| Place Name | South Union Township |
| Place Type | Township |
| ZIP Code(s) | 72459 72482 72542 |
| County | Sharp County |
| Area Code(s) | 327,870 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 429 |
| Majority Ethnicity | White 99.26% |
| Metro/Micro Stats Area | Batesville, AR |
| US Congressional District(s) | Arkansas 1st |
| State House Districts | 60 |
| State Senate Districts | 19 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 99.26% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.74% |