Akashic
1892–2024
Akashic
Illinois 27th State Senate District
presidential margin
2008D+15.02012D+5.22016D+18.72020D+21.22024D+17.6
full record · 2008 → 2024
D+17.6
2024
median income$102,390U.S. $80,734 · IL $83,390
median age41.2U.S. 39.1 · IL 39.1
poverty rate6.9%U.S. 12.5% · IL 11.8%
bachelor’s+ (25+)42.7%U.S. 35.6% · IL 37.9%
non-english35.8%U.S. 22.3% · IL 24.1%
race · ethnicity · ancestry
German15.2%
Irish14.2%
Polish11.9%
Mexican12.4%
Puerto Rican1.7%
Ecuadorian0.4%
Asian Indian3.7%
Chinese2.5%
Filipino2.2%
African American†2.5%
religion

Religious adherence is published only at the county level (U.S. Religion Census). See Cook County.

American Community Survey 2024 5-year (income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024.

Illinois 27th State Senate District

Akashic
Illinois 27th State Senate DistrictHarrisD+17.6
2024
2024 presidential margin for Illinois 27th State Senate DistrictThe boundary of Illinois 27th State Senate District, filled by its 2024 presidential margin (D+17.6), over faint outlines of the counties it is drawn from.Illinois 27th State Senate District · D+17.6
How it voted
Share of the 2024 vote
Kamala Harris ✓Democratic58.2%56,587
Donald TrumpRepublican40.5%39,439
Robert F. Kennedy Jr.Independent1.3%1,269
D+60
R+60
District boundary, filled by its own 2024 D-vs-R margin — precinct detail where available, over the 1 county 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 (1 county) — table
2024 presidential result by county for Illinois 27th State Senate District — winner and D-vs-R margin.
CountyWinnerMargin
Cook County, ILDemocraticD+41.6
5 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonDemocraticRepublicanOtherMarginTotal
D
58.2%Harris56,587
40.5%Trump39,439
1.3%Kennedy1,269
+17.6%
97,295
D
59.7%Biden62,317
38.4%Trump40,140
1.9%Jorgensen1,975
+21.2%
104,432
D
55.6%Clinton51,542
36.9%Trump34,224
7.5%Johnson6,926
+18.7%
92,692
D
52.6%Obama44,449
47.4%Romney40,075
0.0%
+5.2%
84,524
D
56.9%Obama50,969
41.9%McCain37,539
1.2%Nader1,111
+15.0%
89,619
presidential history
Presidential margin, 2008–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 2008 to 2024. Most recent: +17.6% in 2024.+17.6%DR20082024
Presidential margin over time
YearMargin (D minus R)
2008+15.0%
2012+5.2%
2016+18.7%
2020+21.2%
2024+17.6%
DemocraticRepublican
current representation
Current officeholders
DMark WalkerState Senate · 27

State legislative officeholder from OpenStates nightly current-legislator data.

Source · OpenStates current legislator CSV.

With a 2024 presidential margin exceeding 50 points, this downstate district ranks among the state's most reliably conservative constituencies, reflecting the rural and small-city demographic patterns common to central and southern Illinois.

Across the recorded series it reached a Democratic high of 21.2 points in 2020. Between 2020 and 2024 the district moved 3.6 points toward the Republican candidate; the 2024 margin was 17.6 points.

A population of 217,152, a 68% non-Hispanic-white share, and a median household income of $102,390 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 41.

Political twins — state-senate districts

The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.

State Senate District 29
Illinois
95.4twin score
12-yr trendPolish ancestry% Catholic
State Senate District 41
Illinois
91.1twin score
12-yr trendPolish ancestry% Catholic
State Senate District 21
Illinois
89.5twin score
12-yr trend2016–2024 trajectoryPolish ancestry≠ median income

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 27th State Senate District. Akashic. https://akashic.app/sld-upper/17027/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Frequently asked questions

How did Illinois 27th State Senate District vote in 2024?
In 2024, Illinois 27th State Senate District voted Democratic by 17.6 points (D+17.6), carried by the Democratic candidate. Out of 97,295 votes cast, 56,587 went Democratic and 39,439 went Republican.
How many people live in Illinois 27th State Senate District?
Illinois 27th State Senate District has a population of 217,152 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Illinois 27th State Senate District?
Median household income in Illinois 27th State Senate District is $102,390 — above the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Illinois 27th State Senate District?
Akashic tracks 5 presidential elections in Illinois 27th State Senate District from 2008 to 2024. Of those, 5 went Democratic and 0 went Republican.