| Name | Fayette County |
| State | Illinois |
| FIPS Code | 17051 |
| County Seat | Vandalia |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 22,082 |
| Population Growth Rate(2000-2022) | -2.94% |
| Majority Ethnicity | White 94.53% |
| Public School Majority Ethnicity | White 95% |
| Partisan Voting Index | Strongly Republican:+29 |
| Unemployment Rate (November 2024) | 4.4% |
| Area Code(s) | 618 / 217 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 94.53% |
| African American | 3.62% |
| Hispanic | 0.46% |
| Asian | 0.49% |
| Native American | 0.45% |
| Hawaiin/Pacific Islander | 0.45% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 94.65% |
| African American | 0.44% |
| Hispanic | 1.46% |
| Asian | 0.26% |
| Native American | 0.03% |
| Hawaiin/Pacific Islander | 0.06% |