- Lead
- 21,356
- Total
- 56,976
- vs nation
- R+36.0
Illinois 87th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 21,221
- Total
- 58,601
- vs nation
- R+40.7
- Lead
- 20,619
- Total
- 54,941
- vs nation
- R+39.6
- Lead
- 15,690
- Total
- 52,183
- vs nation
- R+33.9
- Lead
- 9,798
- Total
- 54,374
- vs nation
- R+25.3
- Lead
- 16,950
- Total
- 54,723
- vs nation
- R+28.5
- Lead
- 12,320
- Total
- 50,442
- vs nation
- R+24.9
- Lead
- 5,954
- Total
- 46,760
- vs nation
- R+21.3
Key facts
- 2024 presidential margin
- R+37.5MIT Election Lab
- Population
- 108,6502024 5-year
- Population density
- 63 / sq mi2024 5-year · TIGER/Line
- Land area
- 1,717 sq miTIGER/Line
- Median household income
- $78,8962024 5-year
- White (non-Hispanic)
- 90.9%2024 5-year
- Black
- 2.0%2024 5-year
- Hispanic / Latino
- 2.6%2024 5-year
- Peak Democratic margin
- D+19.9 in 1912MIT Election Lab
- Peak Republican margin
- R+42.3 in 1972MIT Election Lab
- Most similar
- State House District 101, IL · twin score 95.6
presidential history
Party record book
Illinois 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
Franklin D. Roosevelt1932
55.4%
19,093 votes · D+11.8 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 54.6%
Republican
Richard Nixon1972
71.1%
34,280 votes · R+42.3 · modeled estimate
Runner-up · Donald Trump, 2024 · 67.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Lyndon B. Johnson1964
24,530votes
54.1% of the vote · D+8.2 · modeled estimate
Runner-up · Barack Obama, 2008 · 21,788 votes
Republican
Donald Trump2020
39,156votes
66.8% of the vote · R+36.2 · modeled estimate
Runner-up · Donald Trump, 2024 · 38,624 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
Alton B. Parker1904
+1.3pts D vs U.S.
Place R+18.3 · U.S. R+19.7 · modeled estimate
Runner-up · Woodrow Wilson, 1912 · +0.4 pts
Republican
Donald Trump2020
+40.7pts R vs U.S.
Place R+36.2 · U.S. D+4.5 · modeled estimate
Runner-up · Donald Trump, 2016 · +39.6 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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | R | 5.9%2,637 | 94.1%42,062 | 44,699 |
| 2020 | R | 30.5%16,800 | 69.5%38,249 | 55,049 |
Illinois 87th State House District sits in the Upper Midwest. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 19.9 points in 1912 and a Republican high of 42.3 points in 1972. Between 2020 and 2024 the district moved 1.3 points toward the Republican candidate; the 2024 margin was 37.5 points.
A population of 108,650, a 91% non-Hispanic-white share, and a median household income of $78,896 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 101 and State House District 107.
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 →
Illinois 87th State House District. Akashic. https://akashic.app/sld-lower/17087/. Accessed May 20, 2026. License: CC BY 4.0.