| Place Name | Marklesburg |
| Place Type | Borough |
| ZIP Code(s) | 16647 16657 |
| County | Huntingdon County |
| Area Code(s) | 814 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 254 |
| Population Growth Rate (2010-19) | -1.96% |
| Majority Ethnicity | White 95.8% |
| Metro/Micro Stats Area | Huntingdon, PA |
| US Congressional District(s) | Pennsylvania 9th |
| State House Districts | 81 |
| State Senate Districts | 30 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 95.8% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 4.2% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |