West Mayfield is a borough in Beaver County, Pennsylvania.

According to the United States Census Bureau of 2000, West Mayfield is home to more than 1,100 residents. The borough has a total area of 0.8 square miles and is located over 1,000 feet above sea level.

The racial composition of West Mayfield is 98.92% White, 0.08% Asian, 0.17% from other races, and 0.83% from two or more races. Hispanic or Latino of any race are 0.67% of the population.

West Mayfield has more than 450 households. The median income for a household in the borough is $36,324, and the median income for a family is $41,645.