| Place Name | Letterkenny Township |
| Place Type | Township |
| County | Franklin County |
| Area Code(s) | 717 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 2,435 |
| Majority Ethnicity | White 98.61% |
| Metro/Micro Stats Area | Chambersburg-Waynesboro, PA |
| US Congressional District(s) | Pennsylvania 9th |
| State House Districts | 90 |
| State Senate Districts | 33 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 98.61% |
| African American | 0.46% |
| Hispanic | 0% |
| Asian | 0.93% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |