Koppel
- County:
- Beaver County
- County Seat:
- No
- Area (mi²):
- 0.537
- State:
- Pennsylvania
Koppel is a borough located in Beaver County, Pennsylvania. Koppel has a 2026 population of 694. Koppel is currently declining at a rate of -0.29% annually and its population has decreased by -1.98% since the most recent census, which recorded a population of 708 in 2020.