| Place Name | Clark Township (Pike County) |
| Place Type | Township |
| ZIP Code(s) | 71921 71943 |
| County | Pike County |
| Area Code(s) | 327,870 |
| Timezone | Central Standard Time (CST) |
| Population (2021) | 3,135 |
| Majority Ethnicity | White 82.42% |
| US Congressional District(s) | Arkansas 4th |
| State House Districts | 19 |
| State Senate Districts | 10 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 82.42% |
| African American | 1.77% |
| Hispanic | 0.59% |
| Asian | 0.47% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 14.74% |