congressional districtIllinois 8th Congressional District
presidential margin
2004–2024 · Democratic minus Republican
2004D+0.1
2008D+18.5
2012D+9.5
2016D+15.7
2020D+15.4
2024D+6.9
net swing · 2004→2024D+6.8D+0.1 → D+6.9
vs. U.S. · 2024D+8.4D+6.9 vs R+1.5
presidential returns
2024 turnout 62.6% of 494,166 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
162,615
141,345
5,154
309,114
494,166
62.6%
2020
189,523
138,078
6,189
333,790
490,335†
68.1%
2016
158,539
113,070
18,795
290,404
480,879†
60.4%
2012
139,619
115,082
4,137
258,838
465,473†
55.6%
2008
160,042
109,493
3,948
273,483
462,161†
59.2%
2004
129,150
128,982
2,421
260,553
458,850†
56.8%
† Citizen voting-age population estimated for prior cycles from the constituent-county ACS trend anchored to the current figure. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
District by 2024 margin · Precinct returns · VEST · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupIL-8IllinoisUnited States
German14.7%16.1%12.5%
Irish12.1%10.6%9.4%
Polish9.5%6.0%2.2%
Italian7.7%5.4%4.8%
English5.7%6.9%9.5%
American2.9%3.3%5.3%
Swedish1.9%1.5%—
Russian0.9%——
Mexican18.2%14.4%11.3%
Puerto Rican2.1%1.7%1.8%
Guatemalan0.5%0.3%0.5%
Colombian0.4%0.3%0.4%
Ecuadorian0.4%0.3%—
Cuban0.3%0.2%0.7%
Venezuelan0.3%——
Honduran0.2%0.2%0.3%
Asian Indian5.1%2.1%1.4%
Filipino2.5%1.0%0.9%
Chinese2.5%1.0%1.3%
Korean1.1%0.4%0.4%
Pakistani0.9%0.3%—
Vietnamese0.5%0.2%0.6%
African American†4.1%12.1%9.9%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
IL-8
Illinois
United States
Median age
39.9
39.1
39.1
Age 18–24
8.6%
9.1%
9.2%
Age 65 and older
16.2%
16.9%
17.2%
Household economy
Measure
IL-8
Illinois
United States
Median household income
$99,637
$83,390
$84,427
Poverty rate
7.4%
11.8%
12.5%
Bachelor's degree or higher (25+)
43.5%
37.9%
35.6%
Languages at home
Measure
IL-8
Illinois
United States
Speaks a non-English language at home
34.1%
24.1%
22.3%
Spanish
20.2%
14.0%
13.6%
Russian, Polish, or other Slavic
3.7%
2.5%
0.7%
Other Indo-European
3.8%
2.6%
2.0%
Chinese (incl. Mandarin & Cantonese)
1.2%
0.9%
1.1%
Religious landscape
Measure
IL-8
Illinois
United States
Catholic
—
24.2%
18.6%
Evangelical Protestant
—
11.7%
16.5%
Unclaimed / not counted
—
49.2%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Illinois 8th Congressional District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+0.1%
2008
+18.5%
2012
+9.5%
2016
+15.7%
2020
+15.4%
2024
+6.9%
DemocraticRepublican
6 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004 sub-county results are estimated: the source's block-level detail for this cycle was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Federal officeholders only. State and local officeholders are planned for the next data pass.
Congressional elections · 25 House races
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
Source · MIT Election Lab (MEDSL), House. CC-BY 4.0.
Year
District
Won
Democratic
Republican
Total
2024
8
D
57.1%172,920
42.9%130,153
303,073
2022
8
D
56.9%117,880
43.1%89,335
207,215
2020
8
D
73.2%186,251
0.0%0
254,578
2018
8
D
66.0%130,054
34.0%67,073
197,127
2016
8
D
58.3%144,954
41.7%103,617
248,571
2014
8
D
55.7%84,178
44.3%66,878
151,056
2012
8
D
54.7%123,206
45.3%101,860
225,066
2010
8
R
48.3%97,825
48.5%98,115
202,435
2008
8
D
60.7%179,444
39.3%116,081
295,525
2006
8
D
50.9%93,355
44.0%80,720
183,394
2004
8
D
51.7%139,792
48.3%130,601
270,393
2002
8
R
42.6%70,626
57.4%95,275
165,926
2000
8
R
39.0%90,777
61.0%141,918
232,695
1998
8
R
31.4%47,614
68.6%104,242
151,856
1996
8
R
36.1%74,068
62.2%127,763
205,305
1994
8
R
35.1%47,654
64.9%88,225
135,879
1992
8
R
40.4%96,419
55.7%132,887
238,633
1990
8
D
79.1%70,151
0.0%0
88,680
1988
8
D
74.6%107,728
24.0%34,659
144,324
1986
8
D
78.7%82,873
21.3%22,383
105,256
1984
8
D
71.3%114,385
28.7%46,030
160,417
1982
8
D
83.4%124,318
16.6%24,666
148,985
1980
8
D
84.7%98,524
15.3%17,845
116,373
1978
8
D
86.0%81,457
14.0%13,302
94,762
1976
8
D
80.5%105,595
19.5%25,512
131,107
Illinois's 8th stretches through the northwest Chicago suburbs, a corridor that has trended steadily toward Democratic candidates over the past decade as college-educated and Latino voters reshaped its electorate. The 2024 presidential margin landed at D+10.
Across the recorded series it reached a Democratic high of 18.5 points in 2008. Between 2020 and 2024 the district moved 8.5 points toward the Republican candidate; the 2024 margin was 6.9 points.
A population of 754,138, a 54% non-Hispanic-white share, and a median household income of $99,637 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 11 and Congressional District 5.
Akashic
Political twins — districts
The congressional 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 →
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Illinois 8th Congressional District. Akashic. https://akashic.app/cd/1708/. Accessed May 20, 2026. License: CC BY 4.0.
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How did Illinois 8th Congressional District vote in 2024?
In 2024, Illinois 8th Congressional District voted Democratic by 6.9 points (D+6.9), carried by the Democratic candidate. Out of 309,114 votes cast, 162,615 went Democratic and 141,345 went Republican.
How many people live in Illinois 8th Congressional District?
Illinois 8th Congressional District has a population of 754,138 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Illinois 8th Congressional District?
Median household income in Illinois 8th Congressional District is $99,637 — above the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Illinois 8th Congressional District?
Akashic tracks 6 presidential elections in Illinois 8th Congressional District from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
