| Name | De Witt County |
| State | Illinois |
| FIPS Code | 17039 |
| County Seat | Clinton |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 15,331 |
| Population Growth Rate(2020-2024) | -1.24% |
| Majority Ethnicity | White 95.04% |
| Public School Majority Ethnicity | White 87% |
| Partisan Voting Index | Strongly Republican:+23 |
| Unemployment Rate (May 2026) | 4.8% |
| Area Code(s) | 217 / 309 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 95.04% |
| African American | 1.04% |
| Hispanic | 3.38% |
| Asian | 0.2% |
| Native American | 0.34% |
| 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% |