Sewickley Academy is the oldest independent day school in the Pittsburgh area with origins dating back to 1838. Originally an academy for boys, the school was reorganized in the 1880s for boys and girls. Approximately half of the students live in the Sewickley Valley area, but students from more than 50 school districts, including several in eastern Ohio and northern West Virginia, now attend Sewickley Academy, where the average classroom size is 15 students. The culturally diverse campus has many amenities, including two greenhouses, a media center, two libraries, a fully equipped fitness center, a black-box theater, auditorium and art gallery.