24. Conestoga Senior High School
Conestoga Senior High School in Berwin, Pennsylvania, has an average SAT score of 1310 and an average ACT score of 30. It has a student enrollment of 2,062 in grades 9-12. The student-teacher ratio is 16:1. Proficiency in mathematics and reading is 95%. The average graduation rate is 95%. Conestoga is the only upper secondary school in the Tredyffrin/Easttown School District. Students are grouped by instructional levels in all academic departments: Mathematics, Science, English, Social Studies and World Languages.

They can choose from many distinct courses to develop an individualized program of study that addresses their personal, educational and vocational goals. Self-directed learning, independent study and other enrichment opportunities are available in all disciplines. They must earn 24 credits to meet graduation requirements. For the class of 2017, 62% of students took at least one AP test and scored a 3 or higher. Qualifying seniors (98%) participate in a four-week career internship program.