- Lead
- 14,173
- Total
- 37,032
- vs nation
- D+39.7
Iowa 43rd State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 14,993
- Total
- 35,974
- vs nation
- D+37.2
- Lead
- 11,122
- Total
- 31,528
- vs nation
- D+33.2
- Lead
- 10,173
- Total
- 30,940
- vs nation
- D+29.0
- Lead
- 11,618
- Total
- 29,600
- vs nation
- D+32.0
- Lead
- 7,076
- Total
- 26,664
- vs nation
- D+29.0
- Lead
- 4,871
- Total
- 21,510
- vs nation
- D+22.1
- Lead
- 5,464
- Total
- 18,667
- vs nation
- D+20.8
Key facts
- 2024 presidential margin
- D+38.3MIT Election Lab
- Population
- 64,1852024 5-year
- Population density
- 493 / sq mi2024 5-year · TIGER/Line
- Land area
- 130 sq miTIGER/Line
- Median household income
- $93,1012024 5-year
- White (non-Hispanic)
- 73.7%2024 5-year
- Black
- 9.2%2024 5-year
- Hispanic / Latino
- 5.7%2024 5-year
- Peak Democratic margin
- D+41.7 in 2020MIT Election Lab
- Peak Republican margin
- R+19.1 in 1952MIT Election Lab
- Most similar
- State Senate District 45, IA · twin score 91.6
presidential history
Party record book
Iowa 43rd State Senate 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
69.8%
25,114 votes · D+41.7 · modeled estimate
Runner-up · Barack Obama, 2008 · 68.8%
Republican
Dwight D. Eisenhower1952
59.4%
4,754 votes · R+19.1 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 57.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Kamala Harris2024
25,234votes
68.1% of the vote · D+38.3 · modeled estimate
Runner-up · Joe Biden, 2020 · 25,114 votes
Republican
Donald Trump2024
11,061votes
29.9% of the vote · D+38.3 · modeled estimate
Runner-up · Donald Trump, 2020 · 10,121 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
+39.7pts D vs U.S.
Place D+38.3 · U.S. R+1.5 · modeled estimate
Runner-up · George McGovern, 1972 · +37.3 pts
Republican
Dwight D. Eisenhower1952
+8.3pts R vs U.S.
Place R+19.1 · U.S. R+10.8 · modeled estimate
Runner-up · Alf Landon, 1936 · +5.9 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.
Iowa 43rd State Senate District sits in the Corn Belt. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 41.7 points in 2020 and a Republican high of 19.1 points in 1952. Between 2020 and 2024 the district moved 3.4 points toward the Republican candidate; the 2024 margin was 38.3 points.
A population of 64,185, a 74% non-Hispanic-white share, and a median household income of $93,101 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 45 and State Senate District 26.
The state-senate 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 43rd State Senate District. Akashic. https://akashic.app/sld-upper/19043/. Accessed May 20, 2026. License: CC BY 4.0.