| Place Name | Union Bridge |
| Place Type | Town |
| ZIP Code(s) | 21791 |
| County | Carroll County |
| Area Code(s) | 410,443,667 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 890 |
| Population Growth Rate (2010-19) | -4.00% |
| Majority Ethnicity | White 88.46% |
| Metro/Micro Stats Area | Baltimore-Columbia-Towson, MD |
| US Congressional District(s) | Maryland 8th |
| House of Delegates Districts | 5 |
| State Senate Districts | 5 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 88.46% |
| African American | 3.46% |
| Hispanic | 0% |
| Asian | 6.3% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.78% |