- Lead
- 2,750
- Total
- 16,743
- vs nation
- D+17.9
Iowa 74th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 3,422
- Total
- 17,540
- vs nation
- D+15.1
- Lead
- 2,020
- Total
- 16,238
- vs nation
- D+10.3
- Lead
- 3,481
- Total
- 16,245
- vs nation
- D+17.6
- Lead
- 3,966
- Total
- 15,569
- vs nation
- D+18.2
- Lead
- 2,099
- Total
- 15,090
- vs nation
- D+16.4
- Lead
- 1,645
- Total
- 12,560
- vs nation
- D+12.6
- Lead
- 2,389
- Total
- 11,401
- vs nation
- D+12.4
Key facts
- 2024 presidential margin
- D+16.4MIT Election Lab
- Population
- 31,7132024 5-year
- Population density
- 2,857 / sq mi2024 5-year · TIGER/Line
- Land area
- 11.1 sq miTIGER/Line
- Median household income
- $72,0632024 5-year
- White (non-Hispanic)
- 80.5%2024 5-year
- Black
- 5.3%2024 5-year
- Hispanic / Latino
- 3.7%2024 5-year
- Peak Democratic margin
- D+32.9 in 1964MIT Election Lab
- Peak Republican margin
- R+43.8 in 1924MIT Election Lab
- Most similar
- State House District 80, IA · twin score 91.9
presidential history
Party record book
Iowa 74th 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
66.4%
5,662 votes · D+32.9 · modeled estimate
Runner-up · Barack Obama, 2008 · 61.9%
Republican
Warren G. Harding1920
69.8%
2,628 votes · R+43.0 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 66.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
10,250votes
58.4% of the vote · D+19.5 · modeled estimate
Runner-up · Barack Obama, 2012 · 9,673 votes
Republican
Donald Trump2024
6,843votes
40.9% of the vote · D+16.4 · modeled estimate
Runner-up · Donald Trump, 2020 · 6,828 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
+24.5pts D vs U.S.
Place D+16.8 · U.S. R+7.7 · modeled estimate
Runner-up · George McGovern, 1972 · +19.6 pts
Republican
Alf Landon1936
+19.1pts R vs U.S.
Place D+5.1 · U.S. D+24.3 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · +18.6 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.
District 74 backed the 2024 Democratic presidential candidate by 16.4 points, a margin that stands out sharply in a state that has trended Republican at the statewide level over the past decade.
Across the recorded series it reached a Democratic high of 32.9 points in 1964 and a Republican high of 43.8 points in 1924. Between 2020 and 2024 the district moved 3.1 points toward the Republican candidate; the 2024 margin was 16.4 points.
A population of 31,713, a 81% non-Hispanic-white share, and a median household income of $72,063 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 80 and State House District 78.
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 74th State House District. Akashic. https://akashic.app/sld-lower/19074/. Accessed May 20, 2026. License: CC BY 4.0.