congressional districtIllinois 9th Congressional District
presidential margin
2004–2024 · Democratic minus Republican
2004D+23.9
2008D+39.0
2012D+32.1
2016D+42.3
2020D+41.3
2024D+36.4
net swing · 2004→2024D+12.5D+23.9 → D+36.4
vs. U.S. · 2024D+37.9D+36.4 vs R+1.5
presidential returns
2024 turnout 65.5% of 528,541 citizens 18+
Year
Democrat
Republican
Others
Total
CVAP
Turnout
2024
233,742
107,626
4,767
346,135
528,541
65.5%
2020
264,626
108,160
6,309
379,095
521,600†
72.7%
2016
232,660
88,203
20,514
341,377
514,701†
66.3%
2012
198,490
100,919
4,859
304,268
500,315†
60.8%
2008
221,341
95,987
4,269
321,597
499,397†
64.4%
2004
189,953
116,323
1,794
308,070
498,479†
61.8%
† 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-9IllinoisUnited States
German15.0%16.1%12.5%
Irish12.6%10.6%9.4%
Polish10.2%6.0%2.2%
Italian7.3%5.4%4.8%
English5.8%6.9%9.5%
American3.4%3.3%5.3%
Swedish2.0%1.5%—
Russian1.6%——
Asian Indian4.8%2.1%1.4%
Chinese2.9%1.0%1.3%
Filipino2.7%1.0%0.9%
Korean1.3%0.4%0.4%
Pakistani0.8%0.3%—
Vietnamese0.6%0.2%0.6%
Japanese0.4%—0.2%
Mexican9.8%14.4%11.3%
Puerto Rican1.2%1.7%1.8%
Guatemalan0.2%0.3%0.5%
Ecuadorian0.2%0.3%—
Colombian0.2%0.3%0.4%
African American†8.1%12.1%9.9%
African0.2%0.5%0.5%
Nigerian0.2%0.3%0.2%
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-9
Illinois
United States
Median age
40.8
39.1
39.1
Age 18–24
8.8%
9.1%
9.2%
Age 65 and older
16.1%
16.9%
17.2%
Household economy
Measure
IL-9
Illinois
United States
Median household income
$92,513
$83,390
$84,427
Poverty rate
11.0%
11.8%
12.5%
Bachelor's degree or higher (25+)
42.9%
37.9%
35.6%
Languages at home
Measure
IL-9
Illinois
United States
Speaks a non-English language at home
34.4%
24.1%
22.3%
Spanish
20.4%
14.0%
13.6%
Russian, Polish, or other Slavic
4.0%
2.5%
0.7%
Other Indo-European
3.3%
2.6%
2.0%
Chinese (incl. Mandarin & Cantonese)
1.3%
0.9%
1.1%
Religious landscape
Measure
IL-9
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 9th Congressional District
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+23.9%
2008
+39.0%
2012
+32.1%
2016
+42.3%
2020
+41.3%
2024
+36.4%
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
9
D
68.4%231,722
31.6%107,106
338,828
2022
9
D
71.7%179,615
28.3%70,915
250,530
2020
9
D
71.0%262,045
29.0%107,125
369,170
2018
9
D
73.5%213,368
26.5%76,983
290,351
2016
9
D
66.5%217,306
33.5%109,550
326,948
2014
9
D
66.1%141,000
33.9%72,384
213,450
2012
9
D
66.3%194,869
33.7%98,924
293,807
2010
9
D
66.3%117,553
31.1%55,182
177,207
2008
9
D
74.7%181,948
22.0%53,593
243,694
2006
9
D
74.6%122,852
25.4%41,858
164,713
2004
9
D
75.7%175,282
24.3%56,135
231,417
2002
9
D
70.3%118,642
26.8%45,307
168,836
2000
9
D
76.4%147,002
23.6%45,344
192,346
1998
9
D
74.6%107,878
23.1%33,448
144,610
1996
9
D
63.4%124,319
36.6%71,763
196,082
1994
9
D
66.1%94,404
33.9%48,419
142,823
1992
9
D
68.0%162,942
27.0%64,760
239,703
1990
9
D
71.2%96,557
28.8%39,031
135,588
1988
9
D
66.1%135,583
32.9%67,604
205,187
1986
9
D
71.6%92,738
28.4%36,715
129,453
1984
9
D
67.5%144,879
32.5%69,613
214,495
1982
9
D
66.5%114,083
32.0%54,851
171,529
1980
9
D
73.1%106,543
26.9%39,244
145,788
1978
9
D
75.3%87,543
24.7%28,673
116,217
1976
9
D
72.1%121,915
27.8%47,054
168,983
Illinois's 9th stretches along Lake Michigan from Chicago's Far North Side through Evanston and into the northern suburbs, combining dense urban precincts with high-education lakefront communities to produce presidential margins exceeding 35 points in recent cycles.
Across the recorded series it reached a Democratic high of 42.3 points in 2016. Between 2020 and 2024 the district moved 4.8 points toward the Republican candidate; the 2024 margin was 36.4 points.
A population of 751,737, a 59% non-Hispanic-white share, and a median household income of $92,513 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 5 and Congressional District 10.
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 9th Congressional District. Akashic. https://akashic.app/cd/1709/. Accessed May 20, 2026. License: CC BY 4.0.
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How did Illinois 9th Congressional District vote in 2024?
In 2024, Illinois 9th Congressional District voted Democratic by 36.4 points (D+36.4), carried by the Democratic candidate. Out of 346,135 votes cast, 233,742 went Democratic and 107,626 went Republican.
How many people live in Illinois 9th Congressional District?
Illinois 9th Congressional District has a population of 751,737 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Illinois 9th Congressional District?
Median household income in Illinois 9th Congressional District is $92,513 — above the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Illinois 9th Congressional District?
Akashic tracks 6 presidential elections in Illinois 9th Congressional District from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
