| Place Name | Deal Island |
| Place Type | Census Designated Place |
| ZIP Code(s) | 21821 |
| County | Somerset County |
| Area Code(s) | 410,443,667 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 411 |
| Population Growth Rate (2010-19) | -20.38% |
| Majority Ethnicity | White 97.09% |
| Metro/Micro Stats Area | Salisbury, MD-DE |
| US Congressional District(s) | Maryland 1st |
| House of Delegates Districts | 38A |
| State Senate Districts | 38 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.09% |
| African American | 2.91% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |