| Name | DuPage County |
| State | Illinois |
| FIPS Code | 17043 |
| County Seat | Wheaton |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 929,180 |
| Population Growth Rate(2020-2024) | -0.41% |
| Majority Ethnicity | White 66.57% |
| Public School Majority Ethnicity | White 49% |
| Partisan Voting Index | Democratic:+7 |
| Unemployment Rate (May 2026) | 4.5% |
| Sales Tax Rate (2025) | 8% |
| Area Code(s) | 331 / 630 / 224 / 847 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 66.57% |
| African American | 4.97% |
| Hispanic | 15.59% |
| Asian | 12.51% |
| Native American | 0.34% |
| Hawaiin/Pacific Islander | 0.03% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 48.71% |
| African American | 6.56% |
| Hispanic | 26.4% |
| Asian | 13.58% |
| Native American | 0.3% |
| Hawaiin/Pacific Islander | 0.12% |