- Lead
- 7,358
- Total
- 19,382
- vs nation
- D+39.4
Missouri 99th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 7,747
- Total
- 20,358
- vs nation
- D+33.6
- Lead
- 6,066
- Total
- 19,373
- vs nation
- D+29.2
- Lead
- 5,836
- Total
- 19,745
- vs nation
- D+25.7
- Lead
- 7,457
- Total
- 21,176
- vs nation
- D+27.9
- Lead
- 5,115
- Total
- 20,177
- vs nation
- D+27.8
- Lead
- 3,846
- Total
- 17,972
- vs nation
- D+20.9
- Lead
- 3,611
- Total
- 16,929
- vs nation
- D+12.8
Key facts
- 2024 presidential margin
- D+38.0MIT Election Lab
- Population
- 36,7412024 5-year
- Population density
- 2,551 / sq mi2024 5-year · TIGER/Line
- Land area
- 14.4 sq miTIGER/Line
- Median household income
- $138,1752024 5-year
- White (non-Hispanic)
- 69.7%2024 5-year
- Black
- 10.6%2024 5-year
- Hispanic / Latino
- 3.4%2024 5-year
- Peak Democratic margin
- D+38.1 in 2020MIT Election Lab
- Peak Republican margin
- R+13.3 in 1904MIT Election Lab
- Most similar
- State House District 71, MO · twin score 96.5
presidential history
Party record book
Missouri 99th 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
Joe Biden2020
68.3%
13,914 votes · D+38.1 · modeled estimate
Runner-up · Kamala Harris, 2024 · 68.0%
Republican
George H. W. Bush1988
46.4%
8,035 votes · D+7.0 · modeled estimate
Runner-up · James G. Blaine, 1884 · 44.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
14,226votes
67.2% of the vote · D+35.2 · modeled estimate
Runner-up · Joe Biden, 2020 · 13,914 votes
Republican
Ronald Reagan1984
9,405votes
29.4% of the vote · R+6.3 · a third-party candidate carried the Place · modeled estimate
Runner-up · Richard Nixon, 1972 · 8,069 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
+39.4pts D vs U.S.
Place D+38.0 · U.S. R+1.5 · modeled estimate
Runner-up · Joe Biden, 2020 · +33.6 pts
Republican
William H. Taft1912
+11.6pts R vs U.S.
Place D+7.9 · U.S. D+19.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · Wendell Willkie, 1940 · +7.7 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%11,395 | 41.3%8,031 | 19,426 |
Missouri 99th State House District sits in the Border South. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 38.1 points in 2020 and a Republican high of 13.3 points in 1904. The 2024 margin was 38.0 points.
A population of 36,741, a 70% non-Hispanic-white share, and a median household income of $138,175 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 71 and State House District 91.
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 99th State House District. Akashic. https://akashic.app/sld-lower/29099/. Accessed May 20, 2026. License: CC BY 4.0.