DuPage County, Illinois
AkashicDuPage County, ILHarrisD+13.1
2024 precinct map of DuPage CountyPrecinct-level 2024 presidential results for DuPage County, with each precinct boundary colored by Democratic-vs-Republican margin, and gold where an independent or third-party candidate carried the precinct.
How it voted
Share of the 2024 vote
| Kamala Harris ✓Democratic | 55.0% | 251,164 |
|---|---|---|
| Donald TrumpRepublican | 41.9% | 191,243 |
| Robert F Kennedy Jr.Independent | 1.6% | 7,253 |
Harris +50Trump +50
600 precincts · 456,882 votes. Hover any precinct for its result.
The precinct map shows the 2024 presidential vote; the timeline scrubs the county’s overall result across 1892–2024.
38 presidential elections
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| D | 55.0%Harris251,164 | 41.9%Trump191,243 | 1.6%Kennedy7,253 | 456,882 | ||
| D | 57.7%Biden281,222 | 39.7%Trump193,611 | 1.3%Jorgensen6,249 | 487,763 | ||
| D | 53.1%Clinton228,622 | 38.6%Trump166,415 | 4.7%Johnson20,357 | 430,674 | ||
| D | 49.7%Obama199,460 | 48.6%Romney195,046 | 1.1%JOHNSON4,515 | 401,081 | ||
| D | 54.7%Obama228,698 | 43.9%McCain183,626 | 1.4%Nader5,649 | 417,973 | ||
| R | 44.8%Kerry180,097 | 54.4%Bush218,902 | 0.9%Badnarik3,447 | 402,446 | ||
| R | 41.9%Gore152,550 | 55.2%Bush201,037 | 2.4%Nader8,711 | 364,362 | ||
| R | 40.0%Clinton129,709 | 50.7%Dole164,630 | 8.4%Perot27,419 | 324,486 | ||
| R | 30.9%Clinton114,564 | 48.1%Bush178,271 | 20.7%Perot76,839 | 370,987 | ||
| R | 30.0%Dukakis94,285 | 69.4%Bush217,907 | 0.6%Paul1,862 | 314,054 | ||
| R | 23.8%Mondale71,430 | 75.7%Reagan227,141 | 0.5%Bergland1,644 | 300,215 | ||
| R | 24.2%Carter68,991 | 64.0%Reagan182,308 | 11.7%Anderson33,450 | 284,749 | ||
| R | 28.3%Carter72,137 | 68.8%Ford175,055 | 2.9%McCarthy7,355 | 254,547 | ||
| R | 24.8%McGovern57,043 | 75.0%Nixon172,341 | 0.2%Schmitz355 | 229,739 | ||
| R | 25.9%Humphrey48,492 | 66.6%Nixon124,893 | 7.5%Wallace14,111 | 187,496 | ||
| R | 40.1%Johnson66,229 | 59.9%Goldwater98,871 | 0.0% | 165,100 | ||
| R | 30.4%Kennedy44,263 | 69.5%Nixon101,014 | 0.1%Byrd168 | 145,445 | ||
| R | 20.1%Stevenson23,103 | 79.8%Eisenhower91,834 | 0.2%Andrews207 | 115,144 | ||
| R | 24.0%Stevenson22,489 | 75.8%Eisenhower71,134 | 0.2%Hallinan217 | 93,840 | ||
| R | 24.9%Truman15,528 | 73.6%Dewey45,794 | 1.5%Thurmond916 | 62,238 | ||
| R | 30.8%Roosevelt18,711 | 68.9%Dewey41,890 | 0.3%Thomas174 | 60,775 | ||
| R | 31.5%Roosevelt18,923 | 67.9%Willkie40,746 | 0.6%Thomas380 | 60,049 | ||
| R | 42.0%Roosevelt21,684 | 55.0%Landon28,380 | 3.0%Lemke1,568 | 51,632 | ||
| R | 40.5%Roosevelt18,547 | 56.2%Hoover25,758 | 3.3%Thomas1,504 | 45,809 | ||
| R | 27.1%Smith10,479 | 72.4%Hoover28,016 | 0.6%Thomas217 | 38,712 | ||
| R | 8.1%Davis1,893 | 72.8%Coolidge16,917 | 19.0%La Follette4,423 | 23,233 | ||
| R | 13.9%Cox2,084 | 82.0%Harding12,280 | 4.1%Debs612 | 14,976 | ||
| R | 31.5%Wilson4,816 | 62.9%Hughes9,610 | 5.6%Benson858 | 15,284 | ||
| O | 28.1%Wilson2,236 | 14.3%Taft1,136 | 57.6%Roosevelt4,589 | 7,961 | ||
| R | 27.9%Bryan1,975 | 64.0%Taft4,530 | 8.1%Debs575 | 7,080 | ||
| R | 23.5%Parker1,407 | 68.1%Roosevelt4,078 | 8.4%Debs506 | 5,991 | ||
| R | 32.2%Bryan1,947 | 63.9%McKinley3,869 | 3.9%Woolley237 | 6,053 | ||
| R | 26.6%Bryan1,588 | 68.9%McKinley4,115 | 4.5%Palmer268 | 5,971 | ||
| R | 43.8%Cleveland2,154 | 50.3%Harrison2,478 | 5.9%Weaver290 | 4,922 | ||
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presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −6.6% |
| 1896 | −42.3% |
| 1900 | −31.8% |
| 1904 | −44.6% |
| 1908 | −36.1% |
| 1912 | +13.8% |
| 1916 | −31.4% |
| 1920 | −68.1% |
| 1924 | −64.7% |
| 1928 | −45.3% |
| 1932 | −15.7% |
| 1936 | −13.0% |
| 1940 | −36.3% |
| 1944 | −38.1% |
| 1948 | −48.6% |
| 1952 | −51.8% |
| 1956 | −59.7% |
| 1960 | −39.0% |
| 1964 | −19.8% |
| 1968 | −40.7% |
| 1972 | −50.2% |
| 1976 | −40.4% |
| 1980 | −39.8% |
| 1984 | −51.9% |
| 1988 | −39.4% |
| 1992 | −17.2% |
| 1996 | −10.8% |
| 2000 | −13.3% |
| 2004 | −9.6% |
| 2008 | +10.8% |
| 2012 | +1.1% |
| 2016 | +14.4% |
| 2020 | +18.0% |
| 2024 | +13.1% |
DemocraticRepublican
voter registration
Registered voters
Total registered voters, over time
Registered voters
| Year | Total registered |
|---|---|
| 2016 | 685,151 |
| 2018 | 678,091 |
| 2020 | 682,516 |
| 2022 | 689,080 |
| 2024 | 703,326 |
Source: U.S. Election Assistance Commission (EAVS)
DuPage County, long one of Illinois's most reliably Republican counties, has shifted markedly leftward over the past decade as college-educated suburban voters realigned. In 2024 it delivered a Democratic presidential margin of 13.1 points.
Across the recorded series it reached a Democratic high of 18.0 points in 2020 and a Republican high of 68.1 points in 1920. Between 2020 and 2024 the county moved 4.8 points toward the Republican candidate; the 2024 margin was 13.1 points.
A population of 930,024, a 62% non-Hispanic-white share, and a median household income of $112,096 describe the county. The county's voting pattern over the last decade is most similar to that of Kane County and Charleston County.
Most similar counties
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.
DuPage County, Illinois. Akashic. https://akashic.app/county/17043/. Accessed May 20, 2026. License: CC BY 4.0.
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Cities & towns in DuPage County
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Frequently asked questions
How did DuPage County, Illinois vote in 2024?
In 2024, DuPage County, Illinois voted Democratic by 13.1 points (D+13.1), carried by the Democratic candidate. Out of 456,882 votes cast, 251,164 went Democratic and 191,243 went Republican.
When did DuPage County, Illinois last vote Republican?
The most recent presidential election in which DuPage County, Illinois voted Republican was 2004.
How many people live in DuPage County, Illinois?
DuPage County, Illinois has a population of 930,024 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in DuPage County, Illinois?
Median household income in DuPage County, Illinois is $112,096 — above the national median of $80,734. The Illinois state median is $83,390.
What is the political history of DuPage County, Illinois?
Akashic tracks 38 presidential elections in DuPage County, Illinois from 1876 to 2024. Of those, 5 went Democratic and 28 went Republican.