| Place Name | Unionville |
| Place Type | Unincorporated |
| ZIP Code(s) | 21771 |
| County | Frederick County |
| Area Code(s) | 240,301 |
| Timezone | Eastern Daylight Time (EDT) |
| Population () | |
| Metro/Micro Stats Area | Washington-Arlington-Alexandria, DC-VA-MD-WV |
| US Congressional District(s) | Maryland 6th |
| House of Delegates Districts | 04 |
| State Senate Districts | 04 |