- Lead
- 2,607
- Total
- 32,639
- vs nation
- D+9.5
Illinois 77th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 8,172
- Total
- 35,569
- vs nation
- D+18.5
- Lead
- 9,607
- Total
- 32,341
- vs nation
- D+27.6
- Lead
- 6,559
- Total
- 30,453
- vs nation
- D+17.7
- Lead
- 8,806
- Total
- 31,673
- vs nation
- D+20.5
- Lead
- 3,445
- Total
- 31,391
- vs nation
- D+13.4
- Lead
- 2,796
- Total
- 28,193
- vs nation
- D+9.4
- Lead
- 3,098
- Total
- 25,827
- vs nation
- D+3.5
Key facts
- 2024 presidential margin
- D+8.0MIT Election Lab
- Population
- 108,7042024 5-year
- Population density
- 3,197 / sq mi2024 5-year · TIGER/Line
- Land area
- 34 sq miTIGER/Line
- Median household income
- $76,5052024 5-year
- White (non-Hispanic)
- 34.3%2024 5-year
- Black
- 3.3%2024 5-year
- Hispanic / Latino
- 57.9%2024 5-year
- Peak Democratic margin
- D+29.7 in 2016MIT Election Lab
- Peak Republican margin
- R+67.2 in 1920MIT Election Lab
- Most similar
- State House District 22, IL · twin score 98.5
presidential history
Party record book
Illinois 77th 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
Barack Obama2008
63.7%
20,184 votes · D+27.8 · modeled estimate
Runner-up · Hillary Clinton, 2016 · 62.2%
Republican
Warren G. Harding1920
82.6%
10,088 votes · R+67.2 · modeled estimate
Runner-up · James A. Garfield, 1880 · 76.7%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
21,569votes
60.6% of the vote · D+23.0 · modeled estimate
Runner-up · Barack Obama, 2008 · 20,184 votes
Republican
Richard Nixon1972
22,646votes
66.9% of the vote · R+34.0 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 22,054 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
Hillary Clinton2016
+27.6pts D vs U.S.
Place D+29.7 · U.S. D+2.1 · modeled estimate
Runner-up · Barack Obama, 2008 · +20.5 pts
Republican
Warren G. Harding1920
+41.0pts R vs U.S.
Place R+67.2 · U.S. R+26.2 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · +36.0 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
The 2024 presidential margin was D+8.0, one of the narrower results among Illinois's state house districts, compared with D+27.8 in 2008. No racial group formed a majority of its residents in the 2024 ACS 5-year, with White residents at 47.9%.
Across the recorded series it reached a Democratic high of 29.7 points in 2016 and a Republican high of 67.2 points in 1920. Between 2020 and 2024 the district moved 15.0 points toward the Republican candidate; the 2024 margin was 8.0 points.
A population of 108,704, a 34% non-Hispanic-white share, and a median household income of $76,505 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 22 and State House District 2.
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 77th State House District. Akashic. https://akashic.app/sld-lower/17077/. Accessed May 20, 2026. License: CC BY 4.0.