| Place Name | Caernarvon Township (Lancaster County) |
| Place Type | Township |
| ZIP Code(s) | 17519 17555 19344 19543 |
| County | Lancaster County |
| Area Code(s) | 717,484,610 |
| Timezone | Eastern Standard Time (EST) |
| Population (2021) | 4,631 |
| Majority Ethnicity | White 97.41% |
| Metro/Micro Stats Area | Lancaster, PA |
| US Congressional District(s) | Pennsylvania 16th |
| State House Districts | 99 |
| State Senate Districts | 36 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 97.41% |
| African American | 0.31% |
| Hispanic | 0% |
| Asian | 1.81% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0.46% |