| Place Name | Madison |
| Place Type | Census Designated Place |
| ZIP Code(s) | 21648 |
| County | Dorchester County |
| Area Code(s) | 410,443,667 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 133 |
| Population Growth Rate (2010-19) | 0.49% |
| Majority Ethnicity | White 79.59% |
| Metro/Micro Stats Area | Cambridge, MD |
| US Congressional District(s) | Maryland 1st |
| House of Delegates Districts | 37B |
| State Senate Districts | 37 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 79.59% |
| African American | 8.84% |
| Hispanic | 0% |
| Asian | 7.48% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 4.08% |