United States Senate
| Current U.S. senators from Washington | ||||
|---|---|---|---|---|
Washington
| Class I senator | Class III senator | ||
 Maria Cantwell (Junior senator) (Edmonds) |  Patty Murray (Senior senator) (Freeland) | |||
| Party | Democratic | Democratic | ||
| Incumbent since | January 3, 2001 | January 3, 1993 | ||
| Class I senator | Congress | Class III senator | ||
|---|---|---|---|---|
| John B. Allen (R) | 51st (1889–1891) | Watson C. Squire (R) | ||
| 52nd (1891–1893) | ||||
| vacant | 53rd (1893–1895) | |||
| John L. Wilson (R) | ||||
| 54th (1895–1897) | ||||
| 55th (1897–1899) | George Turner (D) | |||
| Addison G. Foster (R) | 56th (1899–1901) | |||
| 57th (1901–1903) | ||||
| 58th (1903–1905) | Levi Ankeny (R) | |||
| Samuel H. Piles (R) | 59th (1905–1907) | |||
| 60th (1907–1909) | ||||
| 61st (1909–1911) | Wesley L. Jones (R) | |||
| Miles Poindexter (R) | 62nd (1911–1913) | |||
| Miles Poindexter (Prog) | 63rd (1913–1915) | |||
| Miles Poindexter (R) | 64th (1915–1917) | |||
| 65th (1917–1919) | ||||
| 66th (1919–1921) | ||||
| 67th (1921–1923) | ||||
| Clarence Dill (D) | 68th (1923–1925) | |||
| 69th (1925–1927) | ||||
| 70th (1927–1929) | ||||
| 71st (1929–1931) | ||||
| 72nd (1931–1933) | ||||
| Elijah S. Grammer (R) | ||||
| 73rd (1933–1935) | Homer Bone (D) | |||
| Lewis B. Schwellenbach (D) | 74th (1935–1937) | |||
| 75th (1937–1939) | ||||
| 76th (1939–1941) | ||||
| Monrad Wallgren (D) | ||||
| 77th (1941–1943) | ||||
| 78th (1943–1945) | ||||
| Warren Magnuson (D) | ||||
| 79th (1945–1947) | ||||
| Hugh Mitchell (D) | ||||
| Harry P. Cain (R) | ||||
| 80th (1947–1949) | ||||
| 81st (1949–1951) | ||||
| 82nd (1951–1953) | ||||
| Henry M. Jackson (D) | 83rd (1953–1955) | |||
| 84th (1955–1957) | ||||
| 85th (1957–1959) | ||||
| 86th (1959–1961) | ||||
| 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) | Slade Gorton (R) | |||
| 98th (1983–1985) | ||||
| Daniel J. Evans (R) | ||||
| 99th (1985–1987) | ||||
| 100th (1987–1989) | Brock Adams (D) | |||
| Slade Gorton (R) | 101st (1989–1991) | |||
| 102nd (1991–1993) | ||||
| 103rd (1993–1995) | Patty Murray (D) | |||
| 104th (1995–1997) | ||||
| 105th (1997–1999) | ||||
| 106th (1999–2001) | ||||
| Maria Cantwell (D) | 107th (2001–2003) | |||
| 108th (2003–2005) | ||||
| 109th (2005–2007) | ||||
| 110th (2007–2009) | ||||
| 111th (2009–2011) | ||||
| 112th (2011–2013) | ||||
| 113th (2013–2015) | ||||
| 114th (2015–2017) | ||||
| 115th (2017–2019) | ||||
| 116th (2019–2021) | ||||
| 117th (2021–2023) | ||||
| 118th (2023–2025) | ||||
| 119th (2025–2027) | ||||
| Class I senator | Congress | Class III senator | ||
