| Place Name | Mayo |
| Place Type | Census Designated Place |
| ZIP Code(s) | 20776 21037 |
| County | Anne Arundel County |
| Area Code(s) | 410,443,667 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 8,395 |
| Population Growth Rate (2010-19) | 6.44% |
| Majority Ethnicity | White 94.21% |
| Metro/Micro Stats Area | Baltimore-Columbia-Towson, MD |
| US Congressional District(s) | Maryland 5th |
| House of Delegates Districts | 30B |
| State Senate Districts | 30 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 94.21% |
| African American | 3.51% |
| Hispanic | 0% |
| Asian | 1.44% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.84% |