United States congressional delegations from Colorado

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 senatorClass III senator

John Hickenlooper
Junior senator
(Denver)

Michael Bennet
Senior senator
(Denver)
PartyDemocraticDemocratic
Incumbent sinceJanuary 3, 2021January 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
DistrictMember
(Residence)[2]
PartyIncumbent sinceCPVI
(2022)[3]
District map
1st
Diana DeGette
(Denver)
DemocraticJanuary 3, 1997D+29
2nd
Joe Neguse
(Lafayette)
DemocraticJanuary 3, 2019D+17
3rd
Lauren Boebert
(Silt)
RepublicanJanuary 3, 2021R+7
4th
Greg Lopez
(Elizabeth)
RepublicanJune 25, 2024R+13
5th
Doug Lamborn
(Colorado Springs)
RepublicanJanuary 3, 2007R+9
6th
Jason Crow
(Aurora)
DemocraticJanuary 3, 2019D+9
7th
Brittany Pettersen
(Lakewood)
DemocraticJanuary 3, 2023D+4
8th
Yadira Caraveo
(Thornton)
DemocraticJanuary 3, 2023EVEN

United States Senate

United States House of Representatives

1861–1876: 1 non-voting delegate

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

CongressDelegate 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.

CongressAt-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.

Congress1st district2nd district
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.

Congress1st district2nd districtAt-large
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.

CongressDistrictAt-large
1st2ndSeat ASeat 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 district4th 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)
Congress1st2nd3rd4th
District

1973–1983: 5 seats

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

Congress1st district2nd district3rd district4th district5th district
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.

CongressDistrict
1st2nd3rd4th5th6th
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.

CongressDistrict
1st2nd3rd4th5th6th7th
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.

CongressDistrict
1st2nd3rd4th5th6th7th8th
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)
Greg Lopez (R)

Key

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

See also

References