West Mayfield
- County:
- Beaver County
- County Seat:
- No
- Area (mi²):
- 0.795
- State:
- Pennsylvania
West Mayfield is a borough located in Beaver County, Pennsylvania. West Mayfield has a 2026 population of 1,165. West Mayfield is currently declining at a rate of -0.26% annually and its population has decreased by -2.51% since the most recent census, which recorded a population of 1,195 in 2020.