| Name | Mercer County |
| State | Illinois |
| FIPS Code | 17131 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 16,421 |
| Population Growth Rate(2000-2022) | -4.47% |
| Majority Ethnicity | White 96.11% |
| Public School Majority Ethnicity | White 92% |
| Partisan Voting Index | Republican:+9 |
| Unemployment Rate | 6.9% |
| Race/Ethnicy | Percentage of Population (2018) |
|---|---|
| White | 96.11% |
| African American | 0.62% |
| Hispanic | 2.8% |
| Asian | 0.48% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicy | Percentage of Public School Students (2018) |
|---|---|
| White | 91.96% |
| African American | 1.17% |
| Hispanic | 2.66% |
| Asian | 0.47% |
| Native American | 0.05% |
| Hawaiin/Pacific Islander | 0.05% |