Missouri 15th 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
48.0%
53,054 votes · R+1.9 · modeled estimate
Runner-up · Joe Biden, 2020 · 47.5%
Republican
James G. Blaine1884
74.8%
1,179 votes · R+49.9 · modeled estimate
Runner-up · James A. Garfield, 1880 · 71.7%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
54,400votes
47.5% of the vote · R+3.4 · modeled estimate
Runner-up · Kamala Harris, 2024 · 53,054 votes
Republican
Ronald Reagan1984
88,014votes
41.4% of the vote · R+29.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · Richard Nixon, 1972 · 75,564 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
−0.4pts D vs U.S.
Place R+1.9 · U.S. R+1.5 · modeled estimate
Runner-up · John W. Davis, 1924 · −3.4 pts
Republican
William H. Taft1912
+42.6pts R vs U.S.
Place R+23.0 · U.S. D+19.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · Alf Landon, 1936 · +32.9 pts
current representation
Current officeholders
RDavid GregoryState Senate · 15
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 1 House
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.
Source · Akashic county-allocated estimate from certified county returns, House; not precinct-counted.
Year
Vote lead
Democratic
Republican
Total
2024
D
58.7%57,790
41.3%40,730
98,520
Missouri 15th State Senate District sits in the Border South. In 2024 it voted Republican.
Across the recorded series it reached a Republican high of 49.9 points in 1884. Between 2020 and 2024 the district moved 1.5 points toward the Democratic candidate; the 2024 margin was 1.9 points.
A population of 186,330, a 80% non-Hispanic-white share, and a median household income of $131,435 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 11.
Akashic
Political twins — state-senate districts
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.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Missouri 15th State Senate District. Akashic. https://akashic.app/sld-upper/29015/. Accessed May 20, 2026. License: CC BY 4.0.
How did Missouri 15th State Senate District vote in 2024?
In 2024, Missouri 15th State Senate District voted Republican by 1.9 points (R+1.9), carried by the Republican candidate. Out of 110,500 votes cast, 53,054 went Democratic and 55,131 went Republican.
How many people live in Missouri 15th State Senate District?
Missouri 15th State Senate District has a population of 186,330 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Missouri 15th State Senate District?
Median household income in Missouri 15th State Senate District is $131,435 — above the national median of $80,734. The Missouri state median is $70,702.
What is the political history of Missouri 15th State Senate District?
Akashic tracks 38 presidential elections in Missouri 15th State Senate District from 1876 to 2024. Of those, 0 went Democratic and 15 went Republican.