- Lead
- 8,263
- Total
- 97,772
- vs nation
- D+9.9
Missouri 1st State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 7,519
- Total
- 101,406
- vs nation
- D+3.0
- Lead
- 1,936
- Total
- 98,003
- vs nation
- R+4.1
- Lead
- 5,515
- Total
- 99,613
- vs nation
- R+9.4
- Lead
- 803
- Total
- 103,835
- vs nation
- R+6.5
- Lead
- 10,471
- Total
- 102,977
- vs nation
- R+7.7
- Lead
- 12,729
- Total
- 92,890
- vs nation
- R+14.2
- Lead
- 9,999
- Total
- 88,972
- vs nation
- R+19.8
Key facts
- 2024 presidential margin
- D+8.5MIT Election Lab
- Population
- 184,8532024 5-year
- Population density
- 3,232 / sq mi2024 5-year · TIGER/Line
- Land area
- 57.2 sq miTIGER/Line
- Median household income
- $84,7912024 5-year
- White (non-Hispanic)
- 85.8%2024 5-year
- Black
- 3.1%2024 5-year
- Hispanic / Latino
- 3.2%2024 5-year
- Peak Democratic margin
- D+8.5 in 2024MIT Election Lab
- Peak Republican margin
- R+39.1 in 1884MIT Election Lab
- Most similar
- State Senate District 24, MO · twin score 88.5
presidential history
Party record book
Missouri 1st State Senate 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
Kamala Harris2024
53.3%
52,099 votes · D+8.5 · modeled estimate
Runner-up · Joe Biden, 2020 · 52.8%
Republican
James G. Blaine1884
69.4%
812 votes · R+39.1 · modeled estimate
Runner-up · James A. Garfield, 1880 · 65.0%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
53,568votes
52.8% of the vote · D+7.4 · modeled estimate
Runner-up · Kamala Harris, 2024 · 52,099 votes
Republican
Ronald Reagan1984
70,935votes
35.2% of the vote · R+21.8 · a third-party candidate carried the Place · modeled estimate
Runner-up · Richard Nixon, 1972 · 60,845 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
Kamala Harris2024
+9.9pts D vs U.S.
Place D+8.5 · U.S. R+1.5 · modeled estimate
Runner-up · John W. Davis, 1924 · +4.7 pts
Republican
William H. Taft1912
+34.9pts R vs U.S.
Place R+15.3 · U.S. D+19.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · Charles E. Hughes, 1916 · +26.2 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 58.7%57,332 | 41.3%40,407 | 97,739 |
Covering sparsely populated farming counties in Missouri's northwest corner, this district delivered a 33.6-point Republican margin in 2024, reflecting the deep rural conservatism that defines much of the state's non-metropolitan landscape.
Across the recorded series it reached a Democratic high of 8.5 points in 2024 and a Republican high of 39.1 points in 1884. Between 2020 and 2024 the district moved 1.0 points toward the Democratic candidate; the 2024 margin was 8.5 points.
A population of 184,853, a 86% non-Hispanic-white share, and a median household income of $84,791 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 24 and State Senate District 23.
The state-senate 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 1st State Senate District. Akashic. https://akashic.app/sld-upper/29001/. Accessed May 20, 2026. License: CC BY 4.0.