state senate districtMissouri 9th State Senate District
presidential margin
2004–2024 · Democratic minus Republican
2004D+59.3
2008D+64.4
2012D+64.2
2016D+59.0
2020D+60.2
2024D+56.6
net swing · 2004→2024R+2.7D+59.3 → D+56.6
vs. U.S. · 2024D+58.1D+56.6 vs R+1.5
presidential returns
2024 turnout 49.4% of 130,348 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
49,863
13,407
1,135
64,405
130,348
49.4%
2020
53,015
12,716
1,247
66,978
127,042†
52.7%
2016
56,792
13,616
2,788
73,196
123,110†
59.5%
2012
63,838
13,373
1,360
78,571
120,132†
65.4%
2008
76,801
16,286
920
94,007
122,439†
76.8%
2004
66,911
16,941
390
84,242
124,746†
67.5%
† Citizen voting-age population estimated for prior cycles from the constituent-county ACS trend anchored to the current figure. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupMO SD 9MissouriUnited States
African American†50.8%10.0%9.9%
African1.2%0.3%0.5%
Nigerian0.5%—0.2%
Somali0.5%——
Jamaican0.5%—0.4%
German7.9%21.3%12.5%
English5.5%11.9%9.5%
Irish5.2%11.8%9.4%
American2.1%6.8%5.3%
Italian1.6%3.2%4.8%
Scottish0.9%1.8%1.3%
French0.9%2.2%1.6%
Polish0.7%1.3%2.2%
Mexican6.6%3.2%11.3%
Puerto Rican0.5%0.4%1.8%
Honduran0.5%—0.3%
Salvadoran0.5%—0.7%
Guatemalan0.3%0.2%0.5%
Cuban0.3%—0.7%
Spanish0.3%——
Colombian0.2%—0.4%
Asian Indian0.2%0.6%1.4%
Chinese0.2%0.4%1.3%
Filipino0.2%0.2%0.9%
Vietnamese0.2%0.2%0.6%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
MO SD 9
Missouri
United States
Median age
36.2
39.2
39.1
Age 18–24
8.4%
9.2%
9.2%
Age 65 and older
15.8%
17.9%
17.2%
Household economy
Measure
MO SD 9
Missouri
United States
Median household income
$51,752
$70,702
$84,427
Poverty rate
19.7%
12.6%
12.5%
Bachelor's degree or higher (25+)
34.0%
32.4%
35.6%
Languages at home
Measure
MO SD 9
Missouri
United States
Speaks a non-English language at home
10.5%
6.7%
22.3%
Spanish
7.1%
2.9%
13.6%
Religious landscape
Measure
MO SD 9
Missouri
United States
Catholic
—
12.5%
18.6%
Evangelical Protestant
—
24.1%
16.5%
Unclaimed / not counted
—
51.7%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Missouri 9th State Senate District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+59.3%
2008
+64.4%
2012
+64.2%
2016
+59.0%
2020
+60.2%
2024
+56.6%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
77.4%Harris49,863
20.8%Trump13,407
1.8%
D+56.6
R+3.6
D+58.1
64,405
D
79.2%Biden53,015
19.0%Trump12,716
1.9%
D+60.2
D+1.2
D+55.7
66,978
D
77.6%Clinton56,792
18.6%Trump13,616
3.8%
D+59.0
R+5.2
D+56.9
73,196
D
81.2%Obama63,838
17.0%Romney13,373
1.7%
D+64.2
R+0.1
D+60.4
78,571
D
81.7%Obama76,801
17.3%McCain16,286
1.0%
D+64.4
D+5.1
D+57.1
94,007
D
79.4%Kerry66,911
20.1%Bush16,941
0.5%
D+59.3
—
D+61.8
84,242
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 64.4 points in 2008. 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 29% 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 40 and State Senate District 45.
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 →
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 6 presidential elections in Missouri 9th State Senate District from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
