| Place Name | Lower Allen Township |
| Place Type | Township |
| ZIP Code(s) | 17011 17043 17055 17070 17339 |
| County | Cumberland County |
| Area Code(s) | 717 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2021) | 19,755 |
| Majority Ethnicity | White 75.52% |
| Metro/Micro Stats Area | Harrisburg-Carlisle, PA |
| US Congressional District(s) | Pennsylvania 4th |
| State House Districts | 88 |
| State Senate Districts | 31 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 75.52% |
| African American | 11.18% |
| Hispanic | 0.15% |
| Asian | 3.34% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 9.81% |