2026 results · Missouri · Missouri 3rd District
Bob Onder, the Republican, wins re-election in Missouri's 3rd District
Donald Trump carried the district by 26.4 points in 2024; this year's count is a 17.9-point move toward the Democrats.
| Candidate | Votes | Share | Share of the vote |
|---|---|---|---|
| Bob OnderRepublican, incumbent | 149,239 | 52.9% | |
| Bethany MannDemocrat | 125,271 | 44.4% | |
| Jim HigginsLibertarian | 7,700 | 2.7% |
Called by Call the Map, Nov 4, 10:46 AM EST · 92% counted.
About 92% of the expected vote counted282,210 votesCount last changed Nov 7, 1:02 PM EST · checked Nov 7, 5:07 PM ESTSource: the official state and county counts, gathered by civicAPI
The map
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About the seat
Missouri's 3rd District takes in all or part of 16 counties. The Republicans held it before this election. Its voters went R+26.4 for president in 2024. Its move from that vote, 17.9 points toward the Democrats, ranks 3 of 8 among the state's districts, counting from the largest move toward the Democrats.
- 2024 president
- R+26.4
- 2024 House race, same lines
- R+26.9
- Move from 2024, rank in state
- 3 of 8
- St. Charles County43%
- Boone County14%
- Cole County10%
- Jefferson County9%
- Callaway County5%
- Miller County3%
- Crawford County2%
- Washington County2%
- 8 more13%
Shares are of the votes counted this year. The 2024 House figure is the same district, on the same lines.
What the count shows
Added together, the 16 counties compared moved 17.9 points toward the Democrats from the 2024 presidential vote.
The counties compared cast 69% as many votes as in 2024, from 196% in Warren County to 56% in Washington County.
Jefferson County moved most: R+41.1 for president in 2024, R+19.1 this year
The 10 counties with the largest moves from the 2024 presidential vote, among those with 2,000 or more votes for president in 2024 and a quarter of that counted. Each line runs from the 2024 margin to this year’s.
2024 president 2026
St. Charles County added 27,219 net votes for Mann against the 2024 margin, 32% of the district's change
Across the 16 counties compared, the margin moved by 83,941 votes toward Mann: this year’s lead in votes against the 2024 presidential lead in votes, county by county. The figure counts voters who changed sides and differences in who turned out alike; the count cannot tell them apart.
- St. Charles County+27,219 Mann
- Jefferson County+10,666 Mann
- Cole County+8,679 Mann
- Callaway County+5,888 Mann
- Boone County+5,320 Mann
- Miller County+4,770 Mann
- Washington County+4,067 Mann
- Crawford County+3,689 Mann
1 county Donald Trump carried in 2024 is led by Mann this year
Striped on the map above. Largest first.
- St. Charles CountyR+14.8D+1.8
Missouri’s ballot
All of Missouri’s resultsThe state legislatureBallot measures
The seat that changed party
U.S. HouseBefore the election R 6–2, now R 5–3
won leads, still counting changed party. Margins are the leader’s share minus the runner-up’s, in points.
Every count on this page is the official count, from the state and its counties. Counts are unofficial until the state certifies them. The 2024 comparison is the presidential vote, Kamala Harris against Donald Trump, on the same ground. Margins are the Democrat minus the Republican, in points of all votes.