
Clay township
- County:
- Lancaster County
- County Seat:
- No
- Area (mi²):
- 21.994
- State:
- Pennsylvania
Clay township is located in Lancaster County, Pennsylvania. Clay township has a 2025 population of 7,023. Clay township is currently growing at a rate of 0.43% annually and its population has increased by 2.44% since the most recent census, which recorded a population of 6,856 in 2020.
The average household income in Clay township is $99,545 with a poverty rate of 5.85%. The median age in Clay township is 41.6 years: 37.3 years for males, and 46.6 years for females.