| Name | Union County |
| State | Illinois |
| FIPS Code | 17181 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 17,799 |
| Population Growth Rate(2000-2022) | -3.17% |
| Majority Ethnicity | White 93.12% |
| Public School Majority Ethnicity | White 88% |
| Partisan Voting Index | Republican:+19 |
| Unemployment Rate | 6.2% |
| Race/Ethnicy | Percentage of Population (2018) |
|---|---|
| White | 93.12% |
| African American | 1.37% |
| Hispanic | 5.06% |
| Asian | 0.34% |
| Native American | 0.11% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicy | Percentage of Public School Students (2018) |
|---|---|
| White | 88.01% |
| African American | 1.49% |
| Hispanic | 8.22% |
| Asian | 0.58% |
| Native American | 0.17% |
| Hawaiin/Pacific Islander | 0.07% |