Avon Grove High School is a public high school located in Southern Chester County, Pennsylvania, United States. It is part of the Avon Grove School District. Avon Grove High School enrolls about ~1,826 students in grades 9-12. The school was established in 1928 with Pierre S. du Pont being involved in designing its first building. A newer building was built in 1957, and renovated in the 90's. Currently being renovated again with plans to become the new Avon Grove School District Middle School