akashic
1876–2024
State House District 90·Illinois

Illinois 90th State House District votes the way the country votes.

Downstate district where presidential margins have run reliably double-digit Republican

1876 — 2024·38 elections
IL
Latest
R+3
in 2024
Archetype
Bellwether
since the recent cycles
Population
158,822
2024 ACS

Illinois 90th State House District, Illinois: Bellwether district. In 2024, voted R+3%. Republican peak: R+63 in 1920.

Key facts

2024 presidential margin
R+3MIT Election Lab
Political archetype
BellwetherAkashic typology
Population
158,8222024 5-year
Median household income
$66,7642024 5-year
White (non-Hispanic)
68.4%2024 5-year
Black
11.0%2024 5-year
Hispanic / Latino
14.9%2024 5-year
Peak Democratic margin
D+11 in 2008MIT Election Lab
Peak Republican margin
R+63 in 1920MIT Election Lab
2024 results by constituent county
3 counties · 1 D · 2 R
R+60
D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonMarginDemocraticRepublicanTotal
R
−3.2%
32,95535,14169,322
R
−1.0%
35,25435,99073,284
R
−3.0%
30,58032,65468,205
D
+3.9%
34,58031,95567,977
D
+11.5%
39,16930,98371,349
R
−3.6%
32,80835,30968,640
R
−4.0%
28,55330,99061,491
R
−0.2%
25,32125,44856,180
D
+3.4%
26,55024,37163,511
R
−12.3%
24,81331,82356,974
R
−21.2%
24,08537,13161,586
R
−17.2%
18,16528,39359,316
R
−12.9%
23,41930,54355,138
R
−25.8%
19,87133,76453,760
R
−14.8%
20,44928,19052,184
D
+8.9%
27,88023,33751,217
R
−14.6%
22,42030,10252,603
R
−28.7%
16,48529,74946,285
R
−21.7%
17,74427,60945,430
R
−8.6%
16,10419,17735,641
R
−10.6%
16,59820,54637,327
R
−11.0%
17,26721,54339,032
D
+2.1%
17,64916,90935,802
R
−12.0%
13,36917,18431,843
R
−54.6%
6,29621,71628,247
R
−55.9%
2,19714,84622,619
R
−62.7%
2,88314,42418,402
R
−33.4%
5,53611,66618,371
O
+8.0%
2,8912,02910,777
R
−35.6%
2,9516,67810,478
R
−46.2%
2,0846,4909,543
R
−33.7%
3,0836,4049,869
R
−36.4%
2,9566,4819,685
R
−20.3%
2,9894,6628,247
—
No data
———
—
No data
———
—
No data
———
—
No data
———

Demographics

Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
German
24.0%
Irish
12.0%
English
9.2%
Italian
6.3%
Polish
3.8%
American
2.9%
Scottish
1.3%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 40.3 in this county, 39.1 nationally
Male
Age
Female
0.8%
85+
1.8%
2.5%
75–84
2.9%
5.3%
65–74
5.9%
6.5%
55–64
6.8%
5.9%
45–54
6.0%
5.8%
35–44
6.0%
6.1%
25–34
6.3%
4.2%
18–24
4.0%
8.9%
5–17
8.4%
3.0%
<5
2.9%
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$66,764
State House District 90 ranks near the middle of US counties.
State House District 90$66,764
Illinois$83,390
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
15.0%
Children face moderate poverty.
Children under 1821.5%
Working age (18–64)13.4%
Seniors (65+)10.2%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
85.9%
speak English only
Spanish9.7%
Other Indo-European1.9%
Asian & Pacific Islander1.4%
Other languages1.1%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Catholic & Orthodox
24.1%
Other Christian
13.8%
Mainline Protestant
6.1%
Pentecostal & Holiness
5.7%
Methodist
2.9%
Baptist
2.8%
Non-Christian
1.5%
Source · 2020 US Religion Census. Remaining 43.1% of residents not counted as adherents by any reporting body.

Illinois House District 90 leans heavily toward Republican presidential candidates, posting a 14.6-point margin in 2024. Its population of roughly 108,000 reflects the mid-sized downstate communities that anchor this corner of the state's legislative map.

The Democratic margin in Illinois 90th State House District has rarely exceeded eleven points in modern history; the Republican margin has rarely exceeded sixty-three points. 2024 delivered the district to the Republican candidate by three points.

Its demographics resemble the country more than they resemble most districts. A 68% non-Hispanic-white share, a 15% poverty rate, and a median household income of $66,764 — all within the broad national range.

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.
State House District 90, Illinois. Akashic. https://akashic.app/sld-lower/17090/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0

Frequently asked questions

How did State House District 90, Illinois vote in 2024?
In 2024, State House District 90, Illinois voted Republican by 3.2 points (R+3), carried by the Republican candidate. Out of 69,322 votes cast, 32,955 went Democratic and 35,141 went Republican.
What is State House District 90, Illinois's political archetype?
Akashic classifies State House District 90, Illinois as a "Bellwether" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 5 times, Republican 28 times, and other 1 times.
When did State House District 90, Illinois last vote Democratic?
The most recent presidential election in which State House District 90, Illinois voted Democratic was 2012.
How many people live in State House District 90, Illinois?
State House District 90, Illinois has a population of 158,822 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in State House District 90, Illinois?
Median household income in State House District 90, Illinois is $66,764 — below the national median of $80,734. The Illinois state median is $83,390.
What is the political history of State House District 90, Illinois?
Akashic tracks 38 presidential elections in State House District 90, Illinois from 1876 to 2024. Of those, 5 went Democratic and 28 went Republican. The district's archetype — "Bellwether" — captures the overall trajectory of that voting record.