| Name | Clark County |
| State | Ohio |
| FIPS Code | 39023 |
| County Seat | Springfield |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 138,278 |
| Population Growth Rate(2000-2022) | -1.69% |
| Majority Ethnicity | White 90.49% |
| Public School Majority Ethnicity | White 71% |
| Partisan Voting Index | Republican:+14 |
| Unemployment Rate (February 2025) | 4.5% |
| Area Code(s) | 326 / 937 / 220 / 740 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 90.49% |
| African American | 8.65% |
| Hispanic | 0.06% |
| Asian | 0.67% |
| Native American | 0.07% |
| Hawaiin/Pacific Islander | 0.07% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 71.06% |
| African American | 11.03% |
| Hispanic | 7.87% |
| Asian | 0.38% |
| Native American | 0.14% |
| Hawaiin/Pacific Islander | 0.14% |