| Place Name | Union |
| Place Type | City |
| ZIP Code(s) | 45322 45371 45377 45383 |
| County | Montgomery County Miami County |
| Area Code(s) | 326,937 |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 6,366 |
| Population Growth Rate (2010-19) | 6.85% |
| Majority Ethnicity | White 95.38% |
| Metro/Micro Stats Area | Dayton-Kettering, OH |
| US Congressional District(s) | Ohio 10thOhio 8th |
| State House Districts | 40,80 |
| State Senate Districts | 5,6 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.38% |
| African American | 2.66% |
| Hispanic | 0.43% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.53% |