- Lead
- 4,425
- Total
- 92,908
- vs nation
- D+6.2
Illinois 36th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 7,493
- Total
- 98,082
- vs nation
- D+3.2
- Lead
- 5,716
- Total
- 95,828
- vs nation
- D+3.9
- Lead
- 21,879
- Total
- 98,020
- vs nation
- D+18.5
- Lead
- 25,942
- Total
- 102,250
- vs nation
- D+18.1
- Lead
- 15,846
- Total
- 105,119
- vs nation
- D+17.5
- Lead
- 18,769
- Total
- 96,342
- vs nation
- D+19.0
- Lead
- 22,878
- Total
- 92,386
- vs nation
- D+16.2
Key facts
- 2024 presidential margin
- D+4.8MIT Election Lab
- Population
- 217,3152024 5-year
- Population density
- 196 / sq mi2024 5-year · TIGER/Line
- Land area
- 1,110 sq miTIGER/Line
- Median household income
- $63,1332024 5-year
- White (non-Hispanic)
- 70.6%2024 5-year
- Black
- 10.2%2024 5-year
- Hispanic / Latino
- 11.8%2024 5-year
- Peak Democratic margin
- D+25.4 in 2008MIT Election Lab
- Peak Republican margin
- R+46.5 in 1920MIT Election Lab
- Most similar
- State Senate District 32, MI · twin score 78.0
presidential history
Party record book
Illinois 36th State Senate 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
61.8%
63,177 votes · D+25.4 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 61.2%
Republican
Warren G. Harding1920
68.6%
40,114 votes · R+46.5 · modeled estimate
Runner-up · Herbert Hoover, 1928 · 65.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
63,177votes
61.8% of the vote · D+25.4 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · 62,926 votes
Republican
Richard Nixon1972
59,135votes
55.8% of the vote · R+11.9 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1952 · 57,263 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
+24.3pts D vs U.S.
Place D+16.6 · U.S. R+7.7 · modeled estimate
Runner-up · Walter Mondale, 1984 · +20.6 pts
Republican
Warren G. Harding1920
+20.3pts R vs U.S.
Place R+46.5 · U.S. R+26.2 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · +17.7 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 | 49.1%46,910 | 50.9%48,535 | 95,445 |
| 2020 | D | 51.6%52,652 | 48.4%49,309 | 101,961 |
Illinois 36th State Senate District sits in the Upper Midwest. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 25.4 points in 2008 and a Republican high of 46.5 points in 1920. Between 2020 and 2024 the district moved 2.9 points toward the Republican candidate; the 2024 margin was 4.8 points.
A population of 217,315, a 71% non-Hispanic-white share, and a median household income of $63,133 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 32 and State Senate District 11.
The state-senate 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 36th State Senate District. Akashic. https://akashic.app/sld-upper/17036/. Accessed May 20, 2026. License: CC BY 4.0.