| Place Name | Hummelstown |
| Place Type | Borough |
| ZIP Code(s) | 17036 |
| County | Dauphin County |
| Area Code(s) | 717 |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 4,515 |
| Population Growth Rate (2010-19) | 0.13% |
| Majority Ethnicity | White 89.51% |
| Metro/Micro Stats Area | Harrisburg-Carlisle, PA |
| US Congressional District(s) | Pennsylvania 15th |
| State House Districts | 106 |
| State Senate Districts | 15 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 89.51% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 1.57% |
| Native American | 0.02% |
| Hawaiin/Pacific Islander | 8.9% |