- Lead
- 210
- Total
- 22,254
- vs nation
- D+2.4
Missouri 30th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 432
- Total
- 22,112
- vs nation
- R+6.4
- Lead
- 2,273
- Total
- 19,230
- vs nation
- R+13.9
- Lead
- 2,173
- Total
- 19,590
- vs nation
- R+14.9
- Lead
- 1,094
- Total
- 20,883
- vs nation
- R+12.5
- Lead
- 2,826
- Total
- 19,988
- vs nation
- R+11.7
- Lead
- 1,646
- Total
- 16,851
- vs nation
- R+10.3
- Lead
- 943
- Total
- 15,452
- vs nation
- R+14.6
Key facts
- 2024 presidential margin
- D+0.9MIT Election Lab
- Population
- 37,4862024 5-year
- Population density
- 1,777 / sq mi2024 5-year · TIGER/Line
- Land area
- 21.1 sq miTIGER/Line
- Median household income
- $122,1082024 5-year
- White (non-Hispanic)
- 78.8%2024 5-year
- Black
- 7.5%2024 5-year
- Hispanic / Latino
- 5.1%2024 5-year
- Peak Democratic margin
- D+26.6 in 1912MIT Election Lab
- Peak Republican margin
- R+44.9 in 1972MIT Election Lab
- Most similar
- State House District 10, AR · twin score 93.0
presidential history
Party record book
Missouri 30th State House 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
Franklin D. Roosevelt1936
58.9%
9,955 votes · D+18.3 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 52.2%
Republican
Richard Nixon1972
72.5%
11,297 votes · R+44.9 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 71.0%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
11,194votes
50.3% of the vote · D+0.9 · modeled estimate
Runner-up · Joe Biden, 2020 · 10,602 votes
Republican
Dwight D. Eisenhower1952
11,590votes
64.2% of the vote · R+28.6 · modeled estimate
Runner-up · Ronald Reagan, 1984 · 11,516 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
Woodrow Wilson1912
+7.0pts D vs U.S.
Place D+26.6 · U.S. D+19.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · Kamala Harris, 2024 · +2.4 pts
Republican
Thomas E. Dewey1944
+29.6pts R vs U.S.
Place R+22.2 · U.S. D+7.5 · modeled estimate
Runner-up · Wendell Willkie, 1940 · +26.1 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
Missouri 30th State House District sits in the Border South. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 26.6 points in 1912 and a Republican high of 44.9 points in 1972. Between 2020 and 2024 the district moved 2.9 points toward the Democratic candidate; the 2024 margin was 0.9 points.
A population of 37,486, a 79% non-Hispanic-white share, and a median household income of $122,108 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 10 and State House District 48.
The state-house 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 30th State House District. Akashic. https://akashic.app/sld-lower/29030/. Accessed May 20, 2026. License: CC BY 4.0.