- Lead
- 45,565
- Total
- 73,388
- vs nation
- D+63.6
Missouri 13th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 52,636
- Total
- 84,291
- vs nation
- D+58.0
- Lead
- 48,100
- Total
- 86,478
- vs nation
- D+53.5
- Lead
- 48,626
- Total
- 87,836
- vs nation
- D+51.5
- Lead
- 57,130
- Total
- 95,669
- vs nation
- D+52.4
- Lead
- 46,539
- Total
- 88,643
- vs nation
- D+55.0
- Lead
- 37,981
- Total
- 78,334
- vs nation
- D+48.0
- Lead
- 34,623
- Total
- 73,596
- vs nation
- D+38.5
Key facts
- 2024 presidential margin
- D+62.1MIT Election Lab
- Population
- 185,4162024 5-year
- Population density
- 2,350 / sq mi2024 5-year · TIGER/Line
- Land area
- 78.9 sq miTIGER/Line
- Median household income
- $60,2992024 5-year
- White (non-Hispanic)
- 24.4%2024 5-year
- Black
- 68.2%2024 5-year
- Hispanic / Latino
- 2.1%2024 5-year
- Peak Democratic margin
- D+62.4 in 2020MIT Election Lab
- Most similar
- State Senate District 10, GA · twin score 97.3
presidential history
Party record book
Missouri 13th 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
Joe Biden2020
80.5%
67,858 votes · D+62.4 · modeled estimate
Runner-up · Kamala Harris, 2024 · 80.3%
Republican
George H. W. Bush1988
31.2%
22,520 votes · D+37.3 · modeled estimate
Runner-up · James G. Blaine, 1884 · 27.9%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
76,061votes
79.5% of the vote · D+59.7 · modeled estimate
Runner-up · Joe Biden, 2020 · 67,858 votes
Republican
Ronald Reagan1984
26,333votes
20.9% of the vote · D+10.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · Richard Nixon, 1972 · 22,593 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
+63.6pts D vs U.S.
Place D+62.1 · U.S. R+1.5 · modeled estimate
Runner-up · Joe Biden, 2020 · +58.0 pts
Republican
William H. Taft1912
−3.4pts R vs U.S.
Place D+23.0 · U.S. D+19.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · Alf Landon, 1936 · −8.6 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Missouri 13th State Senate District sits in the Border South. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 62.4 points in 2020. The 2024 margin was 62.1 points.
A population of 185,416, a 24% non-Hispanic-white share, and a median household income of $60,299 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 10 and State Senate District 14.
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 13th State Senate District. Akashic. https://akashic.app/sld-upper/29013/. Accessed May 20, 2026. License: CC BY 4.0.