| Place Name | Catonsville |
| Place Type | Census Designated Place |
| ZIP Code(s) | 21228 |
| County | Baltimore County |
| Area Code(s) | 410,443,667 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 42,527 |
| Population Growth Rate (2010-19) | 7.54% |
| Majority Ethnicity | White 67.48% |
| Metro/Micro Stats Area | Baltimore-Columbia-Towson, MD |
| US Congressional District(s) | Maryland 7th |
| House of Delegates Districts | 12,44B |
| State Senate Districts | 12,44 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 67.48% |
| African American | 18.94% |
| Hispanic | 0.36% |
| Asian | 8.53% |
| Native American | 0.21% |
| Hawaiin/Pacific Islander | 4.48% |