Demographics & People — Sycamore, Illinois
Population Overview
| Population (Census) | 18,243 |
| Estimated 2026 | ~19,300 |
| Median Age | 36.1 |
| Total Households | 7,499 |
| Family Households | 4,939 |
| Average Household Size | 2.41 |
| Diversity Index | 0.2394 (somewhat diverse) |
Race & Ethnicity
| White | 16,215 |
| Black or African American | 633 |
| Asian | 182 |
| Hispanic or Latino | 1,677 |
Heritage & Ancestry
| Group | Count |
| German | 5,096 |
| Unclassified or not reported | 2,987 |
| Other groups | 2,837 |
| Irish | 2,678 |
| English | 1,935 |
| Italian | 1,786 |
| Hispanic: Hispanic or Latino | 1,615 |
| Swedish | 1,295 |
| Polish | 1,256 |
| Hispanic: Mexican | 891 |
Language
| English Only | 16,180 |
| Spanish | 992 |
| Population 5+ | 17,444 |
Veterans
| Veterans | 852 |
| Population 18+ | 13,783 |
Commuting
| Mean Commute Time | 26.3 minutes |
| Work from Home | 13.4% |
| 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 Sycamore, Illinois.