Religious adherence is published only at the county level (U.S. Religion Census). See Madison County.
American Community Survey 2024 5-year (income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024.
Illinois 56th State Senate District
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Illinois 56th State Senate DistrictTrumpR+2.0
20082024
How it voted
Share of the 2024 vote
Donald Trump ✓Republican
49.7%
50,579
Kamala HarrisDemocratic
47.7%
48,540
Robert F. Kennedy Jr.Independent
2.6%
2,609
D+60R+60
District boundary, filled by its own 2024 D-vs-R margin — precinct detail where available, over the 2 counties it's drawn from (shown faint).
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.
County-level results (2 counties) — table
2024 presidential result by county for Illinois 56th State Senate District — winner and D-vs-R margin.
County
Winner
Margin
Madison County, IL
Republican
R+13.2
St. Clair County, IL
Democratic
D+7.8
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5 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
Year
Won
Democratic
Republican
Other
Margin
Total
R
47.7%Harris48,540
49.7%Trump50,579
2.6%Kennedy2,609
−2.0%
101,728
R
47.4%Biden50,034
50.3%Trump53,102
2.4%Jorgensen2,526
−2.9%
105,662
R
43.2%Clinton43,582
49.8%Trump50,184
7.0%Johnson7,034
−6.5%
100,800
D
53.4%Obama49,254
46.6%Romney43,021
0.0%
+6.8%
92,275
D
56.8%Obama56,852
41.3%McCain41,369
1.9%Nader1,949
+15.5%
100,170
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presidential history
Presidential margin, 2008–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2008
+15.5%
2012
+6.8%
2016
−6.5%
2020
−2.9%
2024
−2.0%
DemocraticRepublican
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current representation
Current officeholders
RErica HarrissState Senate · 56
State legislative officeholder from OpenStates nightly current-legislator data.
In 2024 it voted Republican by R+2.0, against D+15.5 in 2008, having changed party at least once across the five cycles. About 88,000 residents lived here, with White alone at 79.5% in the 2024 ACS 5-year.
Across the recorded series it reached a Democratic high of 15.5 points in 2008 and a Republican high of 6.5 points in 2016. Between 2020 and 2024 the district moved 0.9 points toward the Democratic candidate; the 2024 margin was 2.0 points.
A population of 217,244, a 76% non-Hispanic-white share, and a median household income of $70,189 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 29 and State Senate District 14.
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Political twins — state-senate districts
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.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Illinois 56th State Senate District. Akashic. https://akashic.app/sld-upper/17056/. Accessed May 20, 2026. License: CC BY 4.0.
How did Illinois 56th State Senate District vote in 2024?
In 2024, Illinois 56th State Senate District voted Republican by 2.0 points (R+2.0), carried by the Republican candidate. Out of 101,728 votes cast, 48,540 went Democratic and 50,579 went Republican.
When did Illinois 56th State Senate District last vote Democratic?
The most recent presidential election in which Illinois 56th State Senate District voted Democratic was 2012.
How many people live in Illinois 56th State Senate District?
Illinois 56th State Senate District has a population of 217,244 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Illinois 56th State Senate District?
Median household income in Illinois 56th State Senate District is $70,189 — below the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Illinois 56th State Senate District?
Akashic tracks 5 presidential elections in Illinois 56th State Senate District from 2008 to 2024. Of those, 2 went Democratic and 3 went Republican.
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