Missouri's 3rd Congressional District

Missouri's 3rd Congressional District elects one member to the U.S. House of Representatives. Below is the district's current representative, the members of Congress who held this seat before, and Missouri's two U.S. Senators.

Current Representative

Robert Onder (Republican) currently represents Missouri's 3rd Congressional District. See Robert Onder's full voting record and key issue positions →

District History — Past Representatives

Members of Congress who previously represented Missouri's 3rd Congressional District:

• Blaine Luetkemeyer — Republican (until 2025)
• Russ Carnahan — Democrat (until 2013)
• Richard Gephardt — Democrat (until 2005)
• Leonor Sullivan — Democrat (until 1977)
• Philip Welch — Democrat (until 1953)
• Richard Duncan — Democrat (until 1943)
• Henry Lawrence — Republican (until 1923)
• Joshua Alexander — Democrat (until 1921)
• Frank Klepper — Republican (until 1907)
• John Dougherty — Democrat (until 1905)

Missouri U.S. Senators

• Joshua Hawley — Republican Senator
• Eric Schmitt — Republican Senator
• Roy Blunt — Republican Senator
• Claire McCaskill — Democrat Senator
• Christopher Bond — Republican Senator
• James Talent — Republican Senator
• Jean Carnahan — Democrat Senator
• John Ashcroft — Republican Senator
• John Danforth — Republican Senator
• Thomas Eagleton — Democrat Senator
• William Symington — Democrat Senator
• Edward Long — Democrat Senator
• Thomas Hennings — Democrat Senator
• James Kem — Republican Senator
• Forrest Donnell — Republican Senator
• Frank Briggs — Democrat Senator
• Harry Truman — Democrat Senator
• Joel Clark — Democrat Senator
• Roscoe Patterson — Republican Senator
• Harry Hawes — Democrat Senator
• James Reed — Democrat Senator
• George Williams — Republican Senator
• Selden Spencer — Republican Senator
• William Stone — Democrat Senator
• Xenophon Wilfley — Democrat Senator
• William Warner — Republican Senator
• Francis Cockrell — Democrat Senator
• George Vest — Democrat Senator
• David Armstrong — Democrat Senator
• James Shields — Democrat Senator
• Lewis Bogy — Democrat Senator
• Carl Schurz — Liberal Republican Senator
• Francis Blair — Democrat Senator
• Daniel Jewett — Republican Senator
• Charles Drake — Republican Senator
• John Henderson — Republican Senator
• Benjamin Brown — Republican Senator
• Robert Wilson — Unionist Senator
• Waldo Johnson — Democrat Senator
• Trusten Polk — Democrat Senator
• James Green — Democrat Senator
• Henry Geyer — Ind. Republican-Democrat Senator
• David Atchison — Democrat Senator
• Lewis Linn — Democrat Senator
• Alexander Buckner — Jackson Senator
• David Barton — Adams Senator

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