| Name | Jo Daviess County |
| State | Illinois |
| FIPS Code | 17085 |
| County Seat | Galena |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 22,663 |
| Population Growth Rate(2000-2022) | -2.84% |
| Majority Ethnicity | White 98.28% |
| Public School Majority Ethnicity | White 87% |
| Partisan Voting Index | Republican:+6 |
| Unemployment Rate (December 2024) | 3.9% |
| Area Code(s) | 815 / 779 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 98.28% |
| African American | 0.83% |
| Hispanic | 0.16% |
| Asian | 0.59% |
| Native American | 0.08% |
| Hawaiin/Pacific Islander | 0.08% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 86.64% |
| African American | 1.38% |
| Hispanic | 7.85% |
| Asian | 0.64% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.06% |