thumb|right|upright=1.2|alt=refer to caption|Map showing the location of Wyoming within the United States.
Wyoming has sent congressional delegations to the United States Senate and United States House of Representatives since it became a state in 1890. Before becoming a state, the Wyoming Territory elected a non-voting delegate at-large to Congress, beginning with the 41st United States Congress in 1869. Wyoming first sent a voting representative to Congress in the 51st United States Congress, following its statehood. Currently, Wyoming is represented in the Senate by John Barrasso and Cynthia Lummis. Wyoming has had one representative in the House since its statehood.
Current delegation
{| class="wikitable floatright" style="text-align: center;"
|+ Current U.S. senators from Wyoming
|-
! scope="row" rowspan=2 | <br/><br/>
{| class="wikitable"
! CPVI :
|-
|
|}
! scope="col" | Class I senator
! scope="col" | Class II senator
|- style="vertical-align: top;"
| frameless|upright=0.5|alt=Photograph of John Barrasso, the current senior senator from the state of Wyoming<br/>John Barrasso<br/><br>
| frameless|upright=0.5|alt=Photograph of Cynthia Lummis, the current junior senator from the state of Wyoming<br/>Cynthia Lummis<br/><br>
|-
! scope="row" | Party
|
|
|-
! scope="row" | Incumbent since
| June 25, 2007
| January 3, 2021
|}
Wyoming's current congressional delegation in the 119th United States Congress consists of two senators, John Barrasso and Cynthia Lummis, and one representative, Harriet Hageman, all of whom are Republicans. The state has had two senators and one voting representative in the House of Representatives since its statehood in 1890. For each district or state, the CPVI measures the party leaning (Democratic or Republican) and the number of percentage points more partisan than the national average. For instance, a rating of R+4 would mean the district or state voted four percentage points more Republican than the national average, while a rating of D+9 would mean the district or state voted nine points more Democratic than the national average. As of 2025, the CPVI rated Wyoming as leaning Republican at R+23.
{| class="wikitable"
|-
|+ Current U.S. representative from Wyoming
|-
! scope="col" | District
! scope="col" | Member<br />
! scope="col" | Party
! scope="col" data-sort-type="date" | Incumbent since
! scope="col" data-sort-type="number" | CPVI<br />
! scope="col" class="unsortable" | District map
|-
! scope="row" |
| data-sort-value="Hageman, Harriet" | frameless|upright=0.4|alt=Photograph of Harriet Hageman, the current House of Representatives member from Wyoming's at-large district<br />Harriet Hageman<br />
|
| January 3, 2023
|
| frameless|upright=0.7|alt=Map of the state of Wyoming
|-
|}<section end="Current representatives"/>
United States Senate
| rowspan="4" |
! scope="row" rowspan="2" | 53rd (1893–1895)
|- style="height:1.5em"
| rowspan="12" | Clarence D. Clark (R)
|- style="height:2em"
! scope="row" | 54th (1895–1897)
| rowspan="3" |
| rowspan="18" | Francis E. Warren (R)
|- style="height:2em"
! scope="row" | 55th (1897–1899)
|- style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
! scope="row" | 56th (1899–1901)
|- style="height:2em"
! scope="row" | 57th (1901–1903)
| rowspan="3" style="background: #D3D3D3"|
|- style="height:2em"
! scope="row" | 58th (1903–1905)
|- style="height:2em"
| rowspan="3" |
! scope="row" | 59th (1905–1907)
|- style="height:2em"
! scope="row" | 60th (1907–1909)
| rowspan="3" |
|- style="height:2em"
! scope="row" | 61st (1909–1911)
|- style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
! scope="row" | 62nd (1911–1913)
|- style="height:2em"
! scope="row" | 63rd (1913–1915)
| rowspan="3" style="background: #D3D3D3"|
|- style="height:2em"
! scope="row" | 64th (1915–1917)
|- style="height:2em"
| rowspan="11" | John B. Kendrick (D)
| rowspan="3" |
! scope="row" | 65th (1917–1919)
|- style="height:2em"
! scope="row" | 66th (1919–1921)
| rowspan="3" |
|- style="height:2em"
! scope="row" | 67th (1921–1923)
|- style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
! scope="row" | 68th (1923–1925)
|- style="height:2em"
! scope="row" | 69th (1925–1927)
| rowspan="5" style="background: #D3D3D3"|
|- style="height:2em"
! scope="row" | 70th (1927–1929)
|- style="height:1.25em"
| rowspan="6" |
! scope="row" rowspan="3" | 71st (1929–1931)
|- style="height:2em"
| | Patrick Joseph Sullivan (R)
|- style="height:1.25em"
| rowspan="5" | Robert D. Carey (R)
|- style="height:2em"
! scope="row" | 72nd (1931–1933)
| rowspan="4" style="background: #D3D3D3"|
|- style="height:1.5em"
! scope="row" rowspan="2" | 73rd (1933–1935)
|- style="height:1.5em"
| rowspan="10" | Joseph C. O'Mahoney (D)
|- style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
! scope="row" | 74th (1935–1937)
|- style="height:2em"
! scope="row" | 75th (1937–1939)
| rowspan="3" |
| rowspan="3" | Harry Schwartz (D)
|- style="height:2em"
! scope="row" | 76th (1939–1941)
|- style="height:2em"
| rowspan="3" |
! scope="row" | 77th (1941–1943)
|- style="height:2em"
! scope="row" | 78th (1943–1945)
| rowspan="3" style="background: #D3D3D3"|
| rowspan="3" | Edward V. Robertson (R)
|- style="height:2em"
! scope="row" | 79th (1945–1947)
|- style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
! scope="row" | 80th (1947–1949)
|- style="height:2em"
! scope="row" | 81st (1949–1951)
| rowspan="5" |
| rowspan="3" | Lester C. Hunt (D)
|- style="height:2em"
! scope="row" | 82nd (1951–1953)
|- style="height:1.25em"
| rowspan="5" | Frank A. Barrett (R)
| rowspan="5" |
! scope="row" rowspan="3" | 83rd (1953–1955)
|- style="height:2em"
| | Edward D. Crippa (R)
|- style="height:1.25em"
| rowspan="4" | Joseph C. O'Mahoney (D)
|- style="height:2em"
! scope="row" | 84th (1955–1957)
| rowspan="3" style="background: #D3D3D3"|
|- style="height:2em"
! scope="row" | 85th (1957–1959)
|- style="height:2em"
| rowspan="10" | Gale W. McGee (D)
| rowspan="4" style="background: #D3D3D3"|
! scope="row" | 86th (1959–1961)
|- style="height:2em"
! scope="row" rowspan="2" | 87th (1961–1963)
| rowspan="4" |
| | Joe Hickey (D)
|- style="height:1.25em"
| rowspan="3" | Milward Simpson (R)
|- style="height:2em"
! scope="row" | 88th (1963–1965)
|- style="height:2em"
| rowspan="3" |
! scope="row" | 89th (1965–1967)
|- style="height:2em"
! scope="row" | 90th (1967–1969)
| rowspan="3" style="background: #D3D3D3"|
| rowspan="6" | Clifford Hansen (R)
|- style="height:2em"
! scope="row" | 91st (1969–1971)
|- style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
! scope="row" | 92nd (1971–1973)
|- style="height:2em"
! scope="row" | 93rd (1973–1975)
| rowspan="4" |
|- style="height:2em"
! scope="row" | 94th (1975–1977)
|- style="height:1.25em"
| rowspan="10" | Malcolm Wallop (R)
| rowspan="4" |
! scope="row" rowspan="2" | 95th (1977–1979)
|- style="height:1.25em"
| rowspan="10" | Alan Simpson (R)
|- style="height:2em"
! scope="row" | 96th (1979–1981)
| rowspan="3" style="background: #D3D3D3"|
|- style="height:2em"
! scope="row" | 97th (1981–1983)
|- style="height:2em"
| rowspan="3" style="background: #D3D3D3"|
! scope="row" | 98th (1983–1985)
|- style="height:2em"
! scope="row" | 99th (1985–1987)
| rowspan="3" |
|- style="height:2em"
! scope="row" | 100th (1987–1989)
|- style="height:2em"
| rowspan="3" |
! scope="row" | 101st (1989–1991)
|- style="height:2em"
! scope="row" | 102nd (1991–1993)
| rowspan="3" style="background: #D3D3D3"|
|- style="height:2em"
! scope="row" | 103rd (1993–1995)
|- style="height:2em"
| rowspan="7" | Craig L. Thomas (R)
| rowspan="3" style="background: #D3D3D3"|
! scope="row" | 104th (1995–1997)
|- style="height:2em"
! scope="row" | 105th (1997–1999)
| rowspan="3" |
| rowspan="13" | Mike Enzi (R)
|- style="height:2em"
! scope="row" | 106th (1999–2001)
|- style="height:2em"
| rowspan="3" |
! scope="row" | 107th (2001–2003)
|- style="height:2em"
! scope="row" | 108th (2003–2005)
| rowspan="4" style="background: #D3D3D3" |
|- style="height:2em"
! scope="row" | 109th (2005–2007)
|- style=height:1.25em
| rowspan="4" style="background: #D3D3D3" |
! scope="row" rowspan="2" |110th (2007–2009)
|- style="height:1.25em"
| rowspan="10" | John Barrasso (R)
|- style="height:2em" align="center"
! scope="row" | 111th (2009–2011)
| rowspan="3" |
|- style="height:2em" align="center"
! scope="row" | 112th (2011–2013)
|- style="height:2em" align="center"
| rowspan="3" |
! scope="row" | 113th (2013–2015)
|- style="height:2em" align="center"
! scope="row" | 114th (2015–2017)
| rowspan="3" style="background: #D3D3D3"|
|- style="height:2em" align="center"
! scope="row" | 115th (2017–2019)
|- style="height:2em" align="center"
| rowspan="3" style="background: #D3D3D3"|
! scope="row" | 116th (2019–2021)
|- style="height:2em" align="center"
! scope="row" | 117th (2021–2023)
| rowspan="3"|
| rowspan="3" | Cynthia Lummis (R)
|- style="height:2em" align="center"
! scope="row" | 118th (2023–2025)
|- style="height:2em" align="center"
| rowspan="1"|
! scope="row" | 119th (2025–2027)
|}
United States House of Representatives
Twenty-seven people have represented Wyoming in the House of Representatives, including nineteen Republicans and eight Democrats. Of those, seven represented Wyoming as a non-voting delegate prior to Wyoming's statehood in 1890. The most recent four, Barbara Cubin, Cynthia Lummis, Liz Cheney, and Harriet Hageman, have all been women; they are also the only representatives from Wyoming to have been women.
Many representatives from Wyoming have held important roles in the House. For instance, Frank W. Mondell was the House Majority Leader for the 66th and 67th United States Congress; additionally, Liz Cheney chaired the House Republican Conference and served as vice chair on the January 6th Committee. Others have gone on to serve in other political offices; for example, Dick Cheney resigned from the House to become the Secretary of Defense in the George H. W. Bush administration, and later became Vice President of the United States in the George W. Bush administration.
Each district uses a popular vote to elect a member of its delegation in the House of Representatives. Districts are redrawn every ten years, after data from the US Census is collected. Wyoming has had one district representing the entire state since its statehood.
{| class="wikitable sticky-header" style="text-align:center"
|+ Members of the House of Representatives from the State of Wyoming from 1890 to present
|- style="height:2.5em"
! scope="row" | 93rd (1973–1975)
|- style="height:2.5em"
! scope="row" | 94th (1975–1977)
|- style="height:2.5em"
! scope="row" rowspan=2 | 95th (1977–1979)
|- style="height:2em"
| | vacant
|- style="height:2.5em"
! scope="row" | 97th (1981–1983)
|- style="height:2.5em"
! scope="row" | 98th (1983–1985)
|- style="height:2.5em"
! scope="row" | 99th (1985–1987)
|- style="height:2.5em"
! scope="row" | 100th (1987–1989)
|- style="height:1.5em"
! scope="row" rowspan=2 | 101st (1989–1991)
|- style="height:1.5em"
| rowspan=3 | Craig L. Thomas (R)
|- style="height:2.5em"
! scope="row" | 102nd (1991–1993)
|- style="height:2.5em"
! scope="row" | 103rd (1993–1995)
|- style="height:2.5em"
! scope="row" | 104th (1995–1997)
| rowspan=7 | Barbara Cubin (R)
|- style="height:2.5em"
! scope="row" | 105th (1997–1999)
|- style="height:2.5em"
! scope="row" | 106th (1999–2001)
|- style="height:2.5em"
! scope="row" | 107th (2001–2003)
|- style="height:2.5em"
! scope="row" | 108th (2003–2005)
|- style="height:2.5em"
! scope="row" | 109th (2005–2007)
|- style="height:2.5em"
! scope="row" | 110th (2007–2009)
|- style="height:2.5em"
! scope="row" | 111th (2009–2011)
| rowspan=4| Cynthia Lummis (R)
|- style="height:2.5em"
! scope="row" | 112th (2011–2013)
|- style="height:2.5em"
! scope="row" | 113th (2013–2015)
|- style="height:2.5em"
! scope="row" | 114th (2015–2017)
|- style="height:2.5em"
! scope="row" | 115th (2017–2019)
| rowspan=3| Liz Cheney (R)
|- style="height:2.5em"
! scope="row" | 116th (2019–2021)
|- style="height:2.5em"
! scope="row" | 117th (2021–2023)
|- style="height:2.5em"
! scope="row" | 118th (2023–2025)
| rowspan=2 | Harriet Hageman (R)
|- style="height:2.5em"
! scope="row" | 119th (2025–2027)
|}
See also
- List of United States congressional districts
- Wyoming's congressional districts
- Political party strength in Wyoming