| Name | Bureau County |
| State | Illinois |
| FIPS Code | 17011 |
| County Seat | Princeton |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 32,758 |
| Population Growth Rate(2020-2024) | -1.58% |
| Majority Ethnicity | White 88.64% |
| Public School Majority Ethnicity | White 77% |
| Partisan Voting Index | Republican:+12 |
| Unemployment Rate (May 2026) | 6.4% |
| Sales Tax Rate (2025) | 7.25% |
| Area Code(s) | 815 / 779 / 309 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 88.64% |
| African American | 0.64% |
| Hispanic | 9.8% |
| Asian | 0.86% |
| Native American | 0.06% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 76.82% |
| African American | 1.07% |
| Hispanic | 18.91% |
| Asian | 0.5% |
| Native American | 0.09% |
| Hawaiin/Pacific Islander | 0.11% |