| Place Name | Union Township (Madison County) |
| Place Type | Township |
| ZIP Code(s) | 46012 46013 46017 47356 |
| County | Madison County |
| Area Code(s) | 765 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 8,849 |
| Majority Ethnicity | White 90.71% |
| Metro/Micro Stats Area | Indianapolis-Carmel-Anderson, IN |
| US Congressional District(s) | Indiana 5th |
| State House Districts | 35,36 |
| State Senate Districts | 25 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 90.71% |
| African American | 4.81% |
| Hispanic | 0.18% |
| Asian | 0.62% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 3.67% |