Clay is a CDP located in Lancaster County, Pennsylvania. Clay has a 2026 population of 1,580. Clay is currently growing at a rate of 0.06% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The median age in Clay is 52.1 years: 52.8 years for males, and 48.6 years for females. For every 100 females there are 115.8 males.
Data after 2023 is projected based on recent change
Overall: 52.1 years
Female: 48.6 years
Male: 52.8 years
There are 1,155 adults, (353 of whom are seniors) in Clay.
Female: 631 (46.3%)
Male: 731 (53.7%)
The racial composition of Clay includes 93.1% White, 5.8% other race, and smaller percentages for Two or more races and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 1,268 | 93.1% |
| Other race | 79 | 5.8% |
| Two or more races | 15 | 1.1% |