| Place Name | Ellerslie |
| Place Type | Census Designated Place |
| ZIP Code(s) | 21529 |
| County | Allegany County |
| Area Code(s) | 240,301 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 349 |
| Population Growth Rate (2010-19) | 13.81% |
| Majority Ethnicity | White 99.1% |
| Metro/Micro Stats Area | Cumberland, MD-WV |
| US Congressional District(s) | Maryland 6th |
| House of Delegates Districts | 1B |
| State Senate Districts | 1 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 99.1% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.9% |