County · Illinois

DuPage County, Illinois

DuPage County, Illinois has a quality-of-life score of 91 out of 100 (very high), ranking #289 of 3,143 US counties. Within Illinois it ranks #3 of 102 counties. It ranks best on injury deaths (low), frequent mental distress (low) and child poverty rate (low). It ranks worst on effective property tax rate (high), fine particulate matter (PM2.5) (high) and high ozone days (high).

91Very high
Quality-of-life score
#289 of 3,143 counties
Illinois
#3 of 102 in IL
Population
934,298 (2025)
Land area
328 mi²
Density
2,849.4 /mi²
FIPS code
17043

Percentile-based score (100 is the best in the country) from 80 of 80 indicators, with the default “Explorer” weights.

Location of DuPage County, Illinois

Scores by category

Each category averages its indicators' percentile scores among US counties.

  • Safety99#43/3,096
  • Economy95#171/3,143
  • Housing22#2,446/3,140
  • Health100#10/3,144
  • Healthcare98#64/3,143
  • Environment11#2,765/3,108
  • Education96#132/3,144
  • Infrastructure97#84/3,144
  • Community79#665/3,144
  • Leisure & amenities79#666/3,143

Strengths · Weaknesses

Indicators where DuPage County, Illinois ranks highest and lowest among US counties (score = percentile, 100 = best).

Strengths

Weaknesses

What changed in five years

How each measure moved between two periods about five years apart, read against whether more or less is better, the published margin of error and the same change in other places.

Counties like DuPage County, Illinois five years ago that improved

The places whose measures looked most like those of DuPage County, Illinois in the earlier period, ranked by how many measures improved beyond the margin of error, minus how many declined. A comparison of published data, not a forecast and not advice.

Who lives here

Age, race and education of residents, from the American Community Survey. Shares are of all residents (age), residents of every origin (race) or adults 25 and over (education).

Income

How household income is spread, not just the middle: each bar is the share of households in that income range.

Homes

Who owns and who rents, what homes cost, and what the housing stock looks like.

Getting to work

How workers travel to their job and how long it takes them.

Jobs and pay

What the largest occupations here pay, from the Bureau of Labor Statistics' Occupational Employment and Wage Statistics survey.

The Bureau of Labor Statistics publishes pay by metro area, not by county or city. The metro area page lists its largest occupations and lets you look up any job.

Pay in the Chicago-Naperville-Elgin, IL-IN

Local businesses

Employer businesses and sole proprietors by industry, per resident and against the state and the nation. Counts of businesses next to counts of people, not a measure of demand.

Federal contract spending

Federal grants & assistance

Grants, loans (counted at their subsidy cost), direct payments and insurance, by fiscal year of the action (USAspending.gov, FABS). Reported apart from contracts and never added to them.

Public money & outcomes

Federal money per resident by fiscal year next to how the place changed, and, when its money jumped, how it compares with similar counties. A comparison, not cause and effect.

Representation in Congress

Members serving today, with their record in the current Congress (party-unity votes cast with their caucus, roll calls missed). Not a grade.

Metro area

The metro or micro area DuPage County belongs to. A county is in at most one.

Cities and towns in DuPage County

Places whose residents live mostly in DuPage County, largest first.

  1. Naperville150,692
  2. Wheaton53,557
  3. Downers Grove50,054
  4. Elmhurst45,671
  5. Lombard43,619
  6. Bartlett40,501
  7. Carol Stream39,460
  8. Addison35,489
  9. Woodridge33,941
  10. Glendale Heights32,808
  11. Glen Ellyn28,390
  12. West Chicago25,395
  13. Westmont23,724
  14. Lisle23,407
  15. Roselle22,752
  16. Bloomingdale22,457
  17. Villa Park22,345
  18. Darien21,879
  19. Bensenville18,603
  20. Hinsdale17,175
  21. Warrenville14,718
  22. Wood Dale13,933
  23. Burr Ridge11,141
  24. Winfield10,095

Neighboring counties

Places that share a border, best score first.

Similar counties

Closest indicator profiles across the country (no model: score distances).

Data and sources

Latest published value of each indicator; periods differ by source. Values flagged by their publisher are marked.

JSON · /api/v1/places/17043