Brooks (R)
Robert W. Bonynge (R)
59th (1905–1907)
60th (1907–1909) Warren A. Haggott (R) George W. Cook (R)
61st (1909–1911) Atterson W. Rucker (D) John Andrew Martin (D) Edward T. Taylor (D)
62nd (1911–1913)

1913–1973: 4 seats

Following the 1910 census, Colorado was apportioned with four seats.

Congress District At-large
1st 2nd Seat A Seat B
63rd (1913–1915) George John Kindel (D) Harry H. Seldomridge (D) Edward Keating (D) Edward T. Taylor (D)
64th (1915–1917) Benjamin C. Hilliard (D) Charles B. Timberlake (R) 3rd district 4th district
Edward Keating (D) Edward T. Taylor (D)
65th (1917–1919)
66th (1919–1921) William N. Vaile (R) Guy U. Hardy (R)
67th (1921–1923)
68th (1923–1925)
69th (1925–1927)
70th (1927–1929)
S. Harrison White (D)
71st (1929–1931) William R. Eaton (R)
72nd (1931–1933)
73rd (1933–1935) Lawrence Lewis (D) Fred N. Cummings (D) John Andrew Martin (D)
74th (1935–1937)
75th (1937–1939)
76th (1939–1941)
William E. Burney (D)
77th (1941–1943) William S. Hill (R) John Chenoweth (R)
Robert F. Rockwell (R)
78th (1943–1945)
Dean M. Gillespie (R)
79th (1945–1947)
80th (1947–1949) John A. Carroll (D)
81st (1949–1951) John H. Marsalis (D) Wayne N. Aspinall (D)
82nd (1951–1953) Byron G. Rogers (D) John Chenoweth (R)
83rd (1953–1955)
84th (1955–1957)
85th (1957–1959)
86th (1959–1961) Byron L. Johnson (D)
87th (1961–1963) Peter H. Dominick (R)
88th (1963–1965) Donald G. Brotzman (R)
89th (1965–1967) Roy H. McVicker (D) Frank Evans (D)
90th (1967–1969) Donald G. Brotzman (R)
91st (1969–1971)
92nd (1971–1973) Mike McKevitt (R)
Congress 1st 2nd 3rd 4th
District

1973–1983: 5 seats

Following the 1970 census, Colorado was apportioned with five seats.

Congress District
1st 2nd 3rd 4th 5th
93rd (1973–1975) Pat Schroeder (D) Donald G. Brotzman (R) Frank Evans (D) James Johnson (R) William L. Armstrong (R)
94th (1975–1977) Tim Wirth (D)
95th (1977–1979)
96th (1979–1981) Ray Kogovsek (D) Ken Kramer (R)
97th (1981–1983) Hank Brown (R)

1983–2003: 6 seats

Following the 1980 census, Colorado was apportioned with six seats.

Congress District
1st 2nd 3rd 4th 5th 6th
98th (1983–1985) Pat Schroeder (D) Tim Wirth (D) Ray Kogovsek (D) Hank Brown (R) Ken Kramer (R) Daniel Schaefer (R)
99th (1985–1987) Mike Strang (R)
100th (1987–1989) David Skaggs (D) Ben Nighthorse
Campbell (D) 		Joel Hefley (R)
101st (1989–1991)
102nd (1991–1993) Wayne Allard (R)
103rd (1993–1995) Scott McInnis (R)
104th (1995–1997)
105th (1997–1999) Diana DeGette (D) Bob Schaffer (R)
106th (1999–2001) Mark Udall (D) Tom Tancredo (R)
107th (2001–2003)

2003–2023: 7 seats

Following the 2000 census, Colorado was apportioned with seven seats.

Congress District
1st 2nd 3rd 4th 5th 6th 7th
108th (2003–2005) Diana DeGette
(D) 		Mark Udall (D) Scott McInnis (R) Marilyn
Musgrave (R) 		Joel Hefley (R) Tom Tancredo
(R) 		Bob Beauprez
(R)
109th (2005–2007) John Salazar (D)
110th (2007–2009) Doug Lamborn
(R) 		Ed Perlmutter
(D)
111th (2009–2011) Jared Polis (D) Betsy Markey (D) Mike Coffman
(R)
112th (2011–2013) Scott Tipton (R) Cory Gardner (R)
113th (2013–2015)
114th (2015–2017) Ken Buck (R)
115th (2017–2019)
116th (2019–2021) Joe Neguse (D) Jason Crow (D)
117th (2021–2023) Lauren Boebert (R)

2023–present: 8 seats

Following the 2020 census, Colorado was apportioned with eight seats.

Congress District
1st 2nd 3rd 4th 5th 6th 7th 8th
118th (2023–2025) Diana DeGette (D) Joe Neguse (D) Lauren Boebert (R) Ken Buck (R) Doug Lamborn (R) Jason Crow (D) Brittany Pettersen (D) Yadira Caraveo (D)
Vacant

Key

Democratic (D)
Populist (Pop)
Republican (R)
Silver (Sv)
Silver Republican (SvR)

See also

References

  1. ^ "Cook Partisan Voting Index (Cook PVI) State List". The Cook Political Report with Amy Walter. 2022. Retrieved December 4, 2022.
  2. ^ "Office of the Clerk, U.S. House of Representatives". clerk.house.gov. Retrieved 2022-01-06.
  3. ^ "2022 Cook PVI: District Map and List". The Cook Political Report with Amy Walter. 2022. Retrieved December 4, 2022.
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