- Lead
- 6,064
- Total
- 49,433
- vs nation
- R+10.8
Illinois 111th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 6,606
- Total
- 52,312
- vs nation
- R+17.1
- Lead
- 6,665
- Total
- 50,887
- vs nation
- R+15.2
- Lead
- 495
- Total
- 48,451
- vs nation
- R+2.8
- Lead
- 5,924
- Total
- 50,852
- vs nation
- D+4.4
- Lead
- 2,818
- Total
- 48,895
- vs nation
- D+8.2
- Lead
- 5,200
- Total
- 43,547
- vs nation
- D+11.4
- Lead
- 7,896
- Total
- 39,650
- vs nation
- D+11.4
Key facts
- 2024 presidential margin
- R+12.3MIT Election Lab
- Population
- 108,6422024 5-year
- Population density
- 872 / sq mi2024 5-year · TIGER/Line
- Land area
- 125 sq miTIGER/Line
- Median household income
- $63,4562024 5-year
- White (non-Hispanic)
- 79.4%2024 5-year
- Black
- 10.0%2024 5-year
- Hispanic / Latino
- 4.1%2024 5-year
- Peak Democratic margin
- D+39.0 in 1964MIT Election Lab
- Peak Republican margin
- R+24.6 in 1920MIT Election Lab
- Most similar
- State House District 50, OH · twin score 89.8
presidential history
Party record book
Illinois 111th 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
69.5%
26,242 votes · D+39.0 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · 65.0%
Republican
Warren G. Harding1920
55.5%
7,412 votes · R+24.6 · modeled estimate
Runner-up · Donald Trump, 2024 · 55.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
27,920votes
54.9% of the vote · D+11.6 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 26,242 votes
Republican
Donald Trump2020
28,772votes
55.0% of the vote · R+12.6 · modeled estimate
Runner-up · Donald Trump, 2024 · 27,229 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
Adlai Stevenson1952
+29.5pts D vs U.S.
Place D+18.7 · U.S. R+10.8 · modeled estimate
Runner-up · Adlai Stevenson, 1956 · +27.5 pts
Republican
Donald Trump2020
+17.1pts R vs U.S.
Place R+12.6 · U.S. D+4.5 · modeled estimate
Runner-up · Donald Trump, 2016 · +15.2 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 | 34.8%17,412 | 65.2%32,597 | 50,009 |
| 2020 | R | 41.5%23,094 | 58.5%32,494 | 55,588 |
Illinois House District 111 logged an R+5.3 margin in the 2024 presidential race, signaling continued realignment in a district that once leaned more competitive. Its 108,000-plus residents reflect broader exurban demographic trends reshaping Midwest legislative maps.
Across the recorded series it reached a Democratic high of 39.0 points in 1964 and a Republican high of 24.6 points in 1920. The 2024 margin was 12.3 points.
A population of 108,642, a 79% non-Hispanic-white share, and a median household income of $63,456 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 50 and State House District 93.
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 111th State House District. Akashic. https://akashic.app/sld-lower/17111/. Accessed May 20, 2026. License: CC BY 4.0.