- Lead
- 3,159
- Total
- 15,100
- vs nation
- R+19.4
Iowa 87th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 2,742
- Total
- 16,215
- vs nation
- R+21.4
- Lead
- 2,254
- Total
- 15,286
- vs nation
- R+16.8
- Lead
- 1,233
- Total
- 15,625
- vs nation
- D+4.0
- Lead
- 1,829
- Total
- 15,613
- vs nation
- D+4.4
- Lead
- 526
- Total
- 15,498
- vs nation
- D+5.9
- Lead
- 318
- Total
- 14,207
- vs nation
- R+2.8
- Lead
- 1,007
- Total
- 13,829
- vs nation
- R+1.2
Key facts
- 2024 presidential margin
- R+20.9MIT Election Lab
- Population
- 31,8112024 5-year
- Population density
- 41 / sq mi2024 5-year · TIGER/Line
- Land area
- 776 sq miTIGER/Line
- Median household income
- $60,6902024 5-year
- White (non-Hispanic)
- 85.5%2024 5-year
- Black
- 2.7%2024 5-year
- Hispanic / Latino
- 4.8%2024 5-year
- Peak Democratic margin
- D+24.6 in 1964MIT Election Lab
- Peak Republican margin
- R+41.7 in 1920MIT Election Lab
- Most similar
- State House District 38, IA · twin score 96.8
presidential history
Party record book
Iowa 87th 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
62.2%
8,635 votes · D+24.6 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 60.5%
Republican
Warren G. Harding1920
70.0%
10,108 votes · R+41.7 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1952 · 67.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Franklin D. Roosevelt1932
9,337votes
60.5% of the vote · D+21.0 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 8,635 votes
Republican
Dwight D. Eisenhower1952
10,990votes
67.6% of the vote · R+36.1 · modeled estimate
Runner-up · Wendell Willkie, 1940 · 10,462 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
+13.7pts D vs U.S.
Place D+5.9 · U.S. R+7.7 · modeled estimate
Runner-up · Walter Mondale, 1984 · +7.1 pts
Republican
Wendell Willkie1940
+29.4pts R vs U.S.
Place R+19.5 · U.S. D+9.9 · modeled estimate
Runner-up · Alf Landon, 1936 · +27.0 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 87 recorded an R+20.9 presidential margin in 2024, placing it among Iowa's most heavily one-sided legislative districts. Its rural character and small population base have made competitive general elections rare in recent cycles.
Across the recorded series it reached a Democratic high of 24.6 points in 1964 and a Republican high of 41.7 points in 1920. Between 2020 and 2024 the district moved 4.0 points toward the Republican candidate; the 2024 margin was 20.9 points.
A population of 31,811, a 86% non-Hispanic-white share, and a median household income of $60,690 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 38 and State House District 53.
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 87th State House District. Akashic. https://akashic.app/sld-lower/19087/. Accessed May 20, 2026. License: CC BY 4.0.