| Place Name | Middletown |
| Place Type | Town |
| ZIP Code(s) | 21769 |
| County | Frederick County |
| Area Code(s) | 240,301 |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 4,105 |
| Population Growth Rate (2010-19) | 19.51% |
| Majority Ethnicity | White 86.97% |
| Metro/Micro Stats Area | Washington-Arlington-Alexandria, DC-VA-MD-WV |
| US Congressional District(s) | Maryland 8th |
| House of Delegates Districts | 4 |
| State Senate Districts | 4 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 86.97% |
| African American | 0.82% |
| Hispanic | 0% |
| Asian | 10.26% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.95% |