| Place Name | Black Rock |
| Place Type | City |
| ZIP Code(s) | 72415 |
| County | Lawrence County |
| Area Code(s) | 327,870 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 618 |
| Population Growth Rate (2010-19) | -10.88% |
| Majority Ethnicity | White 99.64% |
| US Congressional District(s) | Arkansas 1st |
| State House Districts | 60 |
| State Senate Districts | 20 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 99.64% |
| African American | 0% |
| Hispanic | 0.36% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |