| Name | Franklin County |
| State | Illinois |
| FIPS Code | 17055 |
| County Seat | Benton |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 39,518 |
| Population Growth Rate(2000-2022) | -4.44% |
| Majority Ethnicity | White 99.24% |
| Public School Majority Ethnicity | White 94% |
| Partisan Voting Index | Strongly Republican:+22 |
| Unemployment Rate (December 2024) | 5.4% |
| Area Code(s) | 618 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 99.24% |
| African American | 0.42% |
| Hispanic | 0.07% |
| Asian | 0.27% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 93.65% |
| African American | 0.73% |
| Hispanic | 2.37% |
| Asian | 0.48% |
| Native American | 0.04% |
| Hawaiin/Pacific Islander | 0.02% |