- Lead
- 41,586
- Total
- 58,209
- vs nation
- D+72.9
Illinois 11th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 44,683
- Total
- 61,947
- vs nation
- D+67.7
- Lead
- 37,398
- Total
- 54,698
- vs nation
- D+66.3
- Lead
- 33,380
- Total
- 49,188
- vs nation
- D+64.0
- Lead
- 37,469
- Total
- 52,881
- vs nation
- D+63.6
- Lead
- 30,541
- Total
- 48,779
- vs nation
- D+65.1
- Lead
- 27,074
- Total
- 44,574
- vs nation
- D+60.2
- Lead
- 24,834
- Total
- 42,107
- vs nation
- D+50.5
Key facts
- 2024 presidential margin
- D+71.4MIT Election Lab
- Population
- 108,7932024 5-year
- Population density
- 27,198 / sq mi2024 5-year · TIGER/Line
- Land area
- 4 sq miTIGER/Line
- Median household income
- $124,6392024 5-year
- White (non-Hispanic)
- 75.2%2024 5-year
- Black
- 3.4%2024 5-year
- Hispanic / Latino
- 9.8%2024 5-year
- Peak Democratic margin
- D+72.1 in 2020MIT Election Lab
- Peak Republican margin
- R+23.3 in 1920MIT Election Lab
- Most similar
- State House District 12, IL · twin score 98.7
presidential history
Party record book
Illinois 11th 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
Kamala Harris2024
84.8%
49,384 votes · D+71.4 · modeled estimate
Runner-up · Joe Biden, 2020 · 84.8%
Republican
Warren G. Harding1920
54.9%
9,372 votes · R+23.3 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 44.0%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
52,543votes
84.8% of the vote · D+72.1 · modeled estimate
Runner-up · Kamala Harris, 2024 · 49,384 votes
Republican
Dwight D. Eisenhower1956
18,917votes
41.5% of the vote · D+17.1 · modeled estimate
Runner-up · Richard Nixon, 1972 · 18,009 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
+72.9pts D vs U.S.
Place D+71.4 · U.S. R+1.5 · modeled estimate
Runner-up · Joe Biden, 2020 · +67.7 pts
Republican
William H. Taft1912
+0.7pts R vs U.S.
Place D+18.8 · U.S. D+19.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · Warren G. Harding, 1920 · −2.9 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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 73.1%30,515 | 26.9%11,210 | 41,725 |
District 11 backed the 2024 Republican presidential nominee by 24.3 points, placing it among the state's most reliably conservative legislative districts. Its population of roughly 109,000 reflects a typical downstate Illinois House seat.
Across the recorded series it reached a Democratic high of 72.1 points in 2020 and a Republican high of 23.3 points in 1920. Between 2020 and 2024 the district moved 0.7 points toward the Republican candidate; the 2024 margin was 71.4 points.
A population of 108,793, a 75% non-Hispanic-white share, and a median household income of $124,639 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 12 and State House District 18.
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 11th State House District. Akashic. https://akashic.app/sld-lower/17011/. Accessed May 20, 2026. License: CC BY 4.0.