| Name | Washington County |
| State | Illinois |
| FIPS Code | 17189 |
| County Seat | Nashville |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 14,692 |
| Population Growth Rate(2000-2022) | -6.49% |
| Majority Ethnicity | White 98.9% |
| Public School Majority Ethnicity | White 93% |
| Partisan Voting Index | Strongly Republican:+26 |
| Unemployment Rate (November 2024) | 2.7% |
| Area Code(s) | 618 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 98.9% |
| African American | 0.8% |
| Hispanic | 0.08% |
| Asian | 0.22% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 92.74% |
| African American | 1.18% |
| Hispanic | 2.25% |
| Asian | 0.68% |
| Native American | 0.17% |
| Hawaiin/Pacific Islander | 0.39% |