United States congressional delegations from Colorado

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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[edit]

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[edit]

Current U.S. Senators from the State of Colorado

CPVI (2022):[1]
Class II senator Class III senator
John Hickenlooper, official portrait, 117th Congress (cropped).jpeg
John Hickenlooper
Junior senator
Michael Bennet Official Photo (cropped).jpg
Michael Bennet
Senior senator
Party Democratic Democratic
Incumbent since January 3, 2021 January 21, 2009

United States House of Representatives[edit]

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.

U.S. Representatives from the State of Colorado 2023-2025
District Member
Party Incumbent since CPVI
District map
1st Diana DeGette official photo (cropped).jpg
Diana DeGette
Democratic January 3, 1997 D+29 Map of the Colorado 1st Congressional District since 2023
2nd Joe Neguse, official portrait, 116th Congress.jpg
Joe Neguse
Democratic January 3, 2019 D+17 Map of the Colorado 2nd Congressional District since 2023
3rd Lauren Boebert 117th U.S Congress.jpg
Lauren Boebert
Republican January 3, 2021 R+7 Map of the Colorado 3rd Congressional District since 2023
4th Ken Buck official congressional photo (cropped 2).jpg
Ken Buck
Republican January 3, 2015 R+13 Map of the Colorado 4th Congressional District since 2023
5th Doug Lamborn Official Portrait 118th.jpg
Doug Lamborn
(Colorado Springs)
Republican January 3, 2007 R+9 Map of the Colorado 5th Congressional District since 2023
6th Jason Crow, official portrait, 116th Congress.jpg
Jason Crow
Democratic January 3, 2019 D+9 Map of the Colorado 6th Congressional District since 2023
7th Member Profiles - Rep. Brittany Pettersen - 118th Congress.jpg
Brittany Pettersen
Democratic January 3, 2023 D+4 Map of the Colorado 7th Congressional District since 2023
8th Rep. Yadira Caraveo - 118th Congress.jpg
Yadira Caraveo
Democratic January 3, 2023 EVEN Map of the Colorado 8th Congressional District since 2023

United States Senate[edit]

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[edit]

1861–1876: 1 non-voting delegate[edit]

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[edit]

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[edit]

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[edit]

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[edit]

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

1973–1983: 5 seats[edit]

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[edit]

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
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[edit]

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

Congress District
1st 2nd 3rd 4th 5th 6th 7th
108th (2003–2005) Diana DeGette
Mark Udall (D) Scott McInnis (R) Marilyn
Joel Hefley (R) Tom Tancredo
Bob Beauprez
109th (2005–2007) John Salazar (D)
110th (2007–2009) Doug Lamborn
Ed Perlmutter
111th (2009–2011) Jared Polis (D) Betsy Markey (D) Mike Coffman
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[edit]

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)


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

See also[edit]


  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.