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DuPage County, Illinois Demographics 2026

DuPage County, Illinois has a population of 930,024, the 2nd most populous county in Illinois. The median household income is $112,096 and the median home value is $391,400. The poverty rate is 6.6%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

DuPage County Quick Facts

Population 930,024
Median Household Income $112,096
Median Home Value $391,400
Poverty Rate 6.6%
Unemployment Rate 4.9%
Median Age 40.2 years
Homeownership Rate 73.1%
Affordability Ratio 3.5x
Bachelor's Degree+ 51.8%
High School Graduation 93.0%
Cities/Places 27
Population 930,024 2nd of 102
Median Income $112,096 34% higher than state
Poverty Rate 6.6%
Unemployment 4.9%

How DuPage County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric2019–20232020–2024Change
Population927,263930,024+0.3%
Median household income$110,502$112,096+1.4%
Median home value$374,100$391,400+4.6%

Economy & Housing

Household Income Distribution

Under $25K 8.6%
$25K-$50K 10.7%
$50K-$100K 25.7%
$100K+ 55.0%
Detailed income brackets
Under $10K
3.5%
$10K-$15K
1.5%
$15K-$20K
1.8%
$20K-$25K
1.8%
$25K-$30K
2.0%
$30K-$35K
2.1%
$35K-$40K
2.1%
$40K-$45K
2.1%
$45K-$50K
2.5%
$50K-$60K
5.2%
$60K-$75K
7.8%
$75K-$100K
12.7%
$100K-$125K
10.4%
$125K-$150K
8.6%
$150K-$200K
13.8%
$200K+
22.3%

Employment

4.9% Unemployment Rate State: 5.8%|National: 5.2%
68.0% Labor Force Participation

Housing Overview

Owner 73.1%
Renter 26.9%
Affordability Index Affordable
3.5x home value to income ratio
Median gross rent $1,688/mo 18.1% of median household income annually

People & Demographics

Diversity Index

57out of 100
High Diversity

A diverse community with significant representation from multiple racial and ethnic groups.

State average: 61 | National average: 61

Education

Cities & Places in DuPage County

CityPopulationMedian IncomePovertyHome Value
Aurora179,898$93,6339.5%$274,800
Naperville150,692$155,1054.5%$540,200
Bolingbrook74,096$108,4009.2%$314,700
Wheaton53,557$120,0085.6%$455,700
Downers Grove50,054$115,1145.5%$449,800
Lombard43,619$100,3627.2%$335,700
Carol Stream39,460$102,3096.4%$335,000
Addison35,489$90,4318.7%$341,300
St. Charles32,854$114,3004.5%$377,400
Glendale Heights32,808$86,54510.3%$261,700
Glen Ellyn28,390$140,9386.3%$544,000
Batavia27,151$120,0565.5%$387,400
West Chicago25,395$99,92713.0%$336,800
Westmont23,724$88,0909.8%$379,100
Lisle23,407$107,4795.9%$406,800
Bloomingdale22,457$102,9285.5%$376,500
Villa Park22,345$95,0154.7%$329,000
Darien21,879$111,2154.2%$398,700
Warrenville14,718$100,32111.3%$286,100
Wood Dale13,933$91,3826.7%$318,900
Winfield10,095$135,7953.2%$386,300
Itasca9,355$114,2942.0%$390,800
Willowbrook9,131$99,2396.6%$358,600
Clarendon Hills8,659$130,3888.4%$605,800
Oak Brook8,056$175,8706.6%$903,200
Oakbrook Terrace2,723$76,90517.3%$372,400
Wayne2,562$161,7192.1%$642,700

Explore Illinois Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

DuPage County is located in Illinois with a total population of 930,024. It is the 2nd most populous county out of 102 in Illinois. The county encompasses 27 Census-designated places.

Age Demographics

The median age in DuPage County is 40.2 years. This is 3% higher than the state median of 39.0 years.

Economy, Income & Housing

The median household income in DuPage County is $112,096. This is 34% higher than the state median of $83,390. It is also 39% higher than the national median of $80,734. The poverty rate stands at 6.6%. This is 44% lower than the state poverty rate of 11.8%. The unemployment rate is 4.9%. This is 16% lower than the state rate of 5.8%. The median home value is $391,400. Housing costs are 49% higher than the state median of $263,300. The home-value-to-income ratio is 3.5x. 73.1% of occupied housing units are owner-occupied. This homeownership rate is 9% higher than the state average of 67.1%.

Race & Ethnicity

The largest racial or ethnic group in DuPage County is White (non-Hispanic), making up 62.2% of the population. Hispanic or Latino residents account for 16.1%. The Black or African American population (4.8%) is well below the state average of 13.3%. The Asian population is significantly higher than the state average (13.0% vs 5.9%).

Education

51.8% of residents aged 25 and older hold a bachelor's degree or higher. This places DuPage County in the top 10% of all counties in the state for educational attainment. This is 37% higher than the state rate of 37.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.0%. Notably, 21.1% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All figures for DuPage County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Illinois and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of DuPage County, Illinois?

DuPage County has a population of 930,024, making it the 2nd most populous county in Illinois.

What is the median income in DuPage County?

The median household income in DuPage County is $112,096 with a poverty rate of 6.6%.

How many cities are in DuPage County, Illinois?

DuPage County contains 27 Census-designated places.