| Name | Effingham County |
| State | Illinois |
| FIPS Code | 17049 |
| County Seat | Effingham |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 34,258 |
| Population Growth Rate(2000-2022) | 1.24% |
| Majority Ethnicity | White 98.6% |
| Public School Majority Ethnicity | White 92% |
| Partisan Voting Index | Strongly Republican:+28 |
| Unemployment Rate (November 2024) | 3.5% |
| Area Code(s) | 217 / 618 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 98.6% |
| African American | 0.66% |
| Hispanic | 0.05% |
| Asian | 0.69% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 92.21% |
| African American | 1.24% |
| Hispanic | 3.66% |
| Asian | 0.6% |
| Native American | 0.11% |
| Hawaiin/Pacific Islander | 0.04% |