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U.S. House of Representatives, 119th Congress

Missouri's 3rd Congressional District

As of October 19, 2026, Missouri's 3rd congressional district (MO-3) is represented in the U.S. House of Representatives by Bob Onder, a Republican who has served in the House since 2025. The seat is on the ballot on Tuesday, November 3, 2026, as every House seat is every two years; the current term ends January 3, 2027. As of Monday, October 19, 2026, Election Day is 15 days away. Referandom does not list candidates; the Missouri election office publishes them.

Representative Serving Now

How Did Bob Onder Vote?

As of September 16, 2026, Bob Onder (R-MO) has voted Yea or Nay on 321 of the 335 bills and resolutions that came to a deciding roll call in the House in the 119th Congress and missed 14 (4.2%). Onder voted with the majority of Republicans 92% of the time.

From the roll calls of the Clerk of the House. Every Vote by Robert F. Onder, Jr. →

On the Ballot November 3, 2026

  • The seat is on the ballot on Tuesday, November 3, 2026, as every House seat is every two years; the current term ends January 3, 2027.
  • Referandom does not list candidates, polls or forecasts; the Missouri election office publishes the candidates.
  • District lines are drawn by each state and can change between elections. This is the district of the 119th Congress; the state or local election office can tell you which district you vote in.

2026 Elections in Missouri → Every Seat on the Ballot in 2026 →

Other Districts in Missouri

Missouri's Senators

Senators represent the whole state, every district alike.

Questions About Missouri's 3rd Congressional District

  • Who Represents Missouri's 3rd Congressional District?

    As of October 19, 2026, Missouri's 3rd congressional district (MO-3) is represented in the U.S. House of Representatives by Bob Onder, a Republican who has served in the House since 2025.

  • Is Missouri's 3rd Congressional District on the Ballot in 2026?

    Yes. The seat is on the ballot on Tuesday, November 3, 2026, as every House seat is every two years; the current term ends January 3, 2027. Referandom does not list candidates; the Missouri election office publishes them.

  • How Did Bob Onder Vote?

    As of September 16, 2026, Bob Onder (R-MO) has voted Yea or Nay on 321 of the 335 bills and resolutions that came to a deciding roll call in the House in the 119th Congress and missed 14 (4.2%). Onder voted with the majority of Republicans 92% of the time.

  • How Many Congressional Districts Does Missouri Have?

    Missouri has 8 congressional districts in the 119th Congress, each with one seat in the House of Representatives. Its senators are Josh Hawley (R) and Eric Schmitt (R).

More About Missouri in Congress

Members, seats and terms from Congress.gov, the Clerk of the House and the congress-legislators project; votes from the Clerk's roll calls, current through .

Cite This Page

Referandom. (2026, September 16). Missouri's 3rd Congressional District: Who Represents It. CDR Technology Foundation, Inc. Retrieved October 19, 2026, from https://www.referandom.us/districts/mo-3