Union township is located in Hardin County, Iowa Iowa. Unfortunately, the data for this location is currently limited or unavailable.
The median age in Union township is 25.9 years: 43.4 years for males, and 17.9 years for females. For every 100 females there are 66.4 males.
The racial composition of Union township includes 100% White, and smaller percentages for and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 604 | 100% |