| Place Name | Union Township (Adams County) |
| Place Type | Township |
| ZIP Code(s) | 46733 46773 |
| County | Adams County |
| Area Code(s) | 260 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 644 |
| Majority Ethnicity | White 90.62% |
| Metro/Micro Stats Area | Decatur, IN |
| US Congressional District(s) | Indiana 3rd |
| State House Districts | 79 |
| State Senate Districts | 19 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 90.62% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 9.38% |