- Lead
- 8,778
- Total
- 17,792
- vs nation
- D+50.8
Iowa 86th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 9,315
- Total
- 17,628
- vs nation
- D+48.4
- Lead
- 6,965
- Total
- 15,297
- vs nation
- D+43.4
- Lead
- 6,617
- Total
- 15,003
- vs nation
- D+40.2
- Lead
- 7,219
- Total
- 14,489
- vs nation
- D+42.6
- Lead
- 4,924
- Total
- 12,825
- vs nation
- D+40.9
- Lead
- 3,513
- Total
- 10,274
- vs nation
- D+33.7
- Lead
- 3,578
- Total
- 9,006
- vs nation
- D+31.2
Key facts
- 2024 presidential margin
- D+49.3MIT Election Lab
- Population
- 32,0702024 5-year
- Population density
- 1,822 / sq mi2024 5-year · TIGER/Line
- Land area
- 17.6 sq miTIGER/Line
- Median household income
- $73,0742024 5-year
- White (non-Hispanic)
- 65.2%2024 5-year
- Black
- 13.4%2024 5-year
- Hispanic / Latino
- 6.0%2024 5-year
- Peak Democratic margin
- D+52.8 in 2020MIT Election Lab
- Peak Republican margin
- R+6.1 in 1952MIT Election Lab
- Most similar
- State House District 10, KS · twin score 94.0
presidential history
Party record book
Iowa 86th 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
75.4%
13,293 votes · D+52.8 · modeled estimate
Runner-up · Barack Obama, 2008 · 74.0%
Republican
Dwight D. Eisenhower1952
52.9%
1,918 votes · R+6.1 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 51.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
13,293votes
75.4% of the vote · D+52.8 · modeled estimate
Runner-up · Kamala Harris, 2024 · 13,107 votes
Republican
Donald Trump2024
4,329votes
24.3% of the vote · D+49.3 · modeled estimate
Runner-up · Mitt Romney, 2012 · 4,033 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
+50.8pts D vs U.S.
Place D+49.3 · U.S. R+1.5 · modeled estimate
Runner-up · George McGovern, 1972 · +50.0 pts
Republican
Dwight D. Eisenhower1952
−4.6pts R vs U.S.
Place R+6.1 · U.S. R+10.8 · modeled estimate
Runner-up · Alf Landon, 1936 · −6.6 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 86 backed the 2024 Democratic presidential nominee by nearly 50 points, reflecting a heavily urban or university-anchored electorate that stands well outside Iowa's broader rightward trend in recent cycles.
Across the recorded series it reached a Democratic high of 52.8 points in 2020 and a Republican high of 6.1 points in 1952. Between 2020 and 2024 the district moved 3.5 points toward the Republican candidate; the 2024 margin was 49.3 points.
A population of 32,070, a 65% non-Hispanic-white share, and a median household income of $73,074 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 10 and State House District 90.
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 86th State House District. Akashic. https://akashic.app/sld-lower/19086/. Accessed May 20, 2026. License: CC BY 4.0.