Religious adherence is published only at the county level (U.S. Religion Census). See Jackson County.
American Community Survey 2024 5-year (income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024.
Missouri 9th State Senate District
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Missouri 9th State Senate DistrictHarrisD+56.6
20082024
How it voted
Share of the 2024 vote
Kamala Harris ✓Democratic
77.4%
49,863
Donald TrumpRepublican
20.8%
13,407
Chase OliverLibertarian
1.8%
1,135
D+60R+60
District boundary, filled by its own 2024 D-vs-R margin — precinct detail where available, over the 1 county it's drawn from (shown faint).
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.
County-level results (1 county) — table
2024 presidential result by county for Missouri 9th State Senate District — winner and D-vs-R margin.
County
Winner
Margin
Jackson County, MO
Democratic
D+19.2
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5 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
Year
Won
Democratic
Republican
Other
Margin
Total
D
77.4%Harris49,863
20.8%Trump13,407
1.8%Oliver1,135
+56.6%
64,405
D
79.2%Biden53,015
19.0%Trump12,716
1.9%Jorgensen1,247
+60.2%
66,978
D
77.6%Clinton56,792
18.6%Trump13,616
3.8%Johnson2,788
+59.0%
73,196
D
82.7%Obama63,838
17.3%Romney13,373
0.0%
+65.4%
77,211
D
81.7%Obama76,801
17.3%McCain16,286
1.0%Nader920
+64.4%
94,007
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presidential history
Presidential margin, 2008–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2008
+64.4%
2012
+65.4%
2016
+59.0%
2020
+60.2%
2024
+56.6%
DemocraticRepublican
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current representation
Current officeholders
DBarbara WashingtonState Senate · 9
State legislative officeholder from OpenStates nightly current-legislator data.
District 9 recorded an R+63.5 presidential margin in 2024, placing it among the most heavily one-sided state senate districts in Missouri. Its rural character and low population density reinforce consistently wide margins at the top of the ticket.
Across the recorded series it reached a Democratic high of 65.4 points in 2012. Between 2020 and 2024 the district moved 3.6 points toward the Republican candidate; the 2024 margin was 56.6 points.
A population of 180,309, a 31% non-Hispanic-white share, and a median household income of $51,752 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 45 and State Senate District 40.
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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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Missouri 9th State Senate District. Akashic. https://akashic.app/sld-upper/29009/. Accessed May 20, 2026. License: CC BY 4.0.
How did Missouri 9th State Senate District vote in 2024?
In 2024, Missouri 9th State Senate District voted Democratic by 56.6 points (D+56.6), carried by the Democratic candidate. Out of 64,405 votes cast, 49,863 went Democratic and 13,407 went Republican.
How many people live in Missouri 9th State Senate District?
Missouri 9th State Senate District has a population of 180,309 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Missouri 9th State Senate District?
Median household income in Missouri 9th State Senate District is $51,752 — below the national median of $80,734. The Missouri state median is $70,702.
What is the political history of Missouri 9th State Senate District?
Akashic tracks 5 presidential elections in Missouri 9th State Senate District from 2008 to 2024. Of those, 5 went Democratic and 0 went Republican.
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