- Lead
- 3,915
- Total
- 113,698
- vs nation
- D+4.9
Illinois 24th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 9,403
- Total
- 120,212
- vs nation
- D+3.4
- Lead
- 5,665
- Total
- 105,964
- vs nation
- D+3.3
- Lead
- 8,010
- Total
- 100,369
- vs nation
- R+11.8
- Lead
- 1,145
- Total
- 103,300
- vs nation
- R+6.2
- Lead
- 18,941
- Total
- 102,382
- vs nation
- R+16.0
- Lead
- 19,943
- Total
- 92,729
- vs nation
- R+22.0
- Lead
- 15,232
- Total
- 83,370
- vs nation
- R+26.8
Key facts
- 2024 presidential margin
- D+3.4MIT Election Lab
- Population
- 217,1892024 5-year
- Population density
- 2,623 / sq mi2024 5-year · TIGER/Line
- Land area
- 82.8 sq miTIGER/Line
- Median household income
- $114,8302024 5-year
- White (non-Hispanic)
- 71.2%2024 5-year
- Black
- 3.0%2024 5-year
- Hispanic / Latino
- 11.7%2024 5-year
- Peak Democratic margin
- D+7.8 in 2020MIT Election Lab
- Peak Republican margin
- R+76.5 in 1920MIT Election Lab
- Most similar
- State Senate District 41, IL · twin score 96.7
presidential history
Party record book
Illinois 24th 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
Joe Biden2020
52.6%
63,193 votes · D+7.8 · modeled estimate
Runner-up · Kamala Harris, 2024 · 50.4%
Republican
Warren G. Harding1920
85.8%
11,009 votes · R+76.5 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · 81.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
63,193votes
52.6% of the vote · D+7.8 · modeled estimate
Runner-up · Kamala Harris, 2024 · 57,310 votes
Republican
Ronald Reagan1984
68,012votes
78.0% of the vote · R+56.5 · modeled estimate
Runner-up · George H. W. Bush, 1988 · 63,512 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
+4.9pts D vs U.S.
Place D+3.4 · U.S. R+1.5 · modeled estimate
Runner-up · Joe Biden, 2020 · +3.4 pts
Republican
William McKinley1896
+53.9pts R vs U.S.
Place R+60.0 · U.S. R+6.1 · modeled estimate
Runner-up · Thomas E. Dewey, 1948 · +52.6 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 | 58.1%59,422 | 41.9%42,875 | 102,297 |
| 2020 | D | 64.6%57,240 | 35.4%31,362 | 88,602 |
Illinois 24th State Senate District sits in the Upper Midwest. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 7.8 points in 2020 and a Republican high of 76.5 points in 1920. Between 2020 and 2024 the district moved 4.4 points toward the Republican candidate; the 2024 margin was 3.4 points.
A population of 217,189, a 71% non-Hispanic-white share, and a median household income of $114,830 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 41 and State Senate District 23.
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 24th State Senate District. Akashic. https://akashic.app/sld-upper/17024/. Accessed May 20, 2026. License: CC BY 4.0.