| Place Name | Timonium |
| Place Type | Census Designated Place |
| ZIP Code(s) | 21093 21131 21286 |
| County | Baltimore County |
| Area Code(s) | 410,443,667 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 9,942 |
| Population Growth Rate (2010-19) | 5.37% |
| Majority Ethnicity | White 82.26% |
| Metro/Micro Stats Area | Baltimore-Columbia-Towson, MD |
| US Congressional District(s) | Maryland 2nd |
| House of Delegates Districts | 42B |
| State Senate Districts | 42 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 82.26% |
| African American | 5.92% |
| Hispanic | 0% |
| Asian | 9.56% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 2.25% |