- Lead
- 11,224
- Total
- 117,753
- vs nation
- R+8.1
Illinois 35th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 8,183
- Total
- 117,393
- vs nation
- R+11.4
- Lead
- 11,940
- Total
- 99,160
- vs nation
- R+14.1
- Lead
- 13,179
- Total
- 93,069
- vs nation
- R+18.0
- Lead
- 2,299
- Total
- 96,835
- vs nation
- R+9.6
- Lead
- 21,987
- Total
- 89,321
- vs nation
- R+22.2
- Lead
- 18,478
- Total
- 73,691
- vs nation
- R+25.6
- Lead
- 10,171
- Total
- 59,523
- vs nation
- R+25.6
Key facts
- 2024 presidential margin
- R+9.5MIT Election Lab
- Population
- 217,1272024 5-year
- Population density
- 230 / sq mi2024 5-year · TIGER/Line
- Land area
- 944 sq miTIGER/Line
- Median household income
- $109,7292024 5-year
- White (non-Hispanic)
- 77.1%2024 5-year
- Black
- 1.9%2024 5-year
- Hispanic / Latino
- 13.6%2024 5-year
- Peak Republican margin
- R+78.0 in 1920MIT Election Lab
- Most similar
- State Senate District 32, IL · twin score 95.2
presidential history
Party record book
Illinois 35th 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
48.0%
46,465 votes · R+2.4 · modeled estimate
Runner-up · Joe Biden, 2020 · 45.2%
Republican
Warren G. Harding1920
87.7%
15,205 votes · R+78.0 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · 82.1%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
53,006votes
45.2% of the vote · R+7.0 · modeled estimate
Runner-up · Kamala Harris, 2024 · 52,218 votes
Republican
Donald Trump2024
63,442votes
53.9% of the vote · R+9.5 · modeled estimate
Runner-up · Donald Trump, 2020 · 61,189 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
−8.1pts D vs U.S.
Place R+9.5 · U.S. R+1.5 · modeled estimate
Runner-up · Barack Obama, 2008 · −9.6 pts
Republican
Charles E. Hughes1916
+59.4pts R vs U.S.
Place R+56.2 · U.S. D+3.1 · modeled estimate
Runner-up · Thomas E. Dewey, 1944 · +53.4 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 | 46.1%45,950 | 53.9%53,832 | 99,782 |
| 2020 | R | 49.7%51,161 | 50.3%51,694 | 102,855 |
Anchored in rural southern Illinois, this district delivered a 61.9-point Republican margin in the 2024 presidential race, making it among the most politically lopsided state senate districts in the state.
Across the recorded series it reached a Republican high of 78.0 points in 1920. Between 2020 and 2024 the district moved 2.6 points toward the Republican candidate; the 2024 margin was 9.5 points.
A population of 217,127, a 77% non-Hispanic-white share, and a median household income of $109,729 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 33.
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 35th State Senate District. Akashic. https://akashic.app/sld-upper/17035/. Accessed May 20, 2026. License: CC BY 4.0.