| Name | Adams County |
| State | Illinois |
| FIPS Code | 17001 |
| County Seat | Quincy |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 67,098 |
| Population Growth Rate(2000-2022) | -2.04% |
| Majority Ethnicity | White 95.05% |
| Public School Majority Ethnicity | White 81% |
| Partisan Voting Index | Strongly Republican:+22 |
| Unemployment Rate (November 2024) | 3.9% |
| Area Code(s) | 217 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 95.05% |
| African American | 4.09% |
| Hispanic | 0.06% |
| Asian | 0.77% |
| Native American | 0.01% |
| Hawaiin/Pacific Islander | 0.01% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 81.3% |
| African American | 5.92% |
| Hispanic | 3.09% |
| Asian | 0.54% |
| Native American | 0.13% |
| Hawaiin/Pacific Islander | 0.08% |