| Place Name | Clark Township (Clinton County) |
| Place Type | Township |
| ZIP Code(s) | 45142 45146 45148 45159 45177 |
| County | Clinton County |
| Area Code(s) | 326,937 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 2,110 |
| Majority Ethnicity | White 97.54% |
| Metro/Micro Stats Area | Wilmington, OH |
| US Congressional District(s) | Ohio 15th |
| State House Districts | 91 |
| State Senate Districts | 17 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.54% |
| African American | 0.23% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.23% |