| Name | Clark County |
| State | Ohio |
| FIPS Code | 39023 |
| County Seat | Springfield |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2024) | 134,735 |
| Population Growth Rate(2020-2024) | -0.92% |
| Majority Ethnicity | White 86.49% |
| Public School Majority Ethnicity | White 71% |
| Partisan Voting Index | Republican:+14 |
| Unemployment Rate (May 2026) | 4.9% |
| Sales Tax Rate (2025) | 7.25% |
| Area Code(s) | 326 / 937 / 220 / 740 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 86.49% |
| African American | 8.51% |
| Hispanic | 4.19% |
| Asian | 0.65% |
| Native American | 0.05% |
| Hawaiin/Pacific Islander | 0.11% |
| 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% |