| Place Name | Union Charter Township |
| Place Type | Charter Township |
| ZIP Code(s) | 48858 |
| County | Isabella County |
| Area Code(s) | 989 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 12,059 |
| Majority Ethnicity | White 87.66% |
| Metro/Micro Stats Area | Mount Pleasant, MI |
| US Congressional District(s) | Michigan 4th |
| State House Districts | 99 |
| State Senate Districts | 33 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 87.66% |
| African American | 3.19% |
| Hispanic | 3.03% |
| Asian | 2.16% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 3.96% |