DuPage County, Illinois

• White (non-Hispanic) 578,175 62.2%
• Hispanic or Latino (any race) 149,533 16.1%
• Black or African American (non-Hispanic) 45,054 4.8%
• Asian (non-Hispanic) 120,470 13.0%
• Two or more races (non-Hispanic) 32,402 3.5%
• American Indian / Alaska Native (non-Hispanic) 323 0.0%
• Native Hawaiian / Pacific Islander (non-Hispanic) 205 0.0%
• Some other race (non-Hispanic) 3,862 0.4%

• Under 18 206,075 22.2%
• 18–24 77,008 8.3%
• 25–44 242,436 26.1%
• 45–64 243,265 26.2%
• 65 and over 161,240 17.3%

Median household income

$110,974

90% interval $106,689–$115,259

+$27,647 vs IL · 2nd of 102

Below poverty line

6.3%

90% interval 5.5%–7.1%

−5.2 pp vs IL · 97th of 102

Unemployment (12-mo)

4.2%

−0.68 pp vs. state

County GDP

$129.7B

11.3% of state

Avg. annual pay

$81,891

Establishments

33,761

• Trade, transportation & utilities 140,244 22.3%
• Education & health services 137,699 21.9%
• Professional & business services 125,267 19.9%
• Manufacturing 61,387 9.8%
• Leisure & hospitality 57,299 9.1%
• Financial activities 34,349 5.5%
• Construction 30,219 4.8%
• Other services 19,667 3.1%
• Public administration 11,789 1.9%
• Information 8,905 1.4%
• Natural resources & mining 653 0.1%

Home ownership

73.1%

+6.0 pp vs IL · 74th of 102

Median gross rent

$1,688

+$414 vs IL · 2nd of 102

Owner-occupied

256,474

Renter-occupied

94,284

• Moderately concentrated

  Top three sectors employ 64% of the county workforce. Substantial intra-sector overlap among panelists is likely; confirm employer relationships before sector-specific framing.

• Wide wage spread

  Highest-paid sector (Information, $136,891/yr) pays 4.3× the lowest (Leisure & hospitality, $31,549/yr). Stark intra-economy class divisions on the panel; calibrate damages and lost-wages framing to that range.

• Institutional employer scale

  Average establishment employs 19 workers, typical of an institutional-employer economy where large hospitals, plants, schools, and government agencies dominate. Expect many panelists to share an employer rather than work for themselves.

• Democratic 251,164 55.9%
• Republican 191,243 42.5%
• Other / third-party 7,253 1.6%

• Spanish 100,897 11.5%
• Russian, Polish, or other Slavic 34,251 3.9%
• Chinese 11,197 1.3%
• Tagalog 10,125 1.2%
• Arabic 7,288 0.8%
• Vietnamese 3,495 0.4%
• Korean 3,147 0.4%
• German or other West Germanic 2,369 0.3%
• French, Haitian, or Cajun 2,134 0.2%

Households

350,758

Family households

244,158

69.6% of households

Married couples w/ children

82,096

33.6% of families

Single-mother families

14,547

6.0% of families

Veterans

25,169

3.5% of civilians 18+

• Catholic 337,802 36.2%
• Other (non-Christian + minor traditions) 97,262 10.4%
• Evangelical Protestant 89,610 9.6%
• Mainline Protestant 53,455 5.7%
• Orthodox 11,417 1.2%
• Black Protestant 3,502 0.4%

Health insured

94.8%

±0.3 pp

Uninsured

5.2%

±0.3 pp

44th of 102

With a disability

9.0%

±0.2 pp

101st of 102

Bachelor's or higher

51.8%

±0.6 pp

+14.0 pp vs IL · 1st of 102

Uninsured, under 65 (2024)

6.1%

90% interval 5.7%–6.5% · Census SAHIE

The under-65 uninsured rate is not comparable to the ACS insurance figures, which cover all ages.

Trial court

18th Judicial Circuit Court

Judges

36 (Combined Circuit Judge + Associate Judge counts per circuit. Vintage 2024-2025; hand-sourced from per-circuit official court websites and the 2023-2024 Illinois Blue Book (ilsos.gov) judge roster, cross-referenced against the Administrative Office of the Illinois Courts directory. Cook County total of ~400 reflects the Circuit Court of Cook County's combined elected Circuit Judges (~257) plus appointed Associate Judges (~145), the largest unified trial court in the United States. Several smaller downstate circuits carry estimates (see source comments).)

Court seats

Wheaton

Traffic fatalities

56

7.74 per 100k adults (18+)

Fatal crashes

54