| Place Name | Ellicott City |
| Place Type | Census Designated Place |
| ZIP Code(s) | 21042 21043 |
| County | Howard County |
| Area Code(s) | 410,443,667 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 66,476 |
| Population Growth Rate (2010-19) | 15.36% |
| Majority Ethnicity | White 56.13% |
| Metro/Micro Stats Area | Baltimore-Columbia-Towson, MD |
| US Congressional District(s) | Maryland 7th |
| House of Delegates Districts | 12,9A,9B |
| State Senate Districts | 9,12 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 56.13% |
| African American | 8.45% |
| Hispanic | 0.21% |
| Asian | 30.49% |
| Native American | 0.04% |
| Hawaiin/Pacific Islander | 4.68% |