| Place Name | Union Township (Polk County) |
| Place Type | Township |
| ZIP Code(s) | 50156 50226 50243 |
| County | Polk County |
| Area Code(s) | 515 |
| Timezone | Central Standard Time (CST) |
| Population (2021) | 479 |
| Majority Ethnicity | White 100% |
| Metro/Micro Stats Area | Des Moines-West Des Moines, IA |
| US Congressional District(s) | Iowa 3rd |
| State House Districts | 19 |
| State Senate Districts | 10 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 100% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |