| Place Name | Clay |
| Place Type | Census Designated Place |
| ZIP Code(s) | 17522 17543 |
| County | Lancaster County |
| Area Code(s) | 717 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 1,612 |
| Population Growth Rate (2010-19) | 19.88% |
| Majority Ethnicity | White 91.04% |
| Metro/Micro Stats Area | Lancaster, PA |
| US Congressional District(s) | Pennsylvania 16th |
| State House Districts | 37 |
| State Senate Districts | 36 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 91.04% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 2.76% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 6.2% |