| Place Name | Union Township (Benton County) |
| Place Type | Township |
| ZIP Code(s) | 52209 52249 52346 |
| County | Benton County |
| Area Code(s) | 319 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 948 |
| Majority Ethnicity | White 98.84% |
| Metro/Micro Stats Area | Cedar Rapids, IA |
| US Congressional District(s) | Iowa 1st |
| State House Districts | 75 |
| State Senate Districts | 38 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.84% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.16% |