| Name | Boone County |
| State | Illinois |
| FIPS Code | 17007 |
| County Seat | Belvidere |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 53,239 |
| Population Growth Rate(2020-2024) | -0.39% |
| Majority Ethnicity | White 72.07% |
| Public School Majority Ethnicity | White 51% |
| Partisan Voting Index | Republican:+8 |
| Unemployment Rate (May 2026) | 7.4% |
| Sales Tax Rate (2025) | 7.75% |
| Area Code(s) | 815 / 779 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 72.07% |
| African American | 2.39% |
| Hispanic | 24.17% |
| Asian | 0.97% |
| Native American | 0.4% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 50.75% |
| African American | 2.76% |
| Hispanic | 41.42% |
| Asian | 0.65% |
| Native American | 0.26% |
| Hawaiin/Pacific Islander | 0.06% |