| Place Name | Middle River |
| Place Type | Census Designated Place |
| ZIP Code(s) | 21220 |
| County | Baltimore County |
| Area Code(s) | 410,443,667 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 25,301 |
| Population Growth Rate (2010-19) | 31.81% |
| Majority Ethnicity | White 53.95% |
| Metro/Micro Stats Area | Baltimore-Columbia-Towson, MD |
| US Congressional District(s) | Maryland 2nd |
| House of Delegates Districts | 6,7 |
| State Senate Districts | 6,7 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 53.95% |
| African American | 32.08% |
| Hispanic | 0.19% |
| Asian | 5.59% |
| Native American | 0.07% |
| Hawaiin/Pacific Islander | 8.12% |