| Name | Winnebago County |
| State | Illinois |
| FIPS Code | 17201 |
| County Seat | Rockford |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 294,433 |
| Population Growth Rate(2000-2022) | -3.36% |
| Majority Ethnicity | White 81.18% |
| Public School Majority Ethnicity | White 44% |
| Partisan Voting Index | Democratic:+2 |
| Unemployment Rate (November 2024) | 5.5% |
| Area Code(s) | 815 / 779 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 81.18% |
| African American | 15.16% |
| Hispanic | 0.33% |
| Asian | 3.25% |
| Native American | 0.04% |
| Hawaiin/Pacific Islander | 0.04% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 43.76% |
| African American | 21.21% |
| Hispanic | 24.62% |
| Asian | 2.95% |
| Native American | 0.22% |
| Hawaiin/Pacific Islander | 0.07% |