| Name | De Witt County |
| State | Illinois |
| FIPS Code | 17039 |
| County Seat | Clinton |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 16,562 |
| Population Growth Rate(2000-2022) | -6.31% |
| Majority Ethnicity | White 98.53% |
| Public School Majority Ethnicity | White 87% |
| Partisan Voting Index | Republican:+19 |
| Unemployment Rate (December 2024) | 4.5% |
| Area Code(s) | 217 / 309 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 98.53% |
| African American | 0.95% |
| Hispanic | 0.33% |
| Asian | 0.2% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 87.4% |
| African American | 1.41% |
| Hispanic | 6.12% |
| Asian | 0.26% |
| Native American | 0.18% |
| Hawaiin/Pacific Islander | 0.31% |