| Place Name | Cape St. Claire |
| Place Type | Census Designated Place |
| ZIP Code(s) | 21012 21122 21409 |
| County | Anne Arundel County |
| Area Code(s) | 410,443,667 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 8,746 |
| Population Growth Rate (2010-19) | 4.94% |
| Majority Ethnicity | White 87.69% |
| Metro/Micro Stats Area | Baltimore-Columbia-Towson, MD |
| US Congressional District(s) | Maryland 3rd |
| House of Delegates Districts | 33 |
| State Senate Districts | 33 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 87.69% |
| African American | 5.12% |
| Hispanic | 0% |
| Asian | 2.66% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 4.53% |