Demographics & People — Darien, Illinois
Population Overview
| Population (Census) | 21,855 |
| Estimated 2026 | ~21,900 |
| Median Age | 44.4 |
| Total Households | 8,830 |
| Family Households | 6,344 |
| Average Household Size | 2.47 |
| Diversity Index | 0.3886 (somewhat diverse) |
Race & Ethnicity
| White | 16,477 |
| Black or African American | 667 |
| Asian | 2,438 |
| Hispanic or Latino | 1,871 |
Heritage & Ancestry
| Group | Count |
| Other groups | 4,785 |
| Unclassified or not reported | 3,289 |
| German | 3,109 |
| Irish | 3,012 |
| Polish | 2,975 |
| Italian | 2,813 |
| Hispanic: Hispanic or Latino | 1,746 |
| Hispanic: Mexican | 1,376 |
| English | 1,105 |
| Czech | 1,012 |
Language
| English Only | 15,476 |
| Spanish | 925 |
| Population 5+ | 20,958 |
Veterans
| Veterans | 915 |
| Population 18+ | 18,072 |
Commuting
| Mean Commute Time | 28.7 minutes |
| Work from Home | 20.5% |
| Commuter Profile | N/A |
Source: Census ACS 5-Year 2023; Census ACS 5-Year 2023, Table B01003; Census ACS 5-Year 2023, B19013. Data for Darien, Illinois.