† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary 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
GroupSummitIllinoisUnited States
Mexican60.2%14.4%11.3%
Puerto Rican8.1%1.7%1.8%
Ecuadorian1.8%0.3%—
Guatemalan1.5%0.3%0.5%
Colombian1.2%0.3%0.4%
Cuban0.9%0.2%0.7%
Venezuelan0.9%——
Honduran0.6%0.2%0.3%
German5.2%16.1%12.5%
Irish4.8%10.6%9.4%
Polish4.0%6.0%2.2%
Italian2.8%5.4%4.8%
English2.1%6.9%9.5%
American1.3%3.3%5.3%
Swedish0.7%1.5%—
Russian0.6%——
African American†3.2%12.1%9.9%
Asian Indian1.2%2.1%1.4%
Chinese0.8%1.0%1.3%
Filipino0.7%1.0%0.9%
Korean0.3%0.4%0.4%
Pakistani0.2%0.3%—
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
Summit
Illinois
United States
Median age
38.1
39.1
39.1
Age 18–24
8.5%
9.1%
9.2%
Age 65 and older
17.3%
16.9%
17.2%
Household economy
Measure
Summit
Illinois
United States
Median household income
$61,863
$83,390
$84,427
Poverty rate
11.2%
11.8%
12.5%
Bachelor's degree or higher (25+)
14.0%
37.9%
35.6%
Languages at home
Measure
Summit
Illinois
United States
Speaks a non-English language at home
74.5%
24.1%
22.3%
Spanish
67.9%
14.0%
13.6%
Russian, Polish, or other Slavic
3.0%
2.5%
0.7%
Other Indo-European
1.4%
2.6%
2.0%
Religious landscape
Measure
Summit
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.
Summit, Illinois
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+54.7%
2008
+63.2%
2012
+61.7%
2016
+61.1%
2020
+54.8%
2024
+31.0%
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.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
64.8%Harris1,554
33.8%Trump811
1.5%
D+31.0
R+23.8
D+32.4
2,400
D
76.3%Biden2,129
21.5%Trump600
2.2%
D+54.8
R+6.3
D+50.4
2,790
D
78.6%Clinton2,084
17.5%Trump463
4.0%
D+61.1
R+0.6
D+59.0
2,653
D
80.1%Obama1,778
18.4%Romney408
1.5%
D+61.7
R+1.5
D+57.9
2,220
D
81.0%Obama2,082
17.8%McCain457
1.2%
D+63.2
D+8.5
D+55.9
2,571
D
77.3%Kerry1,837
22.6%Bush537
0.0%
D+54.7
—
D+57.2
2,375
Summit sits in the Upper Midwest. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 63.2 points in 2008. Between 2020 and 2024 the city moved 23.8 points toward the Republican candidate; the 2024 margin was 31.0 points.
A population of 10,846, a 12% non-Hispanic-white share, and a median household income of $61,863 describe the city. The city's voting pattern over the last decade is most similar to that of Northlake and Posen.
Akashic
Political twins — cities
The cities 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.
In 2024, Summit, Illinois voted Democratic by 31.0 points (D+31.0), carried by the Democratic candidate. Out of 2,400 votes cast, 1,554 went Democratic and 811 went Republican.
How many people live in Summit, Illinois?
Summit, Illinois has a population of 10,846 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Summit, Illinois?
Median household income in Summit, Illinois is $61,863 — below the national median of $80,734. The Illinois state median is $83,390.
What is the political history of Summit, Illinois?
Akashic tracks 6 presidential elections in Summit, Illinois from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
