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County in Illinois

DuPage County

About 930,000 people, median household income $112,100.

District lines run through DuPage County, so who represents you here depends on where you live. Search your address to see yours.

Who lives in DuPage County

Census survey estimates for 2020 to 2024, rounded.

People

Population
930,000
Median age
40.2 years
Under 18
22%
65 and over
17%
Veterans, of adults
4%
Speak another language at home
30%

Race and ethnicity

Hispanic or Latino, of any race
16%
White, not Hispanic
62%
Black, not Hispanic
5%
Asian, not Hispanic
13%

Income and housing

Median household income
$112,100
Below the poverty line
7%
Bachelor's or higher, adults 25+
52%
Owner-occupied homes
73%
Median home value
$391,000

2024 vote for president

Kamala Harris, Democrat
55.0%
Donald Trump, Republican
41.9%
Other candidates
3.2%

Votes counted, by precinct. Source: MIT Election Data and Science Lab, precinct returns (public domain).

Represent all of DuPage County

DuPage County's districts (32)

U.S. House (5)

Illinois Senate (11)

Illinois House (16)

Towns (39)

Cities, villages and unincorporated communities, with the number of people in the county’s part of each at the 2020 Census.

15 more towns

Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–2024; towns and counties from the 2020 Census, Demographic and Housing Characteristics. Figures rounded by us. Retrieved 2026-10-19. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.