Coplay
- County:
- Lehigh County
- County Seat:
- No
- Area (mi²):
- 0.61
- State:
- Pennsylvania
Coplay is a borough located in Lehigh County, Pennsylvania. Coplay has a 2026 population of 3,555. Coplay is currently growing at a rate of 0.91% annually and its population has increased by 6.41% since the most recent census, which recorded a population of 3,341 in 2020.