West Mayfield is a borough in Beaver County, Pennsylvania, United States. Population in 2012: 1,227 (100% urban, 0% rural). Population change since 2000: +3.4% (1,187).
West Mayfield is located at 40°46′43″N 80°20′12″W (40.778664, -80.336796).
According to the United States Census Bureau, the borough has a total area of 0.8 square miles (2.1 km2), all of it land.
West Mayfield is home to a picturesque community park containing a meandering stream called Walnut Bottom Run which eventually empties into the Beaver River.