- Lead
- 4,820
- Total
- 16,373
- vs nation
- D+30.9
Iowa 50th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 6,088
- Total
- 17,119
- vs nation
- D+31.1
- Lead
- 4,442
- Total
- 16,448
- vs nation
- D+24.9
- Lead
- 4,578
- Total
- 15,281
- vs nation
- D+26.1
- Lead
- 4,946
- Total
- 15,143
- vs nation
- D+25.4
- Lead
- 3,108
- Total
- 14,221
- vs nation
- D+24.3
- Lead
- 2,232
- Total
- 11,257
- vs nation
- D+19.3
- Lead
- 3,126
- Total
- 10,558
- vs nation
- D+21.1
Key facts
- 2024 presidential margin
- D+29.4MIT Election Lab
- Population
- 31,7772024 5-year
- Population density
- 3,345 / sq mi2024 5-year · TIGER/Line
- Land area
- 9.5 sq miTIGER/Line
- Median household income
- $63,5362024 5-year
- White (non-Hispanic)
- 74.0%2024 5-year
- Black
- 4.0%2024 5-year
- Hispanic / Latino
- 5.0%2024 5-year
- Peak Democratic margin
- D+35.8 in 1964MIT Election Lab
- Peak Republican margin
- R+49.4 in 1920MIT Election Lab
- Most similar
- State House District 90, IA · twin score 90.1
presidential history
Party record book
Iowa 50th 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
Lyndon B. Johnson1964
67.6%
4,559 votes · D+35.8 · modeled estimate
Runner-up · Joe Biden, 2020 · 66.3%
Republican
Warren G. Harding1920
73.5%
2,280 votes · R+49.4 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · 69.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
11,344votes
66.3% of the vote · D+35.6 · modeled estimate
Runner-up · Kamala Harris, 2024 · 10,399 votes
Republican
Donald Trump2024
5,579votes
34.1% of the vote · D+29.4 · modeled estimate
Runner-up · George W. Bush, 2004 · 5,445 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
Michael Dukakis1988
+40.0pts D vs U.S.
Place D+32.2 · U.S. R+7.7 · modeled estimate
Runner-up · George McGovern, 1972 · +32.0 pts
Republican
Theodore Roosevelt1904
+28.7pts R vs U.S.
Place R+48.3 · U.S. R+19.7 · modeled estimate
Runner-up · Warren G. Harding, 1920 · +23.2 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.
With a 2024 presidential margin of D+29.4, this district stands as a strong outlier in a state that has shifted sharply toward Republicans at the statewide level over the past decade.
Across the recorded series it reached a Democratic high of 35.8 points in 1964 and a Republican high of 49.4 points in 1920. Between 2020 and 2024 the district moved 6.1 points toward the Republican candidate; the 2024 margin was 29.4 points.
A population of 31,777, a 74% non-Hispanic-white share, and a median household income of $63,536 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 90 and State House District 86.
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 →
Iowa 50th State House District. Akashic. https://akashic.app/sld-lower/19050/. Accessed May 20, 2026. License: CC BY 4.0.