- Lead
- 81,216
- Total
- 406,969
- vs nation
- R+18.5
Missouri 3rd Congressional District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 73,210
- Total
- 397,495
- vs nation
- R+22.9
- Lead
- 87,758
- Total
- 364,184
- vs nation
- R+26.2
- Lead
- 57,152
- Total
- 338,371
- vs nation
- R+20.7
- Lead
- 18,305
- Total
- 351,360
- vs nation
- R+12.5
- Lead
- 40,058
- Total
- 310,009
- vs nation
- R+10.5
- Lead
- 21,320
- Total
- 250,501
- vs nation
- R+9.0
- Lead
- 3,086
- Total
- 208,657
- vs nation
- R+7.0
Key facts
- 2024 presidential margin
- R+20.0MIT Election Lab
- Population
- 768,7842024 5-year
- Population density
- 130 / sq mi2024 5-year · TIGER/Line
- Land area
- 5,923 sq miTIGER/Line
- Median household income
- $82,9462024 5-year
- White (non-Hispanic)
- 82.4%2024 5-year
- Black
- 5.7%2024 5-year
- Hispanic / Latino
- 3.7%2024 5-year
- Peak Democratic margin
- D+44.5 in 1932MIT Election Lab
- Peak Republican margin
- R+29.2 in 1984MIT Election Lab
- Most similar
- Congressional District 6, MO · twin score 88.3
presidential history
Party record book
Missouri 3rd Congressional District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1932
71.7%
56,419 votes · D+44.5 · modeled estimate
Runner-up · Samuel J. Tilden, 1876 · 67.8%
Republican
Ronald Reagan1984
64.3%
106,032 votes · R+29.2 · modeled estimate
Runner-up · Richard Nixon, 1972 · 63.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
164,016votes
46.7% of the vote · R+5.2 · modeled estimate
Runner-up · Kamala Harris, 2024 · 159,769 votes
Republican
Donald Trump2024
240,985votes
59.2% of the vote · R+20.0 · modeled estimate
Runner-up · Donald Trump, 2020 · 231,323 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
John W. Davis1924
+42.9pts D vs U.S.
Place D+17.7 · U.S. R+25.2 · modeled estimate
Runner-up · Alton B. Parker, 1904 · +39.5 pts
Republican
Donald Trump2016
+26.2pts R vs U.S.
Place R+24.1 · U.S. D+2.1 · modeled estimate
Runner-up · Donald Trump, 2020 · +22.9 pts
Current officeholders
Federal officeholders only. State and local officeholders are planned for the next data pass.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
Missouri's 3rd stretches across the Ozark Plateau and surrounding rural counties, where Republican presidential candidates have carried the district by margins exceeding 35 points in recent cycles, reflecting a broadly conservative, small-town electorate.
Across the recorded series it reached a Democratic high of 44.5 points in 1932 and a Republican high of 29.2 points in 1984. Between 2020 and 2024 the district moved 1.5 points toward the Republican candidate; the 2024 margin was 20.0 points.
A population of 768,784, a 82% non-Hispanic-white share, and a median household income of $82,946 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 6 and Congressional District 15.
The congressional districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Missouri 3rd Congressional District. Akashic. https://akashic.app/cd/2903/. Accessed May 20, 2026. License: CC BY 4.0.