- Lead
- 591
- Total
- 22,331
- vs nation
- D+4.1
Missouri 100th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 202
- Total
- 23,009
- vs nation
- R+3.6
- Lead
- 2,821
- Total
- 21,808
- vs nation
- R+15.0
- Lead
- 3,790
- Total
- 22,271
- vs nation
- R+20.9
- Lead
- 2,511
- Total
- 23,136
- vs nation
- R+18.1
- Lead
- 5,008
- Total
- 23,157
- vs nation
- R+19.2
- Lead
- 5,212
- Total
- 20,970
- vs nation
- R+25.4
- Lead
- 4,310
- Total
- 19,990
- vs nation
- R+30.1
Key facts
- 2024 presidential margin
- D+2.6MIT Election Lab
- Population
- 37,9552024 5-year
- Population density
- 3,419 / sq mi2024 5-year · TIGER/Line
- Land area
- 11.1 sq miTIGER/Line
- Median household income
- $122,9032024 5-year
- White (non-Hispanic)
- 79.8%2024 5-year
- Black
- 2.9%2024 5-year
- Hispanic / Latino
- 3.3%2024 5-year
- Peak Democratic margin
- D+2.6 in 2024MIT Election Lab
- Peak Republican margin
- R+50.8 in 1884MIT Election Lab
- Most similar
- State House District 101, MO · twin score 95.7
presidential history
Party record book
Missouri 100th 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
Kamala Harris2024
50.2%
11,204 votes · D+2.6 · modeled estimate
Runner-up · Joe Biden, 2020 · 49.6%
Republican
James G. Blaine1884
75.1%
247 votes · R+50.8 · modeled estimate
Runner-up · James A. Garfield, 1880 · 71.4%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
11,404votes
49.6% of the vote · D+0.9 · modeled estimate
Runner-up · Kamala Harris, 2024 · 11,204 votes
Republican
Ronald Reagan1984
17,588votes
38.3% of the vote · R+26.8 · a third-party candidate carried the Place · modeled estimate
Runner-up · Richard Nixon, 1972 · 15,102 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
+4.1pts D vs U.S.
Place D+2.6 · U.S. R+1.5 · modeled estimate
Runner-up · John W. Davis, 1924 · −0.7 pts
Republican
William H. Taft1912
+42.2pts R vs U.S.
Place R+22.6 · U.S. D+19.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · Alf Landon, 1936 · +31.3 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 58.7%11,772 | 41.3%8,297 | 20,069 |
Missouri House District 100 stands out as one of the few state legislative seats still posting a Democratic presidential margin in a state that went heavily Republican in 2024, making it a closely watched swing target at the local level.
Across the recorded series it reached a Democratic high of 2.6 points in 2024 and a Republican high of 50.8 points in 1884. Between 2020 and 2024 the district moved 1.8 points toward the Democratic candidate; the 2024 margin was 2.6 points.
A population of 37,955, a 80% non-Hispanic-white share, and a median household income of $122,903 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 101 and State House District 98.
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 100th State House District. Akashic. https://akashic.app/sld-lower/29100/. Accessed May 20, 2026. License: CC BY 4.0.